Inappropriate Blood Research Articles

The Harm of Inappropriate Central Line Blood Cultures in Clinical Practice

This case report describes a 57-year-old man with end-stage kidney disease who was receiving hemodialysis through a tunneled central venous catheter and had severe hyperkalemia that prompted admission for emergent hemodialysis.

Ordering and Utilization of Peripheral Blood Flow Cytometry in an Academic Medical Center

Abstract Introduction/Objective The American Society for Clinical Pathology and the American Board of Internal Medicine’s Choosing Wisely campaign have developed best practice utilization guidelines for laboratory testing. Wisconsin Diagnostic Laboratories and Medical College of Wisconsin leadership noticed an increase in inappropriate peripheral blood flow cytometry testing in the last two years. An intervention was developed to help reduce inappropriate testing requests. Methods/Case Report The laboratory implemented a clinical decision support tool in the electronic medical record system that looked at patient diagnosis, history of stem cell transplant, and recommendations from pathology to help improve utilization of peripheral blood flow cytometry testing. Based on patient history, flow cytometry testing would move forward, or an alternative order of a peripheral blood pathology smear review with reflex to flow cytometry was offered. Pathologists would reflex flow cytometry if abnormalities were present by light microscopy or predetermined reflexing criteria were met. Results (if a Case Study enter NA) 314 cases were included for analysis. The intervention reduced volumes of peripheral blood flow cytometry in patients without a history of hematologic malignancy by 49.1% (p=<0.001). Appropriate utilization increased from 47.0% in the pre-intervention period to 80.4% in the post intervention period (p=<0.001). Significant diagnosis rate increased from 42.5% to 50.0% (p=.261). This resulted in a cost savings of $12,232 for the health system during the intervention period. Conclusion Clinical decision support based utilization efforts provide strong and consistent interventions to reduce the unnecessary and inappropriate ordering of peripheral blood flow cytometry.

WP4.6 - Reducing Unnecessary Transfusion of Blood Products – A Quality Improvement Project in a General Surgical Department in a District General Hospital

Abstract Aims To audit adherence of transfusion of blood products against NICE guideline thresholds. To reduce unnecessary blood transfusions following departmental teaching sessions and installation of posters on surgical wards. Methods We retrospectively audited all patients receiving packed red cells transfusions consecutively across two consecutive four-month periods in a general surgery department. Departmental teaching sessions were held after the first audit cycle, supplemented by installation of posters including NICE guideline thresholds on surgical wards. The medical notes for each patient were assessed for pre-transfusion haemoglobin, indication for transfusion, and whether each transfusion was prescribed according to NICE guidelines. Results A total of 112 units of packed red blood cells in 42 patients and 133 units in 43 patients were transfused, respectively, before and after intervention. 45 units (40.2%) were prescribed according to NICE guidelines on first audit, improving to 67 units (50.4%) following intervention. 23 units of blood (20.5% of total) were transfused back-to-back inappropriately on first audit, reducing to 6 units (4.51% of total) after intervention. There were 2 self-limiting transfusion-related reactions (1.79%) on first audit, both in patients transfused above guidance thresholds, and no reactions following intervention. At a raw cost of approximately £135 per unit of donated blood, savings of £1830 were made over a four-month period (£5493pa), not including nursing and administration costs Conclusions Through simple local interventions and stricter adherence to transfusion thresholds, we reduced inappropriate above-threshold blood product transfusions in our hospital. This corresponded to a reduction in unnecessary blood-transfusion reactions and significant hospital savings.

Feasibility study of a multidisciplinary DEprescribing review for Frail oldER Adults in Long-term care (DEFERAL) targeting potentially inappropriate antihypertensive medications

Abstract Introduction Frail older adults who reside in long-term care facilities (LTCFs) are at a higher risk of adverse drug events due to potentially inappropriate medications (PIMs). Deprescribing is a safe and effective method of reducing PIMs. Despite the benefits, there is evidence that deprescribing is not being conducted. The DEFERAL strategy was designed to support healthcare professionals (HCPs) to deprescribe PIMs for frail older adults in LTCFs. DEFERAL consists of a three-monthly multi-disciplinary team (MDT) deprescribing review, incorporating evidence-based deprescribing tools. It is conducted in person at the LTCF, targeting one pre-determined class of PIMs, organised by a nurse champion on site.[1] Aim To test the DEFERAL strategy, focusing on implementation outcomes of acceptability, feasibility, appropriateness and fidelity while collecting intervention data on deprescribing decision-making. Methods A feasibility study was conducted, recruiting a convenience sample of two LTCFs in the South-West of Ireland. The LTCFs required a general practitioner, pharmacist and nurse to be eligible. To be included in the deprescribing review, patients were required to be ≥65 years, frail, prescribed ≥1 antihypertensive and to have no deprescribing contraindications. The study followed a hybrid type three design,[2] focusing on implementation outcomes whilst collecting intervention data. HCP feedback was collected using a post-meeting survey, which was emailed to HCPs or available in paper format via the on-site nurse champion. Data were analysed quantitatively. Open-ended comment boxes were analysed using content analysis. Data on intervention outcomes were collected using a summary sheet documenting meeting attendance, recruitment and decision-making, and were analysed quantitatively. Results The survey was completed by ten HCPs (83.3%). Of completed surveys, 100% (n=10) agreed that the DEFERAL strategy was acceptable and appropriate to support deprescribing and 90% (n=9) agreed that it was feasible to undertake. The majority (90%) of HCPs indicated that they completed their designated roles exactly as described; however, qualitative feedback described site-specific modifications. In Site 1, the wider MDT were not engaged as intended and the site did not facilitate the education and screening phase as described. Site 2 introduced an additional resource to facilitate documentation of clinical measurements to support deprescribing decision-making. From a total of 90 residents, 56 (62.2%) were prescribed ≥1 antihypertensive medication. Of those resident at the time of the review, 16 (29.6%) patients were eligible and deprescribing occurred for six patients (37.5%) through dose reduction of antihypertensive medications. Documented reasons for not deprescribing included fear of negative consequences and inappropriate blood pressure measurements. Conclusion The DEFERAL strategy led to successful deprescribing of antihypertensive medications in LTCFs, supported with positive feedback on implementation outcomes. A strength of the strategy is its universal nature. DEFERAL could be adjusted to support deprescribing for different PIMs, patient cohorts or organisational structures in LTC. The strategy provides a blueprint to support medication reviews in LTC, integrating the pharmacist into routine practice. Future research is required to test the strategy for effectiveness, considering the site-specific modifications. A study limitation was the lack of completion of the follow-up survey, limiting the completeness of the feedback on the strategy.

Using Blood Wisely: lessons learnt in establishing a national implementation programme to reduce inappropriate red blood cell transfusion

BackgroundUp to 50% of blood is transfused inappropriately despite best evidence. In 2020, Choosing Wisely Canada launched a major national programme, ‘Using Blood Wisely’, the aim was to engage hospitals...

Using blood wisely in oncology patients: An institutional experience implementing Choosing Wisely Canada restrictive transfusion practices.

382 Background: Using Blood Wisely is a national Choosing Wisely Canada (CWC) initiative that challenges hospitals to benchmark themselves on evidence-informed restrictive transfusion strategies, with the aim to decrease inappropriate red blood cell (RBC) transfusions in Canada. We previously assessed transfusion practices among oncology patients at BC Cancer Vancouver during a 12-month period. Here we present the results of a second audit, after implementation of quality improvement (QI) interventions. Methods: BC Cancer Vancouver RBC transfusion records were obtained for the periods of October 2019-September 2020 and April 2021-March 2022. The percentage of transfusions that were single-unit or for hemoglobin (Hg) ≤80 g/L were measured to assess adherence to CWC targets of ≥65% and ≥80%, respectively, for these metrics. QI interventions were implemented after the first audit, including staff education (grand rounds presentation, sitewide email bulletin) and direct engagement of ordering physicians by nursing staff. Uni- and multivariate analyses were used to test associations between patient characteristics and transfusion outcomes. Results: Single-unit transfusions increased from 41% in inpatients (49/120) and 12% in outpatients (69/586) in the first audit, to 86% (126/146) in inpatients ( P<0.001) and 34% (170/495) in outpatients ( P<0.001) in the second audit. Transfusions for Hg ≤80 g/L increased from 79% (95/120) in inpatients and 66% (384/586) in outpatients, to 93% (136/146) in inpatients ( P=0.001) and 78% (384/495) in outpatients ( P<0.001). Patient factors associated with restrictive transfusion practices included inpatient status and having a hematological malignancy. Conclusions: In the face of fluctuating RBC shortages, interventions aimed at high-use populations like oncology patients are crucial to reducing transfusion overuse. Through education and prescriber engagement, we successfully reduced the rate of inappropriate RBC transfusions at our institution and achieved the status of a designated Using Blood Wisely Hospital.[Table: see text]

Fast in Action to Reduce Rejection (FARR): Pre-Analytical Errors in Blood Sampling Procedures by the Nurses

The pre-analytical errors are the major source of mistakes in laboratory diagnostics referring to all of the inappropriate performances before the specimens are measured by the analyzers2,such as improper sample collection, transport delays, illegible handwriting on requisition, wrong or missing identification, haemolysed, clotted 14 and quantity not sufficient (QNS) samples, wrong vacutainer selection, inappropriate blood to anticoagulant ratio and so on. However, it has been reported that the pre-analytical phase is error-prone which may lead to repeated sampling, inaccurate test results, delay in diagnosis, and may jeopardize patient safety which may potentially compromise patient care and clinical outcomes 7. This review examines pre-analytical errors, their causes, their impact on lab results, and strategies for creating clear classification systems to reduce these errors among nurses. Errors, often by trained staff nurses, highlight the need for regular competency tests and an active detection system to enhance lab testing reliability and quality. The study focused on identifying and categorizing errors 8 during phlebotomy collection. It aimed to mitigate these errors, which though not catastrophic, signalled system failures. The campaign successfully reduced errors from 368 to 287 after starting in response to a high error count in July 2022. The campaign also led to a shift from open to closed blood collection methods, including improved aseptic techniques. More than 1,000 nurses adopted this change, demonstrating a positive impact on maintaining sample quality and reducing errors. Overall, the campaign achieved remarkable success in addressing pre-analytical blood sample errors.

Blood transfusions post kidney transplantation are associated with inferior allograft and patient survival-it is time for rigorous patient blood management.

Patient Blood Management (PBM), endorsed by the World Health Organisation is an evidence-based, multi-disciplinary approach to minimise inappropriate blood product transfusions. Kidney transplantation presents a particular challenge to PBM, as comprehensive evidence of the risk of transfusion is lacking. The aim of this study is to investigate the prevalence of post-transplant blood transfusions across multiple centres, to analyse risk factors for transfusion and to compare transplant outcomes by transfusion status. This analysis was co-ordinated via the UK Transplant Registry within NHS Blood and Transplant (NHSBT), and was performed across 4 centres. Patients who had received a kidney transplant over a 1-year period, had their transfusion status identified and linked to data held within the national registry. Of 720 patients, 221(30.7%) were transfused, with 214(29.7%) receiving a red blood cell (RBC) transfusion. The proportion of patients transfused at each centre ranged from 20% to 35%, with a median time to transfusion of 4 (IQR:0-12) days post-transplant. On multivariate analysis, age [OR: 1.02(1.01-1.03), p=0.001], gender [OR: 2.11(1.50-2.98), p<0.0001], ethnicity [OR: 1.28(1.28-2.60), p=0.0008], and dialysis dependence pre-transplant [OR: 1.67(1.08-2.68), p=0.02], were associated with transfusion. A risk-adjusted Cox proportional hazards model showed transfusion was associated with inferior 1-year patient survival [HR 7.94(2.08-30.27), p=0.002] and allograft survival [HR: 3.33(1.65-6.71), p=0.0008], and inferior allograft function. RBC transfusions are common and are independently associated with inferior transplant outcomes. We urge that further research is needed to understand the mechanisms behind the outcomes, to support the urgent development of transplant-specific anaemia guidelines.

Implementation of diagnostic stewardship in two surgical ICUs: Time for a blood-culture change

Background: Blood cultures are commonly ordered for patients with low risk of bacteremia. Liberal blood-culture ordering increases the risk of false-positive results, which can lead to increased length of stay, excess antibiotics, and unnecessary diagnostic procedures. We implemented a blood-culture indication algorithm with data feedback and assessed the impact on ordering volume and percent positivity. Methods: We performed a prospective cohort study from February 2022 to November 2022 using historical controls from February 2020 to January 2022. We introduced the blood-culture algorithm (Fig. 1) in 2 adult surgical intensive care units (ICUs). Clinicians reviewed charts of eligible patients with blood cultures weekly to determine whether the blood-culture algorithm was followed. They provided feedback to the unit medical directors weekly. We defined a blood-culture event as ≥1 blood culture within 24 hours. We excluded patients aged &lt;18 years, absolute neutrophil count &lt;500, and heart and lung transplant recipients at the time of blood-culture review. Results: In total, 7,315 blood-culture events in the preintervention group and 2,506 blood-culture events in the postintervention group met eligibility criteria. The average monthly blood-culture rate decreased from 190 blood cultures per 1,000 patient days to 142 blood cultures per 1,000 patient days (P &lt; .01) after the algorithm was implemented. (Fig. 2) The average monthly blood-culture positivity increased from 11.7% to 14.2% (P = .13). Average monthly days of antibiotic therapy (DOT) was lower in the postintervention period than in the preintervention period (2,200 vs 1,940; P &lt; .01). (Fig. 3) The ICU length of stay did not change before the intervention compared to after the intervention: 10 days (IQR, 5–18) versus 10 days (IQR, 5–17; P = .63). The in-hospital mortality rate was lower during the postintervention period, but the difference was not statistically significant: 9.24% versus 8.34% (P = .17). The all-cause 30-day mortality was significantly lower during the intervention period: 11.9% versus 9.7% (P &lt; .01). The unplanned 30-day readmission percentage was significantly lower during the intervention period (10.6% vs 7.6%; P &lt; .01). Over the 9-month intervention, we reviewed 916 blood-culture events in 452 unique patients. Overall, 74.6% of blood cultures followed the algorithm. The most common reasons overall for ordering blood cultures were severe sepsis or septic shock (37%), isolated fever and/or leukocytosis (19%), and documenting clearance of bacteremia (15%) (Table 1). The most common indications for inappropriate blood cultures were isolated fever and/or leukocytosis (53%). Conclusions: We introduced a blood-culture algorithm with data feedback in 2 surgical ICUs and observed decreases in blood-culture volume without a negative impact on ICU LOS or mortality rate.Disclosure: None

Difficulties in the implementation of the ketogenic diet in adult patients with refractory epilepsy

BackgroundKetogenic diet therapies (KDT) are appropriate therapeutic options for pediatric and adult patients with intractable epilepsy. The application of KDT among adult patients with refractory epilepsy is limited compared to children for several reasons, including poor compliance. We present the significant reasons for the lack of adherence to KDT in our adult patients with intractable epilepsy. MethodsThis study was conducted retrospectively in adult patients with drug-resistant epilepsy who wereofferedand accepted toimplementKDT between 2014 and 2021. Demographic and clinical data were collected via electronic health records. The eventual outcome of KDT results was obtained from the consultant dietitian. The prevalence and reasons for the failure to implement KDT were investigated. We also obtained detailed information about patients who successfully applied the KDT. ResultsA total of 33 patients (18F; median age 28) who wereoffered and accepted to implement KDT were included. Baseline seizure frequency was >4 per week in 49%, and more than half of the patients used >3 anti-seizure medications (ASM). Epilepsy types were temporal in 10 (30%), extratemporal in 10 (30%), generalized in 6 (18%), and unclassified in 7 (22%) patients.Only 3 patients (9%) were able to maintain KDT in the long term. One of them (33%) benefited from this therapy.In the remaining 30 patients, the reasons for failure were inability to contact the dietitian in 5, failure to apply KDT for a particular reason in 7, inappropriate blood test results or any medical/surgical comorbidities in 6, improvement in seizure burden due to change in ASM in 5, still insufficient knowledge of KDT in 3, unresponsiveness to diet due to incorrect implementation in 1 and unidentified reasons in 3 patients. ConclusionsA significant percentage of adult patients with refractory seizures failed to use KDTin our study(91%).Strategies to improve compliance and minimize the side effects might increase the number of drug-refractory epilepsy patients who could benefit from this therapy.

Blood product transfusion practices in pediatric critically ill patients at a tertiary care hospital, Pakistan.

To determine the frequency of inappropriate blood product transfusions in pediatric critically ill patients. We collected data for this descriptive study from January to December 2020 at the Pediatric Intensive Care Unit (PICU) of Dr. RKMP Civil Hospital, Karachi. We included all patients one month to 12 years of age, admitted to pediatric intensive care unit and received any blood product transfusion. We reviewed their medical records and noted the demographic and clinical variables, type of blood product transfused with its indication and determined whether transfusion was appropriate or not, as per the standard guidelines and consensus recommendations. Number of patients who were transfused was n=39, out of which females were 51.3%. Mean age of the patients was 49.0 months ±50.9 months. Total number of transfusions done were n=135, with most common blood product transfused being Fresh Frozen plasma (FFP) in 44.4%. A total of n=117 (86.66%) transfusion were appropriate as per the standard guidelines, while 18 (13.33%) were inappropriate (P-value <0.5). The most common indication of FFP transfusion was INR >2.0 in 51.6%, for Packed red cell transfusion was hemoglobin between 5 and 7 gm/dl in 35.5% and for Platelets was <20,000 with risk of bleeding in 36.6%. This study highlights the occurrence of inappropriate transfusions in critically ill pediatric patients. We need to reinforce the knowledge of our health care workers and display the guidelines in intensive care units.

General improvements versus interruptive or non-interruptive alerts in the blood order set: study protocol for a randomized control trial to improve packed red blood cell utilization

BackgroundBlood transfusions can serve as a life-saving treatment, but inappropriate blood product transfusions can result in patient harm and excess costs for health systems. Despite published evidence supporting restricted packed red blood cell (pRBC) usage, many providers transfuse outside of guidelines. Here, we report a novel prospective, randomized control trial to increase guideline-concordant pRBC transfusions comparing three variations of clinical decision support (CDS) in the electronic health record (EHR).MethodsAll inpatient providers at University of Colorado Hospital (UCH) who order blood transfusions were randomized in a 1:1:1 fashion to the three arms of the study: (1) general order set improvements, (2) general order set improvements plus non-interruptive in-line help text alert, and (3) general order set improvements plus interruptive alert. Transfusing providers received the same randomized order set changes for 18 months. The primary outcome of this study is the guideline-concordant rate of pRBC transfusions. The primary objective of this study is to compare the group using the new interface (arm 1) versus the two groups using the new interface with interruptive or non-interruptive alerts (arms 2 and 3, combined). The secondary objectives compare guideline-concordant transfusion rates between arm 2 and arm 3 as well as comparing all of arms of the study in aggregate to historical controls. This trial concluded after 12 months on April 5, 2022.DiscussionCDS tools can increase guideline-concordant behavior. This trial will examine three different CDS tools to determine which type is most effective at increasing guideline-concordant blood transfusions.Trial registrationRegistered on ClinicalTrials.gov 3/20/21, NCT04823273. Approved by University of Colorado Institutional Review Board (19–0918), protocol version 1 4/19/2019, approved 4/30/2019.

Transfusion-related adverse reactions: An update from a district hospital in Ghana

Background: Transfusion therapy is indispensable for effective emergency medicine practice. However, in resource-poor settings transfusion therapy is suspected to be practiced in a manner that may be contributory to morbidity and mortality among blood recipients. Yet, there exists a wide information gap, with respect to incidence of transfusion-related adverse reactions secondary to inappropriate blood prescription.&#x0D; Objective: This study assessed incidence of transfusion-related adverse reactions in a district hospital in Ghana.&#x0D; Materials and Methods: A hospital-based cross-sectional study was conducted from December 2020 to January 2021. Patients attending a district hospital in Kumasi, Ghana who were prescribed blood transfusion were recruited into the study after oral/written consent. Patients’ demographic data, blood components and units of blood requested as well as the ward of patients were recorded. Records of patient’s full blood count (FBC), body temperature, blood pressure and transfusion-related adverse reactions were extracted from their medical folders.&#x0D; Results: Out of 200 patients, 169 were transfused with whole blood while 31 patients received packed red cells. Majority (48%) of the patients were transfused with ≤1 unit whereas 10% received 3 units of blood. Anaemia (Hb = 6.13 g/dl) and leukocytosis (WBC = 13.83 x 103/µL) were observed in the haematological parameters in which the MCV and lymphocyte count differed significantly in males compared to females. The overall incidence of transfusion-related adverse reactions was 47.5%. Of the 169 patients who received whole blood, more than half (53.8%) experienced more than one of the transfusion-related adverse reactions that were monitored. Finally, patients within the ages of 19-29 years had the highest incidence of transfusion reaction (30.5%) and overall, the number of units administered was significantly associated with the incidence of transfusion reaction (p&lt;0.011). Conclusion: Transfusion-related adverse reaction was common at the study setting. This could be attributed to inappropriate administration of blood and blood products. Strict adherence to World Health Organization recommendations on transfusion therapy needs to be encouraged and supervised in the study setting&gt;&lt; 0.011)&#x0D; Conclusion: Transfusion-related adverse reaction was common at the study setting. This could be attributed to inappropriate administration of blood and blood products. Strict adherence to World Health Organization recommendations on transfusion therapy needs to be encouraged and supervised in the study setting.

Marked hyperkalemia due to inappropriate blood sample storage in two suspected cases of familial pseudohyperkalemia.

We herein report two suspected cases of pseudohyperkalemia who presented with severe hyperkalemia examined at small primary care clinics; however, re-exams at a tertiary care hospital showed normal potassium levels. We reproduced the laboratory examination conditions of the clinics and found that hyperkalemia was due to sampling/storage condition of serum, which is strongly suggestive of familial pseudohyperkalemia (FP). FP is a possible but under-appreciated cause of hyperkalemia, which does not require treatment, so it is important to include FP in the differential diagnosis of hyperkalemia especially in cases with discrepant of serum potassium levels at different settings.

Assessing a standardized decision-making algorithm for blood culture collection in the intensive care unit

PurposeBlood cultures are commonly ordered for patients with low risk of bacteremia. Indications for obtaining blood cultures are often broad and ill defined, and decision algorithms for appropriate blood cultures have not been comprehensively evaluated in critically-ill populations. MethodsWe conducted a retrospective analysis to assess the frequency of inappropriate blood cultures in the ICUs at Montefiore Medical Center based on an evidence-based guidance algorithm. Blood cultures were reviewed against this algorithm to determine their appropriateness. We calculated the prevalence of inappropriate blood culture and explored the reasons for these collected cultures. Results300 patients were randomly selected from an initial cohort of 3370 patients. 294 patients were included and of these, 167 patients had at least 1 blood culture drawn. 125 patients had one or more inappropriate blood culture. 61.4% of blood cultures drawn were assessed to be inappropriate. The most common reason for inappropriate cultures was a culture drawn as a result of isolated fever or leukocytosis. ConclusionIn a cohort of critically-ill patients, inappropriate blood cultures were common. The indications for blood cultures are often not evidence-based, and evidence-based algorithms to guide the collection of blood cultures may offer a way to decrease inappropriate culture orders.

Cerebral blood flow pulsatility and cerebral artery stiffness acutely decrease during hemodialysis.

End-stage kidney disease (ESKD) is associated with increased arterial stiffness and cognitive impairment. Cognitive decline is accelerated in ESKD patients on hemodialysis and may result from repeatedly inappropriate cerebral blood flow (CBF). The aim of this study was to examine the acute effect of hemodialysis on pulsatile components of CBF and their relation to acute changes in arterial stiffness. In eight participants (age: 63 ± 18 years, men: 5), CBF was estimated using middle cerebral artery blood velocity (MCAv) assessed with transcranial Doppler ultrasound before, during, and after a single hemodialysis session. Brachial and central blood pressure, along with estimated aortic stiffness (eAoPWV) were measured using an oscillometric device. Arterial stiffness from heart to MCA was measured as the pulse arrival time (PAT) between electrocardiogram (ECG) and transcranial Doppler ultrasound waveforms (cerebral PAT). During hemodialysis, there was a significant reduction in mean MCAv (-3.2cm/s, p< 0.001), and systolic MCAv (-13.0cm/s, p< 0.001). While baseline eAoPWV (9.25 ± 0.80 m/s) did not significantly change during hemodialysis, cerebral PAT increased significantly (+0.027 , p< 0.001) and was associated with reduced pulsatile components of MCAv. This study shows that hemodialysis acutely reduces stiffness of arteries perfusing the brain along with pulsatile components of blood velocity.

An Overview of Complete Blood Count Sample Rejection Rates in a Clinical Hematology Laboratory Due to Various Preanalytical Errors.

Introduction The Chughtai Laboratory collects blood samples for complete blood counts from various hospitals, emergency departments, ICUs, and through home sampling servicesall across the country. The preanalytical phase isan integral componentof laboratory medicine. A laboratory report has a key role in patient treatment and the clinician's decision in the management of the disease. Preanalytical errors are most frequently caused by the absence of a sample and/or inappropriate understanding of a test request, mislabeling, contamination from the sampling site, hemolyzed, clotted, insufficient samples, storage issues, and inappropriate blood to anticoagulant proportion or inappropriate choice of anticoagulant. Objective To identify the cause ofrejection rates ofthe complete blood countsamples and reduce the rejection rates by improving the accuracy of the results and loweringpre-analytical errors. Methods This cross-sectional study was done in the Hematology Department of Chughtai Laboratory's head office in Lahore between 19-06-2021 and 19-10-2021. Simple random sampling was applied to collect the data. About 3 ml of each blood sample was received in an ethylenediaminetetraacetic acid (EDTA) vial, inspected visually, run on Sysmex XN-9000 (Sysmex Corporation,Kobe, Hyogo, Japan), and was reviewed on peripheral smears. Results Out of 231,008 blood samples, 11,897 (5.15%) samples were rejected. The most common pre-analytical mistake was storage issues due to transportation delay (19.45%) followed by wrong medical records (19.16%), diluted samples (16.35%), incorrect tubes (16.01%), hemolyzed samples (15.13%), unlabeled samples (10.01%), and clotted sample (3.88%). Conclusion In the hematology department, the total rejection rate observed during the study period was 5.15%. Recognition of preanalytical errors and avoiding them will help uslower the sample rejection rateand raise the overall quality of laboratory management.

User-Centered Design to Reduce Inappropriate Blood Transfusion Orders

To improve blood transfusion practices, we applied user-centered design (UCD) to evaluate potential changes to blood transfusion orders. The aim of the study is to build effective transfusion orders with different designs to improve guideline adherence. We developed three different versions of transfusion orders that varied how information was presented to clinicians ordering blood transfusions. We engaged 14 clinicians (residents, advanced practice providers [APPs], and attending physicians) from different specialties. We used the think aloud technique and rapid qualitative analysis to generate themes to incorporate into our modified orders. Most end-users who participated in the semi-structured interviews preferred the interruptive alert design plus behavioral nudges (n = 8/14, 57%). The predominant rationale was that the in-line alert was not visually effective in capturing the end-user's attention, while the interruptive alert forced a brief stop in the workflow to consider the guidelines. All users supported the general improvements, though for different reasons, and as a result, the general improvements remained in the designs for the forthcoming trial. The user experience uncovered through the think aloud approach produced a clear and rich understanding of potentially confounding factors in the initial design of different intervention versions. Input from end-users guided the creation of all three designs so each was addressing human factors with parity, which ensured that the results of our study reflected differences in interruptive properties of the alerts and not differences in design.

Effectiveness of clinical decision support in controlling inappropriate red blood cell and platelet transfusions, speciality specific responses and behavioural change

BackgroundElectronic clinical decision support (CDS) within Electronic Health Records has been used to improve patient safety, including reducing unnecessary blood product transfusions. We assessed the effectiveness of CDS in controlling inappropriate red blood cell (RBC) and platelet transfusion in a large acute hospital and how speciality specific behaviours changed in response.MethodsWe used segmented linear regression of interrupted time series models to analyse the instantaneous and long term effect of introducing blood product electronic warnings to prescribers. We studied the impact on transfusions for patients in critical care (CC), haematology/oncology (HO) and elsewhere.ResultsIn non-CC or HO, there was significant and sustained decrease in the numbers of RBC transfusions after introduction of alerts. In CC the alerts reduced transfusions but this was not sustained, and in HO there was no impact on RBC transfusion. For platelet transfusions outside of CC and HO, the introduction of alerts stopped a rising trend of administration of platelets above recommended targets. In CC, alerts reduced platelet transfusions, but in HO alerts had little impact on clinician prescribing.ConclusionThe findings suggest that CDS can result in immediate change in user behaviour which is more obvious outside specialist settings of CC and HO. It is important that this is then sustained. In CC and HO, blood transfusion practices differ. CDS thus needs to take specific circumstances into account. In this case there are acceptable reasons to transfuse outside of these crude targets and CDS should take these into account.

Perioperative inappropriate red blood cell transfusions significantly increase total costs in elective surgical patients, representing an important economic burden for hospitals.

BackgroundRed blood cell (RBC) transfusions in surgical patients are associated with increased morbidity a hospital stay. However, little is known about how clinical and economic outcomes differ between appropriately and inappropriately transfused patients. We hypothesized that inappropriate RBC transfusions in elective surgical patients would significantly increase hospital cost. The aim of this study was to quantify the economic burden associated with inappropriate RBC transfusions.MethodsWe retrospectively included all adult patients admitted for elective non-cardiac surgery between January 2014 and March 2020. Patients were divided into three groups (not transfused, appropriately transfused and inappropriately transfused). The primary outcome was the excess in hospital cost in patients inappropriately transfused compared to non-transfused patients. Costs were calculated using a bottom–up approach and involving cost calculation on a granular level. According to international guidelines, transfusions were considered appropriate if administered with an ASA score of 1–2 and the last hemoglobin level measured before transfusion < 70 g/L, or with an ASA score ≥ 3 and the last hemoglobin level < 80 g/L. Cases where RBC transfusions were deemed necessary regardless of the Hb levels were reviewed by the patient blood management (PBM) board and classified accordingly. Secondary outcomes included total transfusion rate, transfusion index, and length of hospital stay. Statistical analysis was carried out by multivariable regression models.ResultsDuring the study period there were 54,922 consecutive surgical admissions, of these 1,997 received an RBC transfusion, with 1,125 considered inappropriate. The adjusted cost of each inappropriate RBC transfusions was estimated in United States dollars (USD) 9,779 (95% CI, 9,358 – 10,199; p < 0.001) and totaled USD 11,001,410 in our series. Inappropriately transfused patients stayed 1.6 times (95% CI, 1.5–1.6; p < 0.001) longer in hospital (10.6 days vs. 6.7 days) than non-transfused patients and a mean 2.35 RBC units per patient were administered.ConclusionInappropriate RBC transfusions in elective surgical patients seem to be common and may represent a significant economic burden. In our experience, inappropriate transfusions significantly increased hospital costs by an average of USD 9,779 compared to non-transfused patients. Through specific PBM policy, hospitals may improve cost-effectiveness of their elective surgical activity by lowering inappropriate transfusions.