Abstract
Objectives: Abdominal pain occupies most of the emergency department admissions. This entity leads to research various markers for the early detection of causes in patients presenting with abdominal pain. There is limited data about collaborations between lactate levels and vital signs at admission in abdominal pain.
 Materials and Methods: Patients aged 18 years and older, who had presented with abdominal pain to the Emergency Department, in total 102 patients, were included to the study. The patients’ demographics, vital signs, abdominal physical examination findings, diagnosis and outcomes of patients were recorded. The 1 ml venous blood samples were collected by blood gase injectors from the patients and lactate levels were analyzed.
 Results: Female patients’ percentile was 68,6% and mean age was 39 years old. The systolic blood pressure levels were normal in 45 patients, low in 26% patients and high in 29% patients. The seventy-six of the patients had normal pulse rate and 26 of them were tachycardic. Most common diagnosis was non-specific abdominal pain (37,25%) and the least common was ovarian torsion/intracystic hemorrhage (0,98%) and obstruction due to hernia (0,98%). There was no statistically significant relation between lactate level and pulse rate (p=0,637), systolic blood pressure (p=0,052), diastolic blood pressure (p=0,095), respiratory rate (p=0,527), body temperature (p=0,040) and oxygen saturation (p=0,905). Similarly, no significant association occurred between lactate levels and diagnosis and outcomes.
 Conclusion: Further studies including more patients groups have to be done in order to attain more reliable data about this topic.
Highlights
The causes of abdominal pain constitute a spectrum that ranges from acute and life-threatening emergencies
No significant association occurred between lactate levels and diagnosis and outcomes
We evaluated and recorded—at the time of first presentation to the Emergency Department (ED)— blood pressure (BP), heart rate (HR), respiratory rate (RR), body temperature, and oxygen saturation (SaO2)
Summary
The causes of abdominal pain constitute a spectrum that ranges from acute and life-threatening emergencies. It can be challenging to diagnose and treat the underlying causes of abdominal pain, and advanced examinations are often necessary. In this regard, clinicians sometimes perform unnecessary procedures when they cannot otherwise find the cause of the pain. Investigators are still reviewing the hospitalization criteria, as well as various markers, for patients presenting with abdominal pain. In the present study we used a lactate test, which can be performed using a venous blood gas injector. We hypothesized that If the lactate level is above the established laboratory threshold, the treatment will be started immediately without detailed diagnostic procedures
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