Abstract
Introduction: This study was done to measure the Hemoglobin levels, Red Blood Cells count, and Red Blood cell parameters: MCV, MCH, MCHC, RDW, and Hematocrit of the apparently healthy blood donors attending the National Blood Bank of Eritrea.
 Methods: Blood samples were collected from the peripheral veins into the (EDTA)-tube and examined for Red Blood Cell count (RBC), hemoglobin (Hb), Hematocrit (%), mean cell volume (MCV), mean cell hemoglobin (MCH), mean cell hemoglobin concentration (MCHC), and red cell distribution width (RDW), analyzed and measured by automated blood analyzer.
 Results: The mean Hemoglobin level was 14.428±1.485 g/dl, RBCs count was 4.744±0.482×1012/L, HCT was 41.929 ±3.75%, Red cell distribution width (RDW) mean was 13.571±0.744%, MCV was 88.582± 4.0558 Fimtoliter, MCH was 30.470±2.188 picogram, and MCHC was a mean of 34.393±1.347g/dl. The difference between males and females in MCV and MCHC was significant in favor of female donors. And a weak positive correlation had been found between the weight and age of donors and the Hemoglobin level. All the measured values were found to be within the global referenced ranges.
 Conclusion: Hemoglobin, RBCs count and RBCs indices of apparently healthy Eritrean blood donors were measured for reference, and all values were found within normal reference ranges.
Highlights
The red blood cells (RBCs) are a type of cells primarily composed of the quaternary protein hemoglobin (Hb) that serves as the carrier of oxygen to the tissues, carbonHow to cite this article: Faris M
The Hb level was14.428 ± 1.485g/dl; RBCs count 4.744 ± 0.482×1012/L; HCT 41.929 ± 3.75%; red cell distribution width (RDW) mean 13.571 ± 0.744%; mean corpuscular volume (MCV) 88.582 ± 4.0558 fl; mean corpuscular hemoglobin (MCH) 30.470 ± 2.188 pg; and MCHC mean 34.393 ± 1.347 g/dl (See Table 1).The Differences between female(n=205) and male (n=405) donors in MCV and MCHC were found to be significantly higher in female donors when compared to males
The differences in the RBCs counts, Hb levels, and hematocrits were found to be insignificant (Table 2).A positive correlation was observed between the weight and age of the apparently healthy blood donors with RBCs count, and a correlation between weight and age with Hb level (Table 3)
Summary
The red blood cells (RBCs) are a type of cells primarily composed of the quaternary protein hemoglobin (Hb) that serves as the carrier of oxygen to the tissues, carbon. Abbadi (2020) “Hematological Parameters in Apparently Healthy Eritrean Blood Donors at the National Blood Transfusion Center, Asmara, Eritrea,” Page 290. An adult human body has an estimated 2–3 ×1013 RBCs in total, with males having the higher average count due to physiological and hormonal causes [4,5]. Blood transfusion is an essential component of quality healthcare service package. Sufficient and safe blood donation/transfusion service is an essential component of the healthcare system of a nation. Those who are selected for blood donation should be from a group of population with low risk of infection and prevalence of infectious diseases. To the best of the researchers’ knowledge, so far, no study has been conducted on the Hb level and RBC indices in apparently healthy Eritrean blood donors. This study will help in establishing the reference ranges of Hb level and erythrocytes count in Eritrean people and to correlate them with genders and ages of the participants
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