Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
What is the main function of hemoglobin in the blood?
✔✔To carry oxygen from the lungs to body tissues and return carbon dioxide to the lungs
What is the normal pH range of arterial blood?
✔✔7.35–7.45
Which organ produces most of the clotting factors?
✔✔The liver
What is the function of platelets in hemostasis?
✔✔To form a temporary plug at sites of vascular injury
What is the primary purpose of a complete blood count (CBC)?
✔✔To evaluate overall health and detect disorders such as anemia, infection, and leukemia
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,What type of white blood cell is primarily involved in allergic reactions?
✔✔Eosinophils
Which blood test is used to monitor anticoagulant therapy?
✔✔Prothrombin time (PT) or INR
What is the normal range for adult fasting blood glucose?
✔✔70–99 mg/dL
Which anticoagulant is commonly used for plasma collection in the lab?
✔✔Sodium citrate
What is the function of the kidneys in laboratory testing?
✔✔To filter blood, remove waste, and regulate electrolytes and fluid balance
Which tube is used for serum collection in blood tests?
✔✔Red-top tube without anticoagulant
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,What is the primary function of neutrophils?
✔✔To fight bacterial infections through phagocytosis
Which test is used to screen for diabetes mellitus?
✔✔Hemoglobin A1c
Which organ produces insulin?
✔✔The pancreas
What is the purpose of a blood culture?
✔✔To detect the presence of bacteria or fungi in the bloodstream
Which plasma protein is responsible for maintaining osmotic pressure?
✔✔Albumin
What is the correct procedure for collecting a capillary blood sample?
✔✔Clean site, puncture with a lancet, wipe the first drop, and collect blood into microtube
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, Which tube additive prevents blood from clotting for hematology testing?
✔✔EDTA
Which laboratory test is used to evaluate kidney function?
✔✔Creatinine and blood urea nitrogen (BUN)
What is the function of lymphocytes in the immune system?
✔✔To produce antibodies and mediate cellular immunity
Which test is used to monitor long-term glucose control?
✔✔Hemoglobin A1c
Which organ is primarily responsible for producing prothrombin?
✔✔The liver
What is the normal range of adult red blood cell (RBC) count?
✔✔4.2–5.4 million/µL for females, 4.7–6.1 million/µL for males
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