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CLS Hematology and Coagulation Flashcards

6 cards from real CLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which blood cell type is primarily responsible for oxygen transport?

    Answer: Erythrocytes

    Erythrocytes contain hemoglobin, which binds and carries oxygen to tissues throughout the body.

  2. What is the normal reference range for hemoglobin in adult males?

    Answer: 13.5–17.5 g/dL

    The normal hemoglobin range for adult males is 13.5–17.5 g/dL, higher than the female reference range.

  3. Which coagulation pathway is initiated by tissue factor (Factor III)?

    Answer: Extrinsic pathway

    The extrinsic pathway is activated by tissue factor released from damaged tissue, which complexes with Factor VII.

  4. The Prothrombin Time (PT) test primarily evaluates which coagulation pathway(s)?

    Answer: Extrinsic and common pathways

    PT evaluates the extrinsic and common pathways by measuring activity of Factors II, V, VII, X, and fibrinogen.

  5. Which white blood cell type is normally most numerous on a peripheral blood smear?

    Answer: Neutrophils

    Neutrophils typically comprise 50–70% of the total white blood cell count in healthy adults.

  6. What does Mean Platelet Volume (MPV) measure on a CBC?

    Answer: Average platelet size

    MPV measures the average size of platelets and reflects platelet production and turnover.