Interpreting Haemoglobin

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    Question #1
    Which of these statements about Haemoglobin (Hb) are true?

    A: Hb is responsible for the delivery of oxygen from the lungs and carbon monoxide from the tissue to the lungsB: Each red blood cell contains 270-300 million Hb moleculesC: Hb molecules make up about 95% of the weight of any red blood cellD: (A) & (B)E: All of the above

    Question #2
    Haematocrit (Hct) refers to the volume % of RBCs in the blood.

    A: TrueB: False

    Question #3
    A haemoglobin molecule is composed of five globin chains, each of which contains a haeme molecule - five haeme molecules in all.

    A: TrueB: False

    Question #4
    The eight step process of haeme production takes place mainly in the hepatic and erythyroid cells.

    A: FalseB: True

    Question #5
    Which of the following are functions of Hb?

    A: Delivery of O2 from lungs to mitochondria for oxidative phosphorylationB: Transportation of CO2 from tissue back to the lungs for expirationC: Maintenance of acid-base equilibriumD: Nitric Acid metabolismE: Antioxidant activityF: All the above

    Question #6
    Commonly cited reference intervals of Hb for men falls between 130-180 g/L.

    A: FalseB: True

    Question #7
    Commonly cited reference intervals of Hb for women falls between 120-160 g/L.

    A: TrueB: False

    Question #8
    Hb concentrations between 140-150 g/L for men and 133 – 140 g/L for women are likely to result in better overall health outcomes.

    A: TrueB: False

    Question #9
    It is important for clinicians to remember that Hb concentrations do not have to be below the reference range to indicate iron deficiency. In fact, low-normal and low levels may actually be one of the few indicators of late-stage iron deficiency, as this condition frequently presents without symptoms.

    A: TrueB: False

    Question #10
    Anaemia is present in 50% of all pregnant women.

    A: TrueB: False

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