KROK 1 2020 – Question 37 · KROK (Medicine) · Physiology

Clinical blood testing is recommended to be done in the morning and on an empty stomach. What change in the blood composition is likely if a blood sample was obtained after a meal?

  1. A. Increased number of plasma proteins
  2. B. Decreased platelet count
  3. C. Increased leukocyte count
  4. D. Increased erythrocyte count
  5. E. Decreased erythrocyte count
Hint

Consider which blood component is physiologically mobilised by digestion, and why a fasting morning sample is used as the standard reference.

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