KROK 1 2010 – Question 125 · KROK (Medicine) · Physiology
A man weighs 80 kg, after long physical activity his circulating blood volume is reduced down to 5,4 l, hematocrit makes up 50%, whole blood protein is 80 g/l. These blood characteristics are determined first of all by:
- A. Increased diuresis
- B. Increased circulating blood volume
- C. Water loss with sweat
- D. Increased protein concentration in plasm
- E. Increased number of erythrocytes
Hint
Blood volume falls while hematocrit and protein concentration both rise; ask whether the cell and protein amounts truly changed or only their concentration, and what prolonged exercise does to body fluids.
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