KROK 1 Stomatology 2015 – Question 195 · KROK (Dentistry)
As a result of a rapid change from horizontal to vertical body position a 16-year-old girl lost consciousness. What is the reason for it?
- A. Heart rate decrease
- B. Arterial pressure rise
- C. Decreased venous return
- D. Increased venous return
- E. -
Hint
Consider where gravity redistributes blood when a person stands up abruptly and how this affects cardiac filling.
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