Question 205 · LEK · Cardiovascular system
Adaptive changes in the circulatory system of a pregnant woman consist of:
1) increase in the circulating blood volume, including 45% of the plasma volume and 20% of the erythrocyte mass, with a greater increase of the circulating blood volume in obese women than in slim women;
2) increase in cardiac output;
3) acceleration of heart rate by 10-15 beats per minute;
4) increased peripheral arterial resistance by 20%;
5) increase in central venous pressure.
The correct answer is:
2) increase in cardiac output;
3) acceleration of heart rate by 10-15 beats per minute;
4) increased peripheral arterial resistance by 20%;
5) increase in central venous pressure.
The correct answer is:
- A. 1,5.
- B. 1,2,3.
- C. 1,3,4.
- D. only 1.
- E. 4,5.
Hint
Pregnancy is a high-flow, low-resistance circulatory state; check which statements fit that picture.
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