Concerning the postpartum changes and developments in a woman's cardiovascular system, nurses should be aware that:
1. cardiac output, pulse rate, and stroke volume all return to prepregnancy normal within a few hours of childbirth.
2. respiratory function returns to nonpregnant levels by 6 to 8 weeks after birth.
3. lowered white blood count after pregnancy can lead to false positives when test-ing for infections.
4. a hypercoagulable state protects the new mother from thromboembolism, espe-cially after a cesarean birth.
2
1. Incorrect. Stroke volume increases, and cardiac output remains high for a couple days. Heart rate and blood pressure, however, return to normal quickly.
2. Correct. Respirations should decrease to within the woman's normal prepregnancy range by 6 to 8 weeks after birth.
3. Incorrect. Leukocytosis increases 10 to 12 days after childbirth, which helps obscure the diagnosis of acute infections (false negatives).
4. Incorrect. The hypercoagulable state increases the risks of thromboembolism, especially after a cesarean birth.
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