The Nurse Should Be Cognizant of Which Postpartum Physiologic Alteration

The nurse should be cognizant of which postpartum physiologic alteration?

A) Cardiac output,pulse rate,and stroke volume all return to prepregnancy normal values within 48 hours of childbirth.
B) Respiratory function returns to nonpregnant levels by 6 to 8 weeks after childbirth.
C) Lowered white blood cell count after pregnancy can lead to false-positive results on tests for infections.
D) Hypercoagulable state protects the new mother from thromboembolism,especially after a cesarean birth.