What is the current American College of Obstetricians and Gynecologists (ACOG) guideline for total weekly exercise duration for healthy pregnant women? 

45 min

100 min

150 min

What is recommended regarding vigorous-intensity aerobic exercise for women who were active before pregnancy? 

It can be continued during pregnancy and the postpartum period

This type of activity should be ceased upon becoming pregnant

A gradual decrease to moderate activities is most appropriate

How soon after becoming pregnant do changes to the cardiovascular system begin?

8 week

5 weeks

3 weeks

 By how much does resting cardiac output increase during pregnancy? 

50%

20%

10%

What leads to the increase in fetal heart rate during maternal exercise?

Increased blood pressure

Decreased blood flow

Plasma volume expansion

What is the difference between fetal temperature and maternal temperature? 

Maternal temperature is higher than fetal temperature

Fetal temperature is higher than maternal temperature

Fetal temperature is lower at rest but higher during exercise

What is the recommended maximum increase in maternal core temperature from the baseline?

0.5°C

1.0°C

2.0°C

During which part of pregnancy is the threat of increased fetal temperature most concerning? 

Late

Middle

Early

What is the effect of short-term exercise on plasma glucose? 

Increases

Decreases

Unchanged

Above what percentage of maximal maternal heart rate is exercise contraindicated?

75%

80%

90%