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Questions and Answers
What is the main reason for the increase in blood volume and cardiac output during pregnancy?
What is the main reason for the increase in blood volume and cardiac output during pregnancy?
- To meet the demands of the enlarged uterus (correct)
- To prevent maternal hypotension
- To facilitate nutrient absorption
- To support fetal lung development
When do the cardiovascular changes peak during pregnancy?
When do the cardiovascular changes peak during pregnancy?
- 20 to 24 weeks (correct)
- At term
- Third trimester
- First trimester
What is a particular period of high risk for cardiac decompensation during pregnancy?
What is a particular period of high risk for cardiac decompensation during pregnancy?
- During labor
- When blood volume peaks at the end of the 2nd trimester (correct)
- Postpartum fluid shifts
- All throughout the first trimester
What are normal clinical findings that can mimic heart disease in pregnancy?
What are normal clinical findings that can mimic heart disease in pregnancy?
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What are potential risk factors for the development of heart failure during pregnancy?
What are potential risk factors for the development of heart failure during pregnancy?
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Study Notes
Cardiovascular Changes in Pregnancy
- The main reason for the increase in blood volume and cardiac output during pregnancy is to meet the increased oxygen and nutrient demands of the fetus and maternal tissues.
Timeline of Cardiovascular Changes
- Cardiovascular changes peak during the 28th to 32nd week of gestation.
High-Risk Period for Cardiac Decompensation
- A particular period of high risk for cardiac decompensation during pregnancy is immediately after delivery, due to the sudden increase in preload and afterload.
Normal Clinical Findings in Pregnancy
- Normal clinical findings that can mimic heart disease in pregnancy include:
- Increased heart rate
- Systolic ejection murmurs
- Diastolic murmurs
- pedal edema
- Dyspnea
Risk Factors for Heart Failure
- Potential risk factors for the development of heart failure during pregnancy include:
- Multiple gestations
- Pre-existing heart disease
- Hypertension
- Anemia
- Thyrotoxicosis
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Description
Test your knowledge about the cardiovascular physiological changes that occur during pregnancy. Learn about the increase in blood volume and cardiac output to meet the demands of pregnancy and protect the mother and fetus.
