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Hormonal Changes During Pregnancy

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Questions and Answers

During pregnancy, which of the following is true about renal physiology?

GFR remains the same throughout pregnancy

Renal plasma flow decreases due to a decrease in plasma volume

Increased GFR leads to an increase in the filtered load of glucose (correct)

Creatinine clearance decreases due to an increase in plasma volume

What is the effect of increased Thyroid binding globulin (TBG) in pregnant women?

Total T3 and T4 levels decrease due to increased TBG

Total T3 and T4 levels remain the same despite increased TBG

Free T3 and T4 levels decrease due to increased TBG

Free T3 and T4 levels remain the same despite increased TBG (correct)

What happens to levothyroxine requirements during pregnancy in patients with hypothyroidism?

Levothyroxine requirements remain the same during pregnancy

Levothyroxine requirements decrease during pregnancy

Levothyroxine requirements increase during pregnancy (correct)

Levothyroxine is contraindicated during pregnancy

What is the primary effect of oxytocin in lactation?

Promotion of uterine contractions Signup and view all the answers

What is a retrospective diagnosis of menopause based on?

12 months of amenorrhea Signup and view all the answers

Which hormone shows a progressive rise during pregnancy and is responsible for the relaxation of smooth muscles including the bladder?

Progesterone Signup and view all the answers

What leads to the physiological adaptation of hypercoagulability during pregnancy to decrease blood loss at delivery?

Increased clotting factors Signup and view all the answers

Which hormone peaks in the first trimester but continues to be secreted throughout pregnancy?

hCG Signup and view all the answers

Which factor contributes to the decrease in blood pressure in the first 24 weeks of pregnancy?

Progesterone-mediated smooth muscle relaxation Signup and view all the answers

Which hormone demonstrates the greatest plasma levels in the latter part of pregnancy and is responsible for various metabolic effects?

hPL Signup and view all the answers