A nurse is educating a pregnant client about the renal changes during pregnancy.
Which change is responsible for the increased urinary output?
Decreased glomerular filtration rate.
Increased tubular reabsorption.
Increased renal blood flow.
Increased plasma volume.
The Correct Answer is C
Increased renal blood flow is responsible for the increased urinary output during pregnancy.
This is because the renal plasma flow and glomerular filtration rate increase by 50% to 80% during pregnancy, resulting in more urine production.
Choice A is wrong because the glomerular filtration rate increases, not decreases, during pregnancy.
Choice B is wrong because the tubular reabsorption decreases, not increases, during pregnancy.
This is due to the increased levels of progesterone, which inhibit sodium reabsorption and cause diuresis.
Choice D is wrong because the increased plasma volume is a consequence, not a cause, of the increased renal blood flow.
The plasma volume expands by 30% to 50% during pregnancy to meet the increased metabolic demands of the mother and fetus.
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Related Questions
Correct Answer is B
Explanation
Back pain is a common symptom experienced due to increased muscle strain during pregnancy.
As the uterus grows and the center of gravity shifts, there is more pressure on the lower back muscles and ligaments.
This can cause pain, difficulty with balance, and reduced activity.
Choice A is wrong because leg cramps are not caused by muscle strain, but by other factors such as dehydration, electrolyte imbalance, or compression of blood vessels.
Choice C is wrong because pelvic pain is not a typical symptom of musculoskeletal changes during pregnancy.
Pelvic pain can be caused by other conditions such as urinary tract infection, preterm labor, or pelvic girdle pain.
Choice D is wrong because carpal tunnel syndrome is not a result of muscle strain, but of fluid retention and swelling that compresses the median nerve in the wrist.
This can cause numbness, tingling, or pain in the hand and fingers.
Correct Answer is D
Explanation
Peristalsis and uterine contractility would increase.
This is because progesterone is a hormone that relaxes the smooth muscles of the uterus and the gastrointestinal tract during pregnancy.
If progesterone were reduced or withdrawn, the uterus would contract more and peristalsis would increase, leading to possible preterm labor and digestive problems.
Choice A is wrong because insulin resistance would be decreased, not increased, by lower progesterone levels.
Progesterone increases insulin resistance during pregnancy to ensure adequate glucose supply for the fetus.
Choice B is wrong because sweat and sebaceous glands would decrease production, not increase, by lower progesterone levels.
Progesterone stimulates the activity of these glands during pregnancy to regulate body temperature and protect the skin from infections.
Choice C is wrong because pyrosis (heartburn) would decrease in frequency, not increase, by lower progesterone levels.
Progesterone relaxes the lower esophageal sphincter during pregnancy, allowing gastric acid to reflux into the esophagus and cause pyrosis.
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