What is the specific gravity of concentrated urine in postpartum hemorrhage?
> 1.030
< 1.030
> 1.020
< 1.020
The Correct Answer is A
The specific gravity of urine is a measure of the concentration of solutes in urine.
It reflects the ability of the kidneys to regulate water balance and excrete waste products. The normal range for urine specific gravity is 1.005 to 1.030.
In postpartum hemorrhage, there is a loss of blood volume that leads to decreased blood pressure and reduced perfusion of the kidneys. The kidneys respond by conserving water and producing concentrated urine with a high specific gravity, usually greater than 1.030.
Choice B is wrong because a urine specific gravity lower than 1.030 indicates a dilute urine that is not consistent with postpartum hemorrhage.
Choice C is wrong because a urine specific gravity greater than 1.020 is still within the normal range and does not reflect the degree of water conservation that occurs in postpartum hemorrhage.
Choice D is wrong because a urine specific gravity lower than 1.020 indicates a very dilute urine that suggests excessive fluid intake, diabetes insipidus, or kidney failure.
These conditions are not associated with postpartum hemorrhage.
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Related Questions
Correct Answer is A
Explanation
Heavy vaginal bleeding in normal delivery that may indicate postpartum hemorrhage is more than 500 mL.
Postpartum hemorrhage (PPH) is a serious condition that can lead to death if not treated promptly.It is caused by the uterus not contracting properly or by retained placenta fragments or damage to the reproductive organs.
Choice B is wrong because more than 1000 mL of blood loss is the definition of PPH after a cesarean delivery, not a vaginal delivery.
Choice C is wrong because less than 500 mL of blood loss is normal after a vaginal delivery and does not indicate PPH.
Choice D is wrong because less than 1000 mL of blood loss is normal after a cesarean delivery and does not indicate PPH.
Correct Answer is A
Explanation
The specific gravity of urine is a measure of the concentration of solutes in urine.
It reflects the ability of the kidneys to regulate water balance and excrete waste products.The normal range for urine specific gravity is1.005 to 1.030.
In postpartum hemorrhage, there is a loss of blood volume that leads to decreased blood pressure and reduced perfusion of the kidneys.The kidneys respond by conserving water and producing concentrated urine with a high specific gravity, usuallygreater than 1.030.
ChoiceBis wrong because a urine specific gravity lower than 1.030 indicates a dilute urine that is not consistent with postpartum hemorrhage.
ChoiceCis wrong because a urine specific gravity greater than 1.020 is still within the normal range and does not reflect the degree of water conservation that occurs in postpartum hemorrhage.
ChoiceDis wrong because a urine specific gravity lower than 1.020 indicates a very dilute urine that suggests excessive fluid intake, diabetes insipidus, or kidney failure.
These conditions are not associated with postpartum hemorrhage.
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