When a client reports using cocaine during her current pregnancy, which laboratory study should a nurse anticipate?

Urine estriol levels.

Serum bilirubin levels.

Urine toxicology studies.

Lecithin-sphingomyelin ratio.

Answer and Explanation

The Correct Answer is C

This is because urine toxicology studies can detect the presence of cocaine and other drugs in the body of the pregnant woman and her unborn baby. Cocaine use during pregnancy can have serious consequences for both the mother and the baby, such as high blood pressure, premature labor, low birth weight, and developmental problems.

Choice A is wrong because urine estriol levels are used to measure the activity of the placenta and the fetal adrenal glands. They are not related to cocaine use.

Choice B is wrong because serum bilirubin levels are used to assess the liver function and the risk of jaundice in newborns. They are not related to cocaine use.

Choice D is wrong because lecithin-sphingomyelin ratio is used to evaluate the fetal lung maturity and the risk of respiratory distress syndrome. It is not related to cocaine use.

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Correct Answer is A

Explanation

The correct answer is choice A: “The discharge that you are describing is normal at this time.” This is because the client is experiencing lochia serosa, which is a brownish discharge that occurs from about day 4 to day 10 postpartum.

Lochia serosa is composed of old blood, serum, leukocytes, and tissue debris.

It indicates that the placental site is healing and the uterus is involuting.

Choice B is wrong because fever is a sign of infection, not normal lochia.

Choice C is wrong because ovulation usually does not resume until 6 weeks postpartum for nonbreastfeeding women and later for breastfeeding women.

Choice D is wrong because iron supplements do not affect lochia color or amount.

A. What is the nurse’s best response to the client’s question as to why the amniocentesis test is being done?. B. “To determine fetal lung maturity.”. C. “To assess the degree of fetal renal function.”. D. “To test the amniotic fluid glucose level.”. E. “To detect the presence of fetal congenital anomalies.”.

Correct Answer is A

Explanation

The correct answer is choice A.“To determine fetal lung maturity.” An amniocentesis at 37 weeks of gestation can be done to measure the lecithin/sphingomyelin (L/S) ratio in the amniotic fluid, which indicates the level of surfactant production and the readiness of the fetal lungs for breathing.A low L/S ratio can indicate fetal compromise due to gestational diabetes.

Choice B is wrong because fetal renal function is not assessed by amniocentesis, but by ultrasound or biophysical profile.

Choice C is wrong because amniotic fluid glucose level is not a reliable indicator of fetal well-being or gestational diabetes control.

Choice D is wrong because congenital anomalies are usually detected earlier in pregnancy by ultrasound, maternal serum screening, or chorionic villus sampling.

Normal ranges for L/S ratio are 2:1 or higher for term fetuses and 1.5:1 or higher for preterm fetuses.

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When a client reports using cocaine during her current pregnancy, which laboratory study should a nurse anticipate?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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