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A nurse is preparing to administer betamethasone 12mg IM to a client at 32 weeks gestation at risk for preterm delivery.
Betamethasone is available as 6mg/ml. How many ml will the nurse prepare for injection? (Use a leading zero, if it applies. Do not use a trailing zero)

A.

Do not use a trailing zero)

B.

Step 2 is: 12 รท 6 = 2 ml. Answer: 2 ml

Answer and Explanation

The Correct Answer is A

Step 1 is: 12 mg ÷ 6 mg/ml.

Step 2 is: 12 ÷ 6 = 2 ml. Answer: 2 ml


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Correct Answer is D

Explanation

Choice A rationale

Administering the rubella vaccine during pregnancy, including the third trimester, is contraindicated due to the risk of live vaccine transmission to the fetus. It is not recommended at any stage of pregnancy.

Choice B rationale

Advising the client to get the vaccine during her next pregnancy attempt is partly correct but lacks the immediacy needed to ensure she is immune before the next pregnancy. The vaccine should be given postpartum.

Choice C rationale

Administering the vaccine immediately during pregnancy is contraindicated due to potential risks to the fetus. Rubella vaccines contain live virus, which can cause fetal harm if given during pregnancy.

Choice D rationale

It is safest to administer the rubella vaccine postpartum, prior to hospital discharge, to ensure the client has immunity before any future pregnancies. This timing prevents any risk to the current fetus and ensures future fetal protection. .

Correct Answer is ["A","B","C"]

Explanation

Choice A: Give betamethasone 12 mg IM now and repeat in 24 hr.

Rationale: Betamethasone is administered to accelerate fetal lung maturity in cases of preterm labor. Given the client's gestational age of 31 weeks, this intervention is appropriate to help reduce the risk of respiratory distress syndrome in the newborn.

Choice B: Begin loading dose of magnesium sulfate 9 g over 30 min.

Rationale: Magnesium sulfate is used for neuroprotection of the fetus in preterm labor to reduce the risk of cerebral palsy. The loading dose is typically given to achieve therapeutic levels quickly.

Choice C: Position the client in a lateral position.

Rationale: Positioning the client in a lateral position helps improve uteroplacental blood flow and can reduce the intensity of contractions, which is beneficial in managing preterm labor.

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