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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 A

Explanation

Choice A rationale

Blood pressure should be addressed first due to the client’s elevated BP (144/92 mmHg), which is a potential sign of complications such as preeclampsia.

Choice B rationale

Pulse of 99 bpm is slightly elevated but not immediately concerning compared to the high BP.

Choice C rationale

Respirations are within normal range (17/min) and do not require immediate intervention.

Choice D rationale

Temperature of 100.4°F (38.0°C) is slightly elevated but not as critical as the high BP.

Correct Answer is C

Explanation

Choice A rationale

Placenta formation begins shortly after implantation, but it continues to develop throughout the first trimester and into the early second trimester, making it less precise to attribute the

first 8 weeks solely to this process.

Choice B rationale

Fertilization occurs within the first week after ovulation, marking the beginning of pregnancy, but it is a singular event that happens prior to the developmental processes vulnerable to teratogens.

Choice C rationale

Organogenesis is the critical period during which the major organs and structures of the fetus form, typically occurring between the third and eighth weeks of gestation. This is the

time when the fetus is most susceptible to the effects of teratogens, which can cause congenital anomalies.

Choice D rationale

Implantation occurs approximately 6-10 days after fertilization, embedding the blastocyst into the uterine lining. While crucial, it is not the primary period when teratogenic effects are

most significant, as this happens during organogenesis.

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