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)
Do not use a trailing zero)
Step 2 is: 12 รท 6 = 2 ml. Answer: 2 ml
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 B
Explanation
Choice A rationale
The fetal heartbeat cannot typically be heard via Doppler as early as 4 weeks of pregnancy. At this stage, the heart is still developing, and it is too soon for external detection with a Doppler device.
Choice B rationale
The fetal heartbeat is generally detectable by an external Doppler device around 10-12 weeks of pregnancy. This is the period when the heartbeat is strong enough to be picked up by the device.
Choice C rationale
Feeling the baby move, known as "quickening," typically occurs around 18-24 weeks of pregnancy, not 6 weeks. This sensation is different from hearing the heartbeat.
Choice D rationale
While the heart begins to form around week 5, it is not detectable by Doppler at 6 weeks. The technology does not have the sensitivity to detect such an early heartbeat externally.
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.