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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

Blue coloring of the hands and feet in an 8-hour-old newborn (acrocyanosis) is a common, benign finding as the newborn’s circulatory system adjusts post-birth. It does not require immediate intervention.

Choice B rationale

Small raised pearly spots on the nose (milia) are harmless and common in newborns. They do not necessitate any intervention.

Choice C rationale

An apical heart rate of 140 bpm is within the normal range for newborns and does not require intervention.

Choice D rationale

Nasal flaring and grunting are signs of respiratory distress in a newborn. This condition demands immediate intervention to ensure the newborn’s airway is clear and breathing is adequately supported.

Correct Answer is C

Explanation

Choice A rationale

A 10% to 15% increase in blood volume during pregnancy is too low compared to the average physiological changes that occur.

Choice B rationale

A 20% to 30% increase in blood volume is also below the expected range of increase during pregnancy.

Choice C rationale

Blood volume typically increases by 40% to 50% during pregnancy. This significant increase supports the demands of the growing fetus and placenta and prepares the mother's body for the blood loss that occurs during delivery.

Choice D rationale

A 65% to 75% increase is an overestimate. Such an extensive increase would be abnormal and is not typical in healthy pregnancies.

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