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 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.