A patient is in preterm labor at 30 weeks gestation.
Her OB orders antenatal steroids.
The order is for the nurse to administer betamethasone IM and to repeat the dose after 2 hours.
Betamethasone is available as 4mg/mL in 10 mL vials.
How many mL will the nurse draw up in the syringe for each dose?
0.5 mL
1 mL
1.5 mL
3 mL
The Correct Answer is D
Step 1 is to calculate the volume of betamethasone to be drawn up for each dose. The order is to administer betamethasone IM and to repeat the dose after 2 hours. Betamethasone is available as 4mg/mL. Therefore, to administer a dose of 12mg, the nurse would need to draw up 12mg ÷ 4mg/mL = 3mL for each dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
A baseline BP of 140/85 mmHg is considered high, but a current BP of 129/80 mmHg is within the normal range. Therefore, this would not typically indicate a risk for pregnancy-induced hypertension.
Choice B rationale
A significant increase in blood pressure from a baseline of 110/70 mmHg to a current BP of 145/85 mmHg could indicate a risk for pregnancy-induced hypertension.
Choice C rationale
A slight increase in blood pressure from a baseline of 120/80 mmHg to a current BP of 126/85 mmHg would not typically indicate a risk for pregnancy-induced hypertension.
Choice D rationale
An increase in blood pressure from a baseline of 110/60 mmHg to a current BP of 120/63 mmHg would not typically indicate a risk for pregnancy-induced hypertension.
Correct Answer is C
Explanation
Step 1: The order is to administer Morphine 5mg IV once immediately. The available concentration is 2.5 mg/mL. To find out how many mL of morphine the nurse should prepare for administration, we need to divide the ordered dose by the available concentration.
Step 2: Calculation: 5 mg ÷ 2.5 mg/mL = 2 mL So, the nurse should prepare 2 mL of morphine for administration.
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