A nurse is preparing to administer nitroprusside 1 mcg/kg/min to a newborn who weighs 8 lb 4 oz. Available is nitroprusside 50 mg in 0.9% sodium chloride.
How many mL/hr? (Round the answer to the nearest tenth.
Use a leading zero if it applies.)
The Correct Answer is ["1.1"]
Step 1: Convert the weight from pounds and ounces to kilograms. 8 lb 4 oz = 8.25 lb 8.25 lb ÷ 2.2 = 3.75 kg Step 2: Calculate the dose per minute. 1 mcg/kg/min × 3.75 kg = 3.75 mcg/min Step 3: Calculate the total dose per hour. 3.75 mcg/min × 60 min/hr = 225 mcg/hr Step 4: Determine the concentration of the solution. 50 mg = 50,000 mcg 50,000 mcg = 250 mL 225 mcg = (225 mcg × 250 mL) ÷ 50,000 mcg = 1.125 mL/hr Step 5: Round to the nearest tenth. 1.125 mL/hr ≈ 1.1 mL/hr The IV pump should be set to deliver 1.1 mL/hr.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Step 1 is… 10 mg ÷ (5 mg/mL) = 2 mL The final calculated answer is 2 mL.
Correct Answer is A
Explanation
Choice A rationale
Losartan is an angiotensin II receptor blocker (ARB) used to treat high blood pressure. However, it is contraindicated during pregnancy and postpartum due to potential harm to the fetus and newborn. It can cause fetal toxicity, including injury and death to the developing fetus. Therefore, the nurse should clarify this prescription with the provider.
Choice B rationale
Ferrous fumarate is an iron supplement used to treat or prevent iron deficiency anemia, which is common postpartum. It is generally safe and effective for postpartum women, helping to replenish iron stores depleted during pregnancy and childbirth.
Choice C rationale
Docusate sodium is a stool softener used to treat constipation, which is common postpartum due to hormonal changes and the physical strain of childbirth. It is safe for use during the postpartum period and helps ease bowel movements.
Choice D rationale
Prochlorperazine is an antiemetic used to treat nausea and vomiting. It is generally safe for use postpartum, especially when prescribed on an as-needed basis. However, it should be used with caution and under medical supervision.
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