A patient weighing 132 lb is prescribed lorazepam 44 mcg/kg IV to be administered 20 minutes before a scheduled procedure.

The medication is available in a 2 mg/mL vial.

How many mL should the nurse administer? Round off to 2 d.p.

(This is a medical math nd does not require options.)

Answer and Explanation

The Correct Answer is ["1.32"]

Step 1 is to convert the patient’s weight from pounds to kilograms. There are approximately 2.2046 pounds in 1 kilogram. So, the patient’s weight in kilograms is 132 lb ÷ 2.2046 = 59.87 kg.

Step 2 is to calculate the total dose of lorazepam the patient should receive. The prescribed dose is 44 mcg/kg. So, the total dose in micrograms is 44 mcg/kg × 59.87 kg = 2634.28 mcg.

Step 3 is to convert the total dose from micrograms to milligrams. There are 1000 micrograms in 1 milligram. So, the total dose in milligrams is 2634.28 mcg ÷ 1000 = 2.63428 mg.

Step 4 is to calculate the volume of lorazepam solution to administer. The concentration of the solution is 2 mg/mL. So, the volume in milliliters is 2.63428 mg ÷ 2 mg/mL = 1.31714 mL. Therefore, the nurse should administer approximately 1.32 mL of the lorazepam solution, rounding to the nearest hundredth as required.

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Free Nursing Study Resources

Correct Answer is C,A,D,B

Explanation

Step 1: Observe breathing patterns. Respiratory depression is a critical symptom of myxedema coma that requires immediate attention.

Step 2: Measure body temperature. Hypothermia is a common symptom of myxedema coma and can provide important information about the severity of the patient’s condition.

Step 3: Assess blood pressure. Hypotension can occur in myxedema coma and can indicate the severity of the patient’s condition.

Step 4: Palpate for pedal edema. While this can be a symptom of hypothyroidism, it is not typically a primary concern in a patient showing signs of myxedema coma.

A. Diarrhea and flatulence. B. Abdominal cramps. C. Altered taste. D. Muscle pain.

Correct Answer is D

Explanation

Choice A rationale

Diarrhea and flatulence are common side effects of lovastatin, but they are not typically serious enough to require immediate follow-up.

Choice B rationale

Abdominal cramps can occur with lovastatin use, but they are not usually a sign of a serious problem.

Choice C rationale

Altered taste is a less common side effect of lovastatin and is not typically a cause for immediate concern.

Choice D rationale

Muscle pain can be a sign of a rare but serious side effect of lovastatin called rhabdomyolysis. This condition involves the breakdown of muscle tissue, which can lead to kidney damage. Therefore, this symptom should be prioritized for immediate follow-up.

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A patient weighing 132 lb is prescribed lorazepam 44 mcg/kg IV to be administered 20 minutes before a scheduled procedure. The medication is available in a 2 mg/mL vial. How many mL should the nurse administer? Round off to 2 d.p. (This is a medical math nd does not require options.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient with primary hypothyroidism is showing early signs of myxedema coma. In what order should the nurse perform the following assessments? (Rank the first action at the top with the remainder in descending order.)

Correct Answer is C,A,D,B

Explanation

Which of the following symptoms reported by a patient taking lovastatin should the nurse prioritize for immediate follow-up?

Correct Answer is D

Explanation

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Which assessment technique would provide the most useful data when the nurse is concerned about possible urinary retention?

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A patient weighing 132 lb is prescribed lorazepam 44 mcg/kg IV to be administered 20 minutes before a scheduled procedure.

The medication is available in a 2 mg/mL vial.

How many mL should the nurse administer? Round off to 2 d.p.

(This is a medical math nd does not require options.)