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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Correct Answer is B

Explanation

Choice A rationale

Counting and recording the number of premature ventricular contractions per minute is not the immediate priority for a patient experiencing symptoms of angina and shortness of breath. While it is important to monitor the patient’s heart rhythm, the immediate priority is to address the patient’s symptoms and stabilize their condition.

Choice B rationale

Applying oxygen via a nasal cannula and adjusting to maintain oxygen saturation above 93% is the immediate priority for a patient experiencing symptoms of angina and shortness of breath. Oxygen therapy can help to relieve the symptoms of angina and improve the patient’s oxygen saturation.

Choice C rationale

Ensuring troponin level assessments are scheduled every 3 to 6 hours for a series of three is important for diagnosing a heart attack, but it is not the immediate priority. The immediate priority is to address the patient’s symptoms and stabilize their condition.

Choice D rationale

Initiating dim lighting, lowering alarm volumes, and controlling traffic in and out of the room area can help to create a calm and quiet environment for the patient. However, this is not the immediate priority. The immediate priority is to address the patient’s symptoms and stabilize their condition.

A. Instruct the patient that it is important to reduce the dose of the medication gradually. B. Advise the patient to stop taking the medication immediately. C. Encourage the patient to obtain a prescription for a benzodiazepine antagonist. D. Discuss with the patient that there may be a need for additional sleep if the feeling of fatigue is present the next day.

Correct Answer is A

Explanation

Choice A rationale

Instructing the patient that it is important to reduce the dose of the medication gradually is the best course of action. Temazepam is a benzodiazepine, and abrupt discontinuation can lead to withdrawal symptoms, which can be severe and include seizures. Therefore, it’s crucial to taper off the medication under the supervision of a healthcare provider.

Choice B rationale

Advising the patient to stop taking the medication immediately is not recommended due to the risk of withdrawal symptoms.

Choice C rationale

Encouraging the patient to obtain a prescription for a benzodiazepine antagonist is not typically the first line of action when discontinuing temazepam.

Choice D rationale

Discussing with the patient that there may be a need for additional sleep if the feeling of fatigue is present the next day is not directly addressing the issue. The patient’s feelings of being “hungover” are likely due to the effects of the medication, not a lack of sleep.

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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.)

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Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

A patient taking temazepam informs you, the nurse, of plans to quit taking the medication due to feelings of being “hungover” the next day.What action should you implement?

Correct Answer is A

Explanation

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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.)