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 ["C","D"]

Explanation

Based on the client’s current condition and the urgency of the interventions, the nurse should complete the following prescriptions first:

C) Apply oxygen 1 L/minute: The client’s oxygen saturation level needs to be kept above 94%. Given her difficulty in breathing and the fact that she is pale and sitting upright, it’s crucial to ensure she is receiving enough oxygen.
D) Give albuterol as ordered: Albuterol is a bronchodilator that can help relieve the client’s asthma symptoms. Since her symptoms did not resolve after taking her usual dose of albuterol, administering another dose as ordered can help improve her breathing.

A. Monitor an IV infusion rate on an established schedule. B. Titrate oxygen to the prescribed parameters. C. Insert a urinary catheter for an uncomplicated patient. D. Procure platelet products from the blood bank.

Correct Answer is C

Explanation

Choice A rationale

Monitoring an IV infusion rate on an established schedule requires assessment skills and clinical judgement to identify and respond to potential complications. This task should be performed by a registered nurse.

Choice B rationale

Titration of oxygen to prescribed parameters is a complex task that requires advanced assessment skills and a deep understanding of the patient’s condition and response to treatment. This task should not be delegated to unlicensed assistive personnel (UAP).

Choice C rationale

Inserting a urinary catheter for an uncomplicated patient is a task that can be safely delegated to UAP who have been trained and demonstrated competence in this skill. It is a routine procedure and does not require advanced assessment or decision-making skills.

Choice D rationale

Procuring platelet products from the blood bank is a task that involves handling and transporting biological materials, which requires specific knowledge and skills. This task should not be delegated to UAP.

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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

Exhibits After the nurse assesses the client, the healthcare provider writes prescriptions. The nurse reviews the prescriptions. Which 2 prescriptions should the nurse complete first?

Correct Answer is ["C","D"]

Explanation

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Correct Answer is C

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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.)