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A nurse is preparing to administer haloperidol 3 mg IM. Available is haloperidol injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.6"]

1. Dosage and Concentration:

Haloperidol dose to be administered: 3 mg

Concentration of available haloperidol injection: 5 mg/mL

2. Volume Calculation:

We can determine the volume to administer using the following formula:

Volume (mL) = Dose (mg) / Concentration (mg/mL)

3. Calculating the Volume:

Plugging in the values:

Volume (mL) = 3 mg / 5 mg/mL

4. Rounding the Answer:

The calculated volume is 0.6 mL. Rounding to the nearest tenth:

Volume (mL) = 0.6 mL (rounded)

Therefore, the nurse should administer 0.6 mL of haloperidol injection

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Correct Answer is C

Explanation

A) Now: A "now" prescription indicates that the medication should be administered immediately but is not necessarily repeated. It is usually for situations requiring urgent attention. The albuterol prescription is meant for use as needed over a period of time, not just once.

B) Single: A single prescription is for a one-time administration of medication at a specific time. The albuterol prescription allows for multiple doses as needed, making it different from a single prescription.

C) PRN: PRN stands for "pro re nata," which means "as needed." The albuterol prescription fits this category as it specifies that the medication should be inhaled 1 to 2 puffs every 4 to 6 hours as needed for asthma symptoms. This type of prescription allows the patient to use the medication when symptoms occur.

D) Standard: A standard prescription is for regular, scheduled use of a medication, often with a fixed dosing interval. While the albuterol prescription provides a range for dosing intervals, it is based on the occurrence of symptoms and not on a fixed schedule, differentiating it from a standard prescription.

Correct Answer is ["15.4"]

Explanation

To calculate the correct dose of diphenhydramine, we need to follow these steps:

Convert pounds to kilograms:
- 68 lb * 0.4536 kg/lb = 30.8 kg
Calculate the total dose in milligrams:
- 25 mg/kg * 30.8 kg = 770 mg
Determine the volume needed from the available concentration:
- 770 mg * (1 mL / 50 mg) = 15.4 mL

Therefore, the nurse should administer 15.4 mL of diphenhydramine.

Answer: 15.4 mL

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A nurse is preparing to administer haloperidol 3 mg IM. Available is haloperidol injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is talking with the parent of a child who has asthma and a new prescription for albuterol Inhalation aerosol 8.5 g. Inhale 1 to 2 puffs orally every 4 to 6 hr. as needed for asthma. The nurse interprets this medication as which of the following types of prescription?

Correct Answer is C

Explanation

A nurse is preparing to administer diphenhydramine 25 mg/kg IM to a child who weighs 68 lb. Available is diphenhydramine Injection 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["15.4"]

Explanation

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