The healthcare provider orders Compazine 10 mg IM now. The concentration available is Compazine 5 mg/mL. How many mL will the patient receive?

0.5 mL

4 mL

1 mL

2 mL

Answer and Explanation

The Correct Answer is D

Choice A reason: For 10 mg at 5 mg/mL: 10 ÷ 5 = 2 mL. Choice A (0.5 mL) delivers 2.5 mg (0.5 × 5), underdosing Compazine, which may fail to control nausea or psychosis, making this choice incorrect for the prescribed dose.

Choice B reason: The correct volume is 10 mg ÷ 5 mg/mL = 2 mL. Choice B (4 mL) delivers 20 mg (4 × 5), overdosing Compazine, risking extrapyramidal symptoms or sedation, making this choice incorrect and potentially harmful for safe administration.

Choice C reason: For 10 mg, the volume is 2 mL (10 ÷ 5). Choice C (1 mL) delivers 5 mg (1 × 5), underdosing Compazine, which could be ineffective for nausea or psychiatric symptoms, making this choice inadequate for the ordered dose.

Choice D reason: Calculating 10 mg ÷ 5 mg/mL = 2 mL accurately delivers the ordered 10 mg of Compazine (prochlorperazine) for nausea or psychosis. This ensures therapeutic efficacy without overdose, aligning with safe intramuscular administration, making this the correct choice.

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Free Nursing Study Resources

Correct Answer is ["A","B","C"]

Explanation

Choice A reason: Selectivity ensures a drug targets specific receptors, minimizing side effects. This is a key property of an ideal drug, making it a correct choice.

Choice B reason: Safety is critical, ensuring the drug causes minimal harm at therapeutic doses. This is a fundamental ideal drug property, so it is correct.

Choice C reason: Effectiveness ensures the drug achieves its intended therapeutic effect. This is essential for an ideal drug, making it a correct choice.

Choice D reason: Irreversible action is not ideal; reversible effects allow control and safety. The ‘Big Three’ focus on efficacy, safety, and selectivity, so this is incorrect.

Choice E reason: A trade name aids marketing but is not a pharmacological property. Effectiveness, safety, and selectivity are primary, so this is incorrect.

A. 0.6 mL B. 1.6 mL C. 2 mL D. 1 mL

Correct Answer is B

Explanation

Choice A reason: For 40 mg at 25 mg/mL: 40 ÷ 25 = 1.6 mL. Choice A (0.6 mL) delivers 15 mg (0.6 × 25), underdosing Benadryl, which could fail to relieve allergic symptoms or sedation needs, making this choice incorrect for the prescribed dose.

Choice B reason: Calculating 40 mg ÷ 25 mg/mL = 1.6 mL accurately delivers the ordered 40 mg of Benadryl (diphenhydramine) for allergy or sedation. This ensures therapeutic efficacy without overdose, aligning with safe administration for intramuscular delivery, making this the correct choice.

Choice C reason: For 40 mg, the volume is 40 ÷ 25 = 1.6 mL. Choice C (2 mL) delivers 50 mg (2 × 25), overdosing Benadryl, risking excessive sedation or anticholinergic effects like dry mouth or confusion, making this choice incorrect and potentially unsafe.

Choice D reason: The correct volume is 1.6 mL (40 ÷ 25). Choice D (1 mL) delivers 25 mg (1 × 25), underdosing Benadryl, which may not achieve therapeutic effects for allergies or sedation, making this choice inadequate for the prescribed dose.

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The healthcare provider orders Compazine 10 mg IM now. The concentration available is Compazine 5 mg/mL. How many mL will the patient receive?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

What are considered the ‘Big Three’ properties of an ideal drug? (Select all that apply)

Correct Answer is ["A","B","C"]

Explanation

The healthcare provider orders Benadryl 40 mg IM now. The available concentration is 25 mg/mL. How many mL will the patient receive?

Correct Answer is B

Explanation

Name the imbalance using the following Arterial Blood Gas (ABG) values: pH 7.31, PaCO2 41, HCO3- 20

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Which of the following cells increase acid in the stomach? (Select all that apply)

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A patient with hypertension is prescribed a nonselective beta-blocker. The nurse reviewing this patient’s chart before administering the medication will be most concerned about which other disease process?