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The patient has an order for 15,000 units of heparin SUBQ now. Nurse A has prepared the dose of 15,000 units of heparin. Following standard practice, Nurse A shows the multidose vial of heparin (40,000 units per mL) and the syringe with the drawn dose to Nurse B. Nurse B sets up the following proportion:

40,000 units: 1 mL:: 15,000 units: x mL

What volume of heparin would Nurse B expect to see in the syringe?

2 mL

0.2 mL

0.38 mL (0.375 mL)

2.7 mL (2.66 mL)

Answer and Explanation

The Correct Answer is C

Calculation:

Ordered Dose (D) = 15,000 units

Available Dose (H) = 40,000 units

Quantity (Q) = 1 mL

Volume (mL) = (Dose Ordered (D) / Dose Available (H)) x Quantity (Q)

= (15,000 units / 40,000 units) x 1 mL

= 0.375 x 1 mL

= 0.375 mL

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

Calculate the dose (number of tablets):

Ordered Dose (D) = 25 mg

Available Dose (H) = 50 mg per tablet

Tablets = (Ordered Dose / Available Dose)

= (25 mg / 50 mg)

= 0.5 tablet (or 1/2 tablet)

A. I will cut one tablet in half, then take one and one-half tablets morning and evening. B. I need to get a different dose of medication from the pharmacy. C. I will take two tablets in the morning. D. I will cut one tablet in half, then take one and one-half tablets daily.

Correct Answer is A

Explanation

A. I will cut one tablet in half, then take one and one-half tablets morning and evening: Each tablet is 25 mg, so one and a half tablets equals 37.5 mg. Taking this dose twice daily matches the provider’s order for safe and accurate dosing.

B. I need to get a different dose of medication from the pharmacy: A different strength is not necessary because the prescribed dose can be achieved by splitting the 25 mg tablet appropriately.

C. I will take two tablets in the morning: Two tablets equal 50 mg, which exceeds the ordered 37.5 mg and could result in an overdose.

D. I will cut one tablet in half, then take one and one-half tablets daily: Taking one and a half tablets only once a day provides half the prescribed total daily dose, which is insufficient for therapeutic effect.

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Naxlex Comprehensive Predictor Exams

The patient is ordered 25 mg of an oral tablet every 12 hours. The drug bottle lists "50- mg scored tablets" on the label. Which statement, made by the nurse, provides accurate instruction to the patient?

Correct Answer is B

Explanation

The patient's discharge medication is available as a scored tablet with a dosage strength of 25 mg/tablet. The provider has ordered 37.5 mg of the medication PO twice daily. Which statement made by the patient indicates correct daily administration of the discharged medication?

Correct Answer is A

Explanation

When practicing safety in the administration of medication, the nurse is correct to seek clarification prior to the administration of which of the following medication orders?

The patient is ordered 25 mg of an oral tablet every 12 hours. The drug bottle lists "50- mg scored tablets" on the label. Which statement, made by the nurse, provides accurate instruction to the patient?

A student nurse makes the following statements regarding the units of measurements commonly found on drug labels. Which statement indicates a need for further clarification?

The birth weight of a premature infant is 900 gram. The nurse accurately recorded ______kg as the birth weight in the medical record.

A nurse is preparing to administer an oral medication. Which of the following is the priority safety steр?

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