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A nurse is preparing to administer sulfadiazine 150mg/kg PO to divide equally every 6 hr to an adolescent who weighs 88 Ib.

Available is sulfadiazine 500 mg/tab.
How many tablets should the nurse administer per dose?

(Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).

1 tablet.

3 tablets.

4 tablets.

8 tablets.

Answer and Explanation

The Correct Answer is B

Step 1: Convert weight from lb to kg.

88 lb ÷ 2.2 = 40 kg

Step 2: Calculate total daily dose in mg.

150 mg/kg × 40 kg = 6000 mg

Step 3: Calculate dose per administration (every 6 hr).

6000 mg ÷ 4 = 1500 mg

Step 4: Calculate number of tablets per dose.

1500 mg ÷ 500 mg/tab = 3 tablets

Answer:

3 tablets per dose.

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

Heparin is an anticoagulant medication that is used to decrease the clotting ability of the blood and help prevent harmful clots from forming in blood vessels.

The activated partial thromboplastin time (aPTT) is a laboratory test commonly used to monitor unfractionated heparin therapy.

An aPTT value of 90 seconds is above the therapeutic range and indicates that the heparin infusion rate should be decreased.

Choice A is wrong because Erythrocyte sedimentation rate 18 mm/hr, is not the correct answer because it is not used to monitor heparin therapy.

Choice C is wrong because INR.2, is not the correct answer because it falls within the normal range for INR values and is not used to monitor heparin therapy.

Choice D is wrong because Platelets 350,000/mm, is not the correct answer because it falls within the normal range for platelet counts and is not used to monitor heparin therapy.

A. "Administer the medication into one nostril once per week.” B. "Lie down for 1 hour after administering the medication.” C. "Use a nasal decongestant 15 minutes before the medication if you have a stuffy nose.” D. "Plan to self-administer this medication for the next 6 months.”

Correct Answer is A

Explanation

Nasal cyanocobalamin is a form of vitamin B12 that is used to treat pernicious anemia.

It is typically administered once per week into one nostril.

Choice B is wrong because there is no need to lie down for 1 hour after administering the medication.

Choice C is wrong because using a nasal decongestant before administering the medication is not necessary and may interfere with the absorption of the medication.

Choice D is wrong because the duration of treatment with nasal cyanocobalamin varies and should be determined by the provider based on the client’s individual needs.

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Naxlex Comprehensive Predictor Exams

Heparin Infusion Review. A nurse is reviewing the laboratory results of a client who is receiving heparin by continuous IV infusion. Which of the following results indicates the nurse should decrease the infusion rate?

Correct Answer is B

Explanation

A nurse is teaching a client who has pernicious anemia to self-administer nasal cyanocobalamin. Which of the following information should the nurse include in the teaching?

Correct Answer is A

Explanation

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