a nurse is reviewing laboratory results for a client who is receiving heparin via continuous iv infusion which of the following results indicates that

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ATI Pharmacology Test Bank

1. A healthcare professional is reviewing laboratory results for a client who is receiving heparin via continuous IV infusion. Which of the following results indicates that the heparin infusion should be increased?

A. aPTT of 90 seconds
B. Platelet count of 150,000/mm³
C. INR of 1.0
D. Hgb of 15 g/dL

Correct answer: A

Rationale: An aPTT of 90 seconds is above the therapeutic range for heparin, which typically falls between 60-80 seconds. This indicates that the current heparin dose is too high, and the infusion rate should be decreased to avoid excessive anticoagulation and the risk of bleeding. Monitoring aPTT is crucial in adjusting heparin therapy to maintain it within the therapeutic range.

2. A client has a new prescription for alendronate to treat osteoporosis. Which of the following instructions should be included in the teaching?

A. Take the medication with a full glass of water after rising in the morning.
B. Lie down for 30 minutes after taking the medication.
C. Take the medication with a meal to reduce gastric irritation.
D. Crush the tablet and mix it with applesauce if difficulty swallowing.

Correct answer: A

Rationale: The correct instruction for taking alendronate is to take it with a full glass of water after rising in the morning to prevent esophageal irritation. It is important to remain upright for at least 30 minutes after taking the medication to reduce the risk of esophageal irritation and ensure proper absorption. Taking the medication with a meal or crushing the tablet are not recommended instructions for alendronate administration. Choice A is the correct answer as it aligns with the proper administration guidelines for alendronate.

3. Which of the following is not related to drug toxicity of Atenolol?

A. CHF
B. Tachycardia
C. AV block
D. Sedative appearance

Correct answer: B

Rationale: Atenolol, a beta-blocker, is not typically associated with tachycardia. Instead, drug toxicity of Atenolol is more commonly linked to bradycardia due to its beta-blocking effects on the heart's electrical conduction system. Symptoms of Atenolol toxicity may include heart failure (CHF), AV block, and a sedative appearance, but not tachycardia.

4. A client has a new prescription for Prednisone. Which of the following instructions should be included?

A. Increase your intake of vitamin D.
B. Take this medication on an empty stomach.
C. Avoid drinking grapefruit juice.
D. Take this medication every other day.

Correct answer: A

Rationale: When a client is prescribed Prednisone, it is important to increase the intake of vitamin D to help mitigate the risk of bone loss associated with the medication. Vitamin D aids in calcium absorption, supporting bone health in individuals taking Prednisone.

5. What is levothyroxine's pharmacologic classification?

A. Thyroid Preparations
B. Metabolic Inhibitors
C. Analgesic
D. Loop Diuretic

Correct answer: A

Rationale: Levothyroxine is classified as a thyroid preparation because it is a synthetic form of the thyroid hormone thyroxine. It is primarily used to treat hypothyroidism by supplementing or replacing the natural thyroid hormones in the body, helping to regulate metabolism and energy levels. Choice B, Metabolic Inhibitors, is incorrect because levothyroxine does not inhibit metabolism but rather helps regulate it. Choice C, Analgesic, is incorrect as levothyroxine is not used for pain relief but for thyroid hormone replacement therapy. Choice D, Loop Diuretic, is also incorrect as loop diuretics are medications that act on the kidneys to increase urine production and are not related to thyroid hormone replacement therapy.