The nurse informs the patient to remain well hydrated while taking lithium because dehydration can lead to:

Lithium toxicity

Increased effectiveness

The need to increase the lithium dosage

Lower serum lithium levels

Answer and Explanation

The Correct Answer is A

A. Lithium toxicity can occur if the patient becomes dehydrated while taking lithium, as dehydration can lead to higher concentrations of lithium in the blood.

B. Increased effectiveness is not a consequence of dehydration while taking lithium.

C. Dehydration would not typically lead to the need to increase the lithium dosage but rather to the risk of toxicity.

D. Dehydration can lead to higher, not lower, serum lithium levels, increasing the risk of toxicity.

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Correct Answer is D

Explanation

A. Suspended release formulations typically have a slower onset of action compared to sublingual administration.

B. Transdermal patches provide a slow, continuous release of nitroglycerin and do not offer rapid onset.

C. Topical ointments have a slower onset of action compared to sublingual administration.

D. Sublingual administration of nitroglycerin provides the most rapid onset of action due to direct absorption through the oral mucosa.

A. reducing B. constricting C. dissolving D. dilating

Correct Answer is D

Explanation

A. Organic nitrates, such as nitroglycerin, dilate (widen) veins and coronary arteries, leading to decreased preload and afterload, which helps relieve angina pain.

B. Constricting veins and coronary arteries would exacerbate angina symptoms by reducing blood flow to the heart muscle.

C. Dissolving veins and coronary arteries is not a mechanism of action for organic nitrates in the treatment of angina.

D. Dilating veins and coronary arteries is the primary mechanism of action for organic nitrates, resulting in increased blood flow to the heart muscle and relief of angina pain.

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The nurse informs the patient to remain well hydrated while taking lithium because dehydration can lead to:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with a group of nurses about the administration of nitroglycerin. Which of the following routes of administration provides the most rapid onset for the client?

Correct Answer is D

Explanation

The organic nitrates relieve angina pain by veins and coronary arteries.

Correct Answer is D

Explanation

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The nurse has just completed medication teaching regarding medications used to treat high cholesterol. Which statement made by the client indicates a need for further teaching?

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