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. One and one-half tablets would exceed the prescribed dose.

B. One-quarter of a tablet would be 12.5 mg, which is less than the prescribed 25 mg.

C. One tablet would provide 50 mg, which is double the prescribed dose for the first week.

D. Half a tablet of a 50 mg tablet would correctly provide the 25 mg dose prescribed for the first week.

A. Hypertension B. Diuresis C. Bradycardia D. Headache

Correct Answer is D

Explanation

A. Nitroglycerin typically causes vasodilation and can lower blood pressure, rather than causing hypertension.

B. Diuresis, or increased urine production, is not a common adverse effect of nitroglycerin.

C. Nitroglycerin may cause a slight decrease in heart rate (bradycardia), but headache is a more common adverse effect.

D. Headache is the most common adverse effect of nitroglycerin, especially when first starting the medication or with dosage adjustments, due to vasodilation of blood vessels, including those in the head.

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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

An older patient has a prescription for sertraline (Zoloft) 25 mg/day, P O. to be taken for 1 week and then increased to 50 mg/day the second week. The pharmacy gives the patient 50-mg tablets. How many tablets will the patient take per day during the first week?

Correct Answer is D

Explanation

What is the most common adverse effect of nitroglycerin for which the patient is monitored?

Correct Answer is D

Explanation

The nurse is preparing to administer atenolol (Tenormin) to a client with angina. Which vital sign would cause the nurse to question administering this drug?

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The nurse is describing angina to a family member of a client recently diagnosed with the condition. Which characterization of angina is the most appropriate?

Patient education for the patient started on a selective serotonin reuptake inhibitor would include:

Which of the following classes of medication decreases heart rate, contractility, and blood pressure, and is used to increase survival rates in post-myocardial infarction patients?

A nurse is collecting data from a client who has been taking sertraline (Zoloft) for the past 2 weeks. Which of the following data collection findings should alert the nurse to the possibility that the client is developing serotonin syndrome?

A client taking nitroglycerin (Nitrostat) complains of a headache. Which conclusion is most appropriate by the nurse?

The client asks the nurse why the Transdermal Nitroglycerin patch needs to be off for 12 hours per day. What is the best response by the nurse?