Isosorbide mononitrate modified release formula is structured to provide a nitrate free period. The nurse understands that the rationale for this period is to:

decrease allergic reactions

decrease tolerance to effects

prevent reflex tachycardia

increase absorption

Answer and Explanation

The Correct Answer is B

A. Decrease allergic reactions: Nitrate-free periods are not primarily designed to address allergic reactions.

B. Decrease tolerance to effects: Nitrates, including isosorbide mononitrate, can lead to the development of tolerance when used continuously. The nitrate-free period helps to minimize this tolerance, allowing the medication to remain effective over time.

C. Prevent reflex tachycardia: While nitrate use can sometimes cause reflex tachycardia, the nitrate-free interval is not specifically aimed at preventing this.

D. Increase absorption: The nitrate-free period does not influence the absorption of the medication itself.

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Correct Answer is B

Explanation

A. Increased platelet count: While platelet activation can occur in unstable angina, an increased platelet count alone does not indicate heart damage. It is more relevant to thrombotic events than direct myocardial injury.

B. Elevated troponins: Troponin is a protein released when the heart muscle is damaged. Elevated levels are a key indicator of myocardial injury, making this a significant finding in the context of unstable angina.

C. Decreased homocysteine levels: Homocysteine levels are related to cardiovascular risk but are not directly indicative of heart damage. Elevated levels may suggest risk but do not confirm damage.

D. Elevated CK-MB: Creatine kinase-MB is an enzyme found in heart muscle. Elevated levels are indicative of myocardial injury, making this a relevant laboratory test for assessing heart damage in unstable angina.

E. Decreased alkaline phosphatase (ALT): Alkaline phosphatase is primarily related to liver and bone health and does not indicate heart damage. Decreased levels of ALT (alanine aminotransferase) are not relevant to myocardial injury.

A. The chest pains caused by a spasm my heart." B. "I should not experience chest pain since I am on aspirin therapy." C. "I should hire someone to shovel snow in the winter D. "Each time I have chest pain my heart is damaged more."

Correct Answer is C

Explanation

A. "The chest pains caused by a spasm of my heart": This statement reflects a misunderstanding. Chronic stable angina is typically caused by myocardial ischemia due to atherosclerosis rather than spasms. While vasospasm can occur, it is not the primary cause of chronic stable angina.

B. "I should not experience chest pain since I am on aspirin therapy": This statement is misleading. Aspirin therapy helps reduce the risk of clot formation and subsequent heart attacks but does not eliminate angina. Patients may still experience angina symptoms during exertion or stress.

C. "I should hire someone to shovel snow in the winter": This statement indicates an understanding of the need to avoid excessive physical exertion that could trigger angina. Hiring someone to perform strenuous tasks like shoveling snow reflects a proactive approach to managing the condition and preventing potential angina episodes.

D. "Each time I have chest pain my heart is damaged more": This statement is overly alarmist. While recurrent angina can indicate underlying heart issues, occasional episodes of stable angina do not necessarily result in immediate, progressive heart damage.

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Isosorbide mononitrate modified release formula is structured to provide a nitrate free period. The nurse understands that the rationale for this period is to:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is reviewing the chart of a client with a diagnosis of unstable angina. Which laboratory test(s) result(s) should the nurse recognize as an Indication of heart damage? (SELECT ALL THAT APPLY)

Correct Answer is B

Explanation

A client who has chronic stable angina is being discharged. Which statement by the client indicates an understanding of the discharge teaching?

Correct Answer is C

Explanation

The nurse administers the first dose of prazosin 1 mg PO to a client. Which nursing action is most appropriate following the administration of this medication?

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