A nurse is teaching the partner of a client who had an acute myocardial infarction (MI) about the reason blood was drawn from the client. Which of the following statements should the nurse make regarding cardiac enzyme studies?

"These tests help determine the degree of damage to the heart tissues."

"These tests will enable the provider to determine the heart structure and mobility of the heart valves."

"Cardiac enzymes will identify the location of the MI."

"Cardiac enzymes assist in diagnosing the presence of pulmonary congestion."

Answer and Explanation

The Correct Answer is A

The nurse should explain that cardiac enzyme studies measure the levels of certain enzymes, such as troponin, creatine kinase, and lactate dehydrogenase, that are released into the bloodstream when the heart muscle is damaged by an MI. These tests help determine the degree of damage to the heart tissues, as well as the timing and severity of the MI.

"These tests will enable the provider to determine the heart structure and mobility of the heart valves." is wrong because cardiac enzyme studies do not provide information about the heart structure and mobility of the heart valves. Other tests, such as echocardiography or cardiac catheterization, may be used for this purpose.

"Cardiac enzymes will identify the location of the MI." is wrong because cardiac enzyme studies do not indicate the specific location of the MI within the heart. Other tests, such as electrocardiography or coronary angiography, may be used for this purpose.

"Cardiac enzymes assist in diagnosing the presence of pulmonary congestion." is wrong because cardiac enzyme studies do not directly assess the presence of pulmonary congestion, which is a complication of heart failure. Other signs and symptoms, such as dyspnea, crackles, and chest x-ray findings, may be used for this purpose.

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Correct Answer is D

Explanation

Taking one tablet at the first indication of chest pain is the correct way to use SL nitroglycerin tablets, as they are fast- acting and can relieve anginal symptoms within minutes. The client should place the tablet under the tongue and let it dissolve.

Taking this medication after each meal and at bedtime is not appropriate, as SL nitroglycerin tablets are not meant for routine or prophylactic use, but only for acute episodes of angina.

Taking one tablet every 15 min during an acute attack is not correct, as the client should not exceed three doses in 15 min. If the pain is not relieved after three doses, the client should seek emergency medical attention.

Taking this medication with 8 ounces of water is not necessary, as SL nitroglycerin tablets do not need to be swallowed or washed down with water. They should be dissolved under the tongue for optimal absorption.

A. "Place the client on his back." B. "Restrain the client." C. "Insert a padded tongue blade into the client's mouth." D. "Move objects away from the client."

Correct Answer is D

Explanation

Moving objects away from the client is an important action to take during a seizure, as it can prevent injury and protect the client from harm.

"Place the client on his back." is not correct, as it can cause airway obstruction and aspiration. The client should be placed on his side, preferably in a lateral recumbent position, to allow saliva and secretions to drain from the mouth.

"Restrain the client." is not appropriate, as it can cause injury, increase agitation, or prolong the seizure. The client should be allowed to move freely during a seizure, but supported and guided away from hazards.

"Insert a padded tongue blade into the client's mouth." is not advisable, as it can cause oral trauma, choking, or damage to the teeth. The client should not have anything inserted into his mouth during a seizure, as he cannot swallow or bite his tongue. The nurse should ensure that the client's airway is clear and patent.

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A nurse is teaching the partner of a client who had an acute myocardial infarction (MI) about the reason blood was drawn from the client. Which of the following statements should the nurse make regarding cardiac enzyme studies?

Nursing Test Bank

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