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."
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Aphasia is a language disorder that affects the ability to understand or produce speech. It can be caused by damage to the brain regions that control language, such as from a stroke. Depending on the type and severity of aphasia, the client may have difficulty with comprehension, expression, reading, or writing. Communication strategies for clients with aphasia include using nonverbal cues, such as gestures, facial expressions, pictures, or objects, to supplement verbal messages and enhance understanding.
The other options are not correct because:
a. "Use simple, childlike statements when speaking." This statement is incorrect because it is patronizing and disrespectful to the client. The client's cognitive and intellectual abilities are not affected by aphasia, only their language skills. The nurse should use simple and clear sentences, but not childish or demeaning ones.
c. "Use a higher-pitched tone of voice when speaking." This statement is incorrect because it is unnecessary and may be irritating to the client. The client's hearing is not affected by aphasia, only their language processing. The nurse should use a normal tone of voice and speak slowly and clearly.
d. "Ask multiple choice questions as part of the conversation." This statement is incorrect because it may be confusing and frustrating to the client. The client may have difficulty with verbal output or comprehension, and
multiple choice questions may add to their cognitive load. The nurse should ask yes or no questions or use gestures or pictures to elicit responses from the client.
Correct Answer is ["50"]
Explanation
To calculate the gt/min, the nurse should use the following formula:
gt/min = (mL/hr x drop factor) / 60
Plugging in the given values, we get:
gt/min = (150 mL/hr x 20 gt/mL) / 60
gt/min = 3000 gt/hr / 60 gt/min = 50 gt/min
Therefore, the nurse should set the manual IV infusion to deliver 50 gt/min.
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