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 ["8"]
Explanation
To calculate the volume to administer, the nurse should use the following formula:
Volume (mL) = Dose (mg) / Concentration (mg/mL) x 1000
Plugging in the given values, the nurse should get:
Volume (mL) = 400 mg / 250 mg/5 mL x 1000
Volume (mL) = 8 mL
The nurse should round the answer to the nearest whole number and use a leading zero if it applies. Therefore, the nurse should administer 8 mL of valproic acid per dose.
Correct Answer is A
Explanation
The nurse should identify that this client has multiple risk factors for cardiovascular disease, such as hypertension, obesity, and smoking. These factors can increase the risk of atherosclerosis, coronary artery disease, stroke, and peripheral vascular disease.
Depression is wrong because it is not directly related to the client's physical examination findings. Depression may have other risk factors, such as genetics, stress, trauma, or substance abuse.
Thyroid disease is wrong because it is not directly related to the client's physical examination findings. Thyroid disease may have other risk factors, such as autoimmune disorders, iodine deficiency, or radiation exposure.
Testicular cancer is wrong because it is not directly related to the client's physical examination findings. Testicular cancer may have other risk factors, such as cryptorchidism, family
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