A nurse is providing care and education to a client after an acute myocardial infarction. Which of the following statements should the nurse make regarding cardiac enzyme studies?
"Cardiac enzymes assist in diagnosing the presence of pulmonary congestion."
"These tests will enable the provider to determine the heart structure and mobility of the heart valves."
"These tests help determine the degree of damage to the heart tissues."
"Cardiac enzymes will identify the location of the MI."
The Correct Answer is C
A. Cardiac enzymes do not diagnose pulmonary congestion. Pulmonary congestion is typically assessed using imaging, such as a chest X-ray or echocardiography.
B. Cardiac enzyme tests do not assess heart structure or valve mobility. An echocardiogram or cardiac MRI is used for that purpose.
C. Cardiac enzymes, such as troponins and creatine kinase-MB (CK-MB), indicate the extent of myocardial damage and are essential for diagnosing and managing acute myocardial infarction.
D. Cardiac enzymes confirm myocardial injury but do not pinpoint the exact location of the infarction. The location is determined using ECG findings and imaging studies.
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Related Questions
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"D"}
Explanation
- D-dimer is a blood test used to detect fibrin degradation products, which are elevated in conditions involving clot formation, such as deep vein thrombosis (DVT).
- Venous duplex ultrasound is the gold standard for diagnosing DVT, as it provides real-time imaging of blood flow and clot presence in the veins.
- Prothrombin time is a coagulation test used to assess clotting function but does not confirm DVT.
- Chest X-ray is not used to diagnose DVT but may be ordered if a pulmonary embolism (PE) is suspected.
Correct Answer is D
Explanation
A. A high HDL level (above 60 mg/dL) is protective against cardiovascular disease and does not contribute to hypertension.
B. A regular exercise routine is beneficial for cardiovascular health and helps lower blood pressure rather than increasing it.
C. Benazepril is an angiotensin-converting enzyme (ACE) inhibitor used to treat hypertension rather than causing it.
D. Obstructive sleep apnea (OSA) is a known risk factor for hypertension due to intermittent hypoxia and increased sympathetic nervous system activity, which contribute to elevated blood pressure.
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