A client came into the emergency room with a possible myocardial infarction. The provider orders a series of blood tests to be drawn, which lab should the nurse anticipate will be drawn?
Brain Natriuretic Peptide (BNP)
Total Lactate Dehydrogenase (LDH)
Troponin
Creatinine
The Correct Answer is C
A. Brain Natriuretic Peptide (BNP) is a marker for heart failure, not the primary diagnostic test for myocardial infarction (MI).
B. Total Lactate Dehydrogenase (LDH) was historically used but is not specific for MI and has been replaced by troponin testing.
C. Troponin is correct. Cardiac-specific troponins (Troponin I and Troponin T) are the gold standard for detecting myocardial injury. Elevated levels indicate myocardial damage and are crucial for diagnosing MI.
D. Creatinine is important for assessing kidney function but is not a marker for myocardial infarction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A complete occlusion of the coronary artery is characteristic of an ST-segment elevation myocardial infarction (STEMI), not an NSTEMI.
B. Chest pain that resolves with rest is more indicative of stable angina rather than NSTEMI.
C. An NSTEMI occurs due to a partial occlusion of a coronary artery, leading to myocardial ischemia and damage without ST-segment elevation on an ECG.
D. Chest pain at rest can be seen in both unstable angina and NSTEMI, but it is not the defining feature of NSTEMI.
Correct Answer is A
Explanation
A. Preventing bronchospasms and promoting bronchodilation is correct. Ipratropium is an anticholinergic bronchodilator that relaxes airway muscles, reducing airway resistance and improving airflow in COPD patients.
B. Monitoring blood pressure is unrelated to ipratropium use. It primarily acts on the respiratory system, not the cardiovascular system.
C. Relieving nasal congestion is incorrect in this context, though ipratropium nasal spray can be used for rhinorrhea.
D. Reducing coughing is not the primary purpose. While bronchodilation may indirectly reduce cough by improving airflow, it is not a cough suppressant.
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