The patient is admitted with a suspected acute myocardial infarction (AMI). In assessing the 12-lead electrocardiogram (ECG) changes, which findings would indicate to the nurse that the patient is in the process of a myocardial infarction (MI)?
Depressed ST-segment on ECG and elevated total CPK
Depressed ST-segment on ECG and normal cardiac enzymes
ST-segment elevation on ECG and elevated CK-MB or troponin levels
Q wave on ECG with normal enzymes and troponin levels
The Correct Answer is C
A. A depressed ST-segment is often associated with ischemia or non-ST elevation myocardial infarction (NSTEMI), not an ongoing MI.
B. A depressed ST-segment with normal cardiac enzymes suggests ischemia rather than an active MI.
C. ST-segment elevation on ECG combined with elevated cardiac biomarkers such as CK-MB or troponin levels is a hallmark of an acute ST-segment elevation myocardial infarction (STEMI), indicating an ongoing MI.
D. A Q wave on ECG indicates an old infarction and is not associated with an acute MI if enzymes and troponin levels are normal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Deaths of patients with communicable diseases still need to be reported because tissue and organ viability must be assessed on a case-by-case basis.
B. Tissue donation is voluntary and requires consent from the patient or their legal representative.
C. Organ donation can be authorized by a client's surrogate if the client has not previously given or refused consent. This allows for the surrogate to make decisions in line with the client’s wishes or best interests.
D. While facilities may have committees involved in the process, reporting is to organ procurement organizations, not solely to a facility's committee.
Correct Answer is B
Explanation
A. The radial pulse is not as reliable as the carotid pulse in assessing circulation during CPR.
B. The carotid pulse is the most reliable site to assess circulation in an adult during CPR because it is closest to the heart and will reflect the true status of central circulation.
C. The apical pulse is not typically assessed during CPR due to its location and difficulty in palpation.
D. The popliteal pulse is not a recommended site for assessing circulation during CPR.
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