A patient is having a cardiac evaluation to assess for possible heart failure and valvular disease. Which study best identifies heart function and measures the size of the cardiac chambers?
Electrophysiology study
12-lead electrocardiogram
Cardiac catheterization
Echocardiogram
The Correct Answer is D
Rationale:
A. An electrophysiology study assesses the electrical activity of the heart but does not evaluate heart function or chamber size.
B. A 12-lead electrocardiogram records the electrical activity of the heart but does not provide detailed information on heart function or chamber size.
C. Cardiac catheterization is an invasive procedure used to assess coronary artery disease and other structural heart conditions but is not the primary study for evaluating heart function and chamber size.
D. An echocardiogram is a non-invasive ultrasound that provides detailed images of the heart, including its function, chamber size, and valve function, making it the best choice for this purpose.
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Correct Answer is D
Explanation
Rationale:
A. A coronary artery bypass graft is used to treat coronary artery disease but is not typically indicated for end-stage heart failure.
B. Percutaneous coronary intervention is also used for coronary artery disease, not for improving quality of life in terminal heart failure.
C. This option dismisses potential interventions that could improve quality of life, such as an LVAD.
D. An LVAD is a mechanical pump that assists the left ventricle in pumping blood, often used as a bridge to heart transplant or as a long-term solution to improve quality of life in patients with terminal heart failure.
Correct Answer is B
Explanation
Rationale:
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.