Adult-Gerontology Clinical Nurse Specialist (CNS) Practice Exam 2026 – Comprehensive All-In-One Guide for Exam Success!

Question: 1 / 485

Which of the following is NOT considered a first-line diagnostic test for gallbladder disease?

CBC with differential

Ultrasound

Urinalysis

ECG

The rationale for identifying ECG as not being a first-line diagnostic test for gallbladder disease stems from the specific purpose and function of each diagnostic tool.

Ultrasound is recognized as the primary imaging modality for evaluating gallbladder conditions, such as cholecystitis and gallstones, due to its ability to provide real-time images of the gallbladder and surrounding structures without radiation.

Common lab tests that help assess liver and gallbladder function often include a CBC with differential and urinalysis to check for signs of infection or obstruction. While these tests can provide valuable information, they are not imaging studies and usually do not directly diagnose gallbladder disease.

In contrast, the ECG is primarily utilized to assess heart function and detect cardiac issues, like arrhythmias or myocardial infarctions. Given its focus, an ECG does not assist in the direct evaluation of gallbladder pathology, making it unsuitable as a first-line diagnostic option in this context.

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