Which of the following are procedures related to the cardiovascular system?

• A. Pulmonary function test, Spirometry, Arterial blood gas
• B. EKG, Echocardiogram, Blood tests
• C. MRI brain, CT scan, Ultrasound
• D. Colonoscopy, Endoscopy, Colon biochemistry

Answer: (B)

The main concept here is evaluating the cardiovascular system using tests that cover heart rhythm, heart structure and function, and blood-based indicators of heart health. An EKG records the heart’s electrical activity, helping detect rhythm problems and ischemia. An Echocardiogram uses ultrasound to visualize the chambers and valves and to assess how well the heart is pumping. Blood tests provide information about cardiac injury markers, heart failure indicators, lipid levels, and electrolytes that influence heart function. Together, these tests reflect the typical ways clinicians assess the heart and related processes.

The other groups focus on different body systems: tests for the lungs (pulmonary function tests, spirometry, arterial blood gas), brain imaging (MRI, CT), or the digestive tract (colonoscopy, endoscopy, GI biochemistry). That’s why the combination of EKG, Echocardiogram, and blood tests best represents procedures related to the cardiovascular system.