Certified EKG Technician (CET) Practice Exam 2025 – Comprehensive Test Prep

During a nuclear stress test, the patient is typically positioned supine (lying on their back) with their arms above the head to ensure the most effective imaging of the heart. This position helps to optimize the view of the heart during the scan, enabling the technician to capture clear and accurate images of blood flow and activity.

Placing the arms above the head expands the thoracic cavity, allowing for better visualization of the heart and surrounding structures. It also reduces any interference that could arise from the arms being in other positions. The supine position is generally more comfortable for patients undergoing this type of test, as it allows them to remain still without putting undue stress on any part of the body.

In contrast, the other positions listed may impede optimal imaging. For example, sitting with legs crossed can restrict circulation and change the heart's position relative to the imaging camera. Proning, or lying face down, would obstruct access to the chest area, complicating the imaging process. Standing could lead to movement, which can affect the quality of the images and possibly cause discomfort for the patient. Hence, the supine position with arms above the head is the most appropriate for a nuclear stress test.