CAMRT Radiography Practice Exam

When would you typically not want to use a high pitch for a CT scan?

1. When imaging small structures

2. When rapid scanning is needed

3. When evaluating large abnormalities

4. When patient comfort is a priority

The correct answer is: When imaging small structures

Using a high pitch during a CT scan is typically not advisable when imaging small structures. High pitch scanning increases the speed of the scan, which can lead to decreased resolution. Small structures require higher spatial resolution for accurate visualization and diagnosis. When the pitch is increased, the system moves faster, which may result in a reduced number of data points being collected for small, intricate anatomical features. Therefore, it becomes more challenging to discern those small details necessary for a precise assessment. In scenarios such as rapid scanning or evaluating larger abnormalities, using a high pitch can be beneficial, as it allows for quicker scans and may adequately capture the required details of larger structures. Patient comfort may also not be directly impacted by pitch adjustments; however, ensuring clear images through optimal settings is crucial for all examinations.