CAMRT Radiography Practice Exam

If 6 x-rays are taken and 2 are repeated, what is the repeat rate?

1. 20%

2. 33%

3. 40%

4. 50%

The correct answer is: 33%

To determine the repeat rate, you can use the formula: \[ \text{Repeat Rate} = \frac{\text{Number of Repeats}}{\text{Total X-rays Taken}} \times 100 \] In this scenario, there are 6 x-rays taken in total, with 2 of those needing to be repeated. Plugging the numbers into the formula: \[ \text{Repeat Rate} = \frac{2}{6} \times 100 = \frac{200}{6} \approx 33.33\% \] When rounded, this value corresponds to approximately 33%. This indicates that 33% of the x-rays taken were repeats, providing a clear understanding of how frequently initial attempts did not meet the required quality standards. The repeat rate is essential in evaluating the efficiency and quality of radiographic practices. A high repeat rate can indicate problems in technique, patient positioning, or equipment, which ultimately can affect patient safety and increase exposure time.