Wednesday, January 24, 2024

In order to minimize involuntary motion.. broad focus is recommended. the use of short exposure time is essential

In order to minimize involuntary motion:

  • A- fine focus is recommended
  • B- broad focus is recommended
  • C- the use of short exposure time is essential
  • D- b&c

The answer to minimize involuntary motion is C. the use of short exposure time is essential.

Here's why:

Involuntary motion, such as breathing or peristalsis, can blur the image on an X-ray. The longer the X-ray beam is exposed to the patient, the higher the chance of capturing these movements, resulting in a blurry or unclear image.

Therefore, to minimize involuntary motion and ensure a sharp image, using a short exposure time is crucial. This means the X-ray beam is turned on for a very brief period, capturing the static anatomy before any significant movement can occur.

Summarizing the options:

Here's a table summarizing the options and their impact on involuntary motion:


Impact on Involuntary Motion

A. Fine focus

No direct impact. Fine focus collimates the X-ray beam, improving image sharpness but not directly affecting exposure time.

B. Broad focus

May increase involuntary motion blur. A broader beam covers a larger area, potentially capturing more movement during longer exposure times.

C. Short exposure time (correct)

Reduces involuntary motion blur. Shorthandening the exposure time limits the opportunity for movement to affect the image.

D. B & C

Not accurate. While broad focus could worsen blur, its main purpose is different. Short exposure time is the key factor in minimizing involuntary motion.

Additional Tips:

Here are some additional tips for minimizing involuntary motion during X-ray imaging:

- Proper patient positioning:

Ensure the patient is comfortable and well-supported to minimize movement.

- Breath holding instructions:

Ask the patient to hold their breath briefly during image acquisition.
Pain management: Address any pain or discomfort that might cause the patient to move involuntarily.

- Immobilization devices:

Utilize straps, cushions, or other tools to stabilize specific body parts, if necessary.

By using short exposure times and implementing these additional strategies, healthcare professionals can achieve sharp and clear X-ray images that accurately represent the patient's anatomy.