Why Fasting For X-ray Examination?

• Fasting is necessary for adult patients undergoing examination of the abdominal area.
• This is to ensure that the organs and anatomical structure are seen clearly and not obscured by faeces.
• To reduce side effects if there is any complication occurring as a result of the usage of contrast media.

When To Fast?

• Normally you would need to fast for the following;

– examinations involving the abdomen.

– special examinations requiring contrast media.

• You will be given fasting instruction by the radiographer or a nurse when an appointment is made.

Meaning Of Fasting For X-ray Examination

• It means that a patient is required to empty the digestive system at least 4-6 hours prior to the examination.
• Drinking plain water is allowed during the fasting period.
• The success of the examination depends on your:

– following the bowel preparation instruction;

– arriving at the appointed time.

Picture 1: Image of patient not fasting Source: www.wjes.org/content/2/1/20/figure/F1	Picture 2: Image of patient fasting Source: www.wjes.org/content/2/1/20/figure/F1