CT

Computed tomography is a safe and informative diagnostic method, but several contraindications must be considered before the study.

• Pregnancy, especially in the first trimester. Due to the potential effect of ionizing radiation on fetal development.

• Contrast allergy. Reactions to iodine-containing agents are possible with contrast CT. Inform the doctor about allergies before the study.

• Severe kidney failure. Possible risk of worsening kidney function when using contrast.

• Diabetes combined with kidney failure. Requires special preparation.

• Claustrophobia. May complicate the study (sedation used if possible).

• Inability to remain still during the procedure. For example, due to severe pain or neurological disorders.

For CT with contrast:

• Creatinine and urea tests no older than 10 days are required. Results must be within normal limits.

• Do not eat 4–6 hours before the study.

• Drinking water is allowed (still only).

• Inform your doctor if you take metformin, have any allergies, kidney disease, diabetes, or medications.

Be sure to inform the doctor about all medications you take and any recent or chronic illnesses.

Women must inform the doctor about the possibility of pregnancy.

How CT is performed:

• Patient wears comfortable clothing without metal parts.

• Brief instruction and health questionnaire are conducted.

• Patient lies on the CT scanner table.

• The table slowly moves through the tomograph ring — the X-ray source rotates around the body.

• It is necessary to remain still, sometimes holding breath on the doctor’s command.

• Study lasts from a few seconds to 10–15 minutes depending on the area being examined.

• If needed, contrast agent is administered intravenously to improve visualization.

• The table returns to its original position, patient can change clothes.

• Results are sent to the doctor for analysis and report preparation.