CAMRT - CT Virtual Colonoscopy/
Interventional Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Why does CT Colonoscopy (CTC) Residual feces can simulate masses or
require a clean colon prior to polyps
procedure?
What medications can be given to Laxatives (sodium phosphate, magnesium
patients to achieve a clean & dry citrate,
colon? polyethylene glycol, bisacodyl)
Which dry prep medications SodiumPhosphate or Magnesium Citrate
(preferred) that can be given to
patients prior to CTC that are high
osmotic saline agents that
increase
peristalsis & evacuation?
What wet prep medication can be Polyethylene Glycol
given to patients prior to CTC -
inferior in cleansing as it leaves
behind large amounts of fluid
which
may compromise exam quality?
Which dry prep medication is MagCitrate (Bisacodyl)
preferred as it is more effective,
safer, taste better?
, Which dry pep medication is Sodium Phosphate
contraindicated with patients with
severe hypertension/cardiac
disease,
known renal failure or insulin-
dependent diabetes, ascites, ileus,
and pre-existing electrolyte
abnormalities?
Method of labeling residue in the Fecal Tagging
colon
What type of contrast media must Positive contrast media (24-48 hours prior)
be
given to patients to improve
differentiation of soft tissue,
intraluminal lesions, & retained
stool?
What is the ideal patient Lateral Decubitus with right side elevated.
positioning
to help distend the right colon &
cecum during CT Colonoscopy?
What medication can be given to Antispasmodic agent (Glucagon or
patients to improve distention of Buscopan IV 20
the mg)
colon for CTC?
What is the preferred method of CO2 (15-20 mmHg), and be done slowly
insufflation for CTC? over 1-2
minutes.
Interventional Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Why does CT Colonoscopy (CTC) Residual feces can simulate masses or
require a clean colon prior to polyps
procedure?
What medications can be given to Laxatives (sodium phosphate, magnesium
patients to achieve a clean & dry citrate,
colon? polyethylene glycol, bisacodyl)
Which dry prep medications SodiumPhosphate or Magnesium Citrate
(preferred) that can be given to
patients prior to CTC that are high
osmotic saline agents that
increase
peristalsis & evacuation?
What wet prep medication can be Polyethylene Glycol
given to patients prior to CTC -
inferior in cleansing as it leaves
behind large amounts of fluid
which
may compromise exam quality?
Which dry prep medication is MagCitrate (Bisacodyl)
preferred as it is more effective,
safer, taste better?
, Which dry pep medication is Sodium Phosphate
contraindicated with patients with
severe hypertension/cardiac
disease,
known renal failure or insulin-
dependent diabetes, ascites, ileus,
and pre-existing electrolyte
abnormalities?
Method of labeling residue in the Fecal Tagging
colon
What type of contrast media must Positive contrast media (24-48 hours prior)
be
given to patients to improve
differentiation of soft tissue,
intraluminal lesions, & retained
stool?
What is the ideal patient Lateral Decubitus with right side elevated.
positioning
to help distend the right colon &
cecum during CT Colonoscopy?
What medication can be given to Antispasmodic agent (Glucagon or
patients to improve distention of Buscopan IV 20
the mg)
colon for CTC?
What is the preferred method of CO2 (15-20 mmHg), and be done slowly
insufflation for CTC? over 1-2
minutes.
