Questions & Answers (Grade A+)
non-ionic contrast media -
correct answer ✅iopadidol/ isovue
iohexol/ omnipaque
iopromide/ ultravist
Iso-osmolar contrast media (IOCM) -
correct answer ✅Iodixanol (Visipaque)
HAVE THE SAME OSMOLALITY AS BLOOD AND THEREFORE MAY
OFFER IMPROVED PATIENT COMFORT AND A REDUCED POTENTIAL
FOR UNTOWARD SIDE EFFECTS.
Diastole -
correct answer ✅Atrial & ventricular relaxation phase after heart
contraction. T wave in ECG
Parenteral route -
correct answer ✅Injection of meds into body. Include:
intramuscular, intravenous, intradermal, subcutaneous
CTDIw -
correct answer ✅Dosimeters at center and periphery of phantom.
Account for variance in dose due to beam hardening.
, ARRT CT Registry Review Exam
Questions & Answers (Grade A+)
R-cm -
correct answer ✅Roentgen/cm. Express pt dose from helical CT
scan.
Arterial Phase -
correct answer ✅25-35 sec post bolus
Steatosis -
correct answer ✅fatty liver
Diastolic pressure -
correct answer ✅Lowest heart pressure between contractions.
Adults: 60-9mHg = normal.
Flow rate for general CT abdomen -
correct answer ✅1.0-3.0ml/sec
Spatial Resolution -
correct answer ✅Describes a CT system's ability to image small
objects.