TBR-CT - Training From The BACK Of The Room Certified Trainer
TBR-CT - Training from the BACK of the Room Certified Trainer
Exam (elaborations)
CT Quiz Questions with Solutions
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TBR-CT - Training from the BACK of the Room Certified Trainer
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TBR-CT - Training From The BACK Of The Room Certified Trainer
Exam of 13 pages for the course TBR-CT - Training from the BACK of the Room Certified Trainer at TBR-CT - Training from the BACK of the Room Certified Trainer (CT Quiz Questions)
A patient is being positioned for a routine scan of the brain. Why is he asked to tuck his
chin down toward his chest? - answer To reduce the radiation exposure to the lens of
the eyes
What is the expected HU value of a measurement taken in a lateral ventricle? -
answer4-8
Which is a typical injection protocol for a routine contrast examination of the brain? -
answer100 mL delivered at 1 mL/s, scan delay of 5 minutes
Compared with a cerebral CTA, what parameter must be changed for a cerebral CTV? -
answer Delay from the start of injection to the start of scanning is increased.
Which is a TRUE statement regarding an emergency department patient who is
suspected of suffering from acute stroke? - answer A CT scan of the head must be
done as soon as possible because it is a necessary examination in determining whether
a patient can receive t-PA treatment.
What is the goal in performing perfusion studies for patients with acute stroke? -
answerTo distinguish infarcted tissue from the penumbra
For what study might data be acquired while the patient is lying prone on the CT table? -
answerHigh-resolution chest CT
A volumetric HRCT study refers to a protocol that includes which of the following? -
answerThin sections, in a helical mode, taken contiguously so as to cover the entire
lung, during inspiration, with the patient in a supine position
Why do many protocols for the evaluation of PE scan in the caudal-to-cranial
directions? - answerTo reduce artifacts attributable to patient motion and contrast
injection
What must happen to a thrombus for it to be referred to as an embolus? - answerIt must
detach from its original site.
At a particular institution, the PE protocol includes a second scan series, performed 180
seconds after the IV contrast injection, that extends from the iliac crests to the knees.
What is the purpose of this second series? - answerTo check the pelvis and lower
extremities for deep vein thrombosis.
, What heart valve is located between the right atrium and the right ventricle? -
answerTricuspid
ß-Blockers are likely to be used as part of a cardiac CT protocol when the -
answerpatient's heat rate is higher than 65 bpm
An imaging technique that attempts to acquire data only during cardiac segments with
the lowest cardiac motion is called - answerprospective ECG triggering
A patient who is scheduled for a CT study has an irregular heartbeat with a rate of
approximately 85 bpm. For which clinical indication is this the most problematic? -
answerCoronary artery disease
Why is it recommended that cardiac CT calcium scoring be restricted to patients with
risk factors for coronary artery disease, rather than using it as a screening tool for all
patients? - answerRisks related to the radiation dose are a concern; for asymptomatic
patients with no cardiac risk factors, it is not certain that the benefit of the examination
outweighs the risk from the radiation exposure.
Although patient compliance can sometimes be a factor, what volume of oral contrast is
a typically considered the minimum amount needed for a routine CT study of the
abdomen and pelvis? - answer600 ml
Which is a window setting used to visualize subtle liver lesions? - answer150 WW; 70
WL
A noncontrast CT of the abdomen is ordered on Mr. Smith. The primary indication is a
15-year history of alcoholism. What can the technologist do to help the radiologist
determine whether the patient has a fatty liver? - answerPlace a region of interest HU
measurement within the liver and spleen before archiving or filming the exam.
The phase of liver enhancement that occurs 60 to 70 seconds after an IV bolus contrast
injection is called the - answerportal venous page
For what clinical indication might a dual-phase (late arterial and portal venous) CT of the
abdomen be requested? - answerTo assess possible liver metastasis from a primary
thyroid tumor
The nephrogram phase is seen approximately ________ after IV contrast injection -
answer110 sec
An adrenal mass that measure less than or equal to 10 HU on unenhanced CT -
answeris an adenoma.
What explains the diversity in clinical presentation of acute appendicitis? - answerThe
variable position of the appendix
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