Which of the following postprocessing techniques uses 100% of the data set? A) Multiplanar reconstruction B) Shaded surface rendering C) Maximum intensity projections D) Volume rendering - ️️VR
Which of the following statements regarding retrospective ECG gating is true?
A) It results in low...
ASRT 50 modules review Questions
Which of the following postprocessing techniques uses 100% of the data set? A) Multiplanar
reconstruction B) Shaded surface rendering C) Maximum intensity projections D) Volume rendering - ✔
✔ VR
Which of the following statements regarding retrospective ECG gating is true?
A) It results in lower patient dose than prospective ECG gating.
B) It uses a continuous helical acquisition throughout the ECG-monitored scan range.
C) It is more prone to motion artifacts and image misregistration.
D) It uses a pitch of 1.0. - ✔ ✔ uses continuous helical acquisition throughout ECG scan range
Which of the following statements regarding the CT Dose Index (CTDI) is false?
A) It is a more efficient estimate of the multiple scan average dose.
B) It is used to estimate the expected radiation output for an exam.
C) It represents the amount of radiation absorbed by the patient.
D) It is used for comparing radiation output between scanners. - ✔ ✔ c
Which of the following substances has the highest atomic number?
A) Muscle B) Water C) Fat D) Bone - ✔ ✔ bone
Which of the following venous access devices is never approved for power injection of contrast media?
A) Port-a-cath B) Peripheral IV C) PICC line D) Perm-a-cath - ✔ ✔ perm-a-cath
Which postprocessing technique is used to enhance the darkest (low density) shades within the scan?
A) Maximum intensity projection B) Minimum intensity projection C) Shaded surface rendering D)
Volume rendering - ✔ ✔ MINip
Which renal function test takes into consideration the patient's age, gender, and race?
A) BUN B) Creatinine C) PTT D) eGFR - ✔ ✔ eGFR
Which type of aneurysm balloons out on only one side of the vessel?
A) False aneurysm
,B) Fusiform aneurysm
C) Saccular aneurysm
D) Pseudoaneurysm - ✔ ✔ saccular
Which type of lymphoma has the highest survival rate?
A) Hodgkin lymphoma
B) non-Hodgkin lymphoma
C) B-cell lymphoma
D) CNS lymphoma - ✔ ✔ hodgkin
Abnormal collection of air in the pleural space is called:
A) pneumonia.
B) pulmonary effusion.
C) pneumothorax.
D) pulmonary bullae. - ✔ ✔ pneumothorax
Adjusting the window level changes the _______ of an image.
A) brightness B) contrast C) density D) resolution - ✔ ✔ brightness
After _______, no measurable contrast remains in the breastmilk of lactating patients.
A) 8 hours B) 12 hours C) 24 hours D) 48 hours - ✔ ✔ 24
All of the following are characteristics of beam-shaping filters, except:
A) they are physical devices.
B) they change the spatial distribution of the beam.
C) they change the digital appearance of images.
D) they remove lower-energy x-rays from the beam. - ✔ ✔ they change digital appearance of images
All of the following are contraindications to beta blockers, except:
A) heartbeat less than 60 beats per minute.
, B) systolic blood pressure less than 100.
C) second or third AV block.
D) congestive heart failure. - ✔ ✔ systolic blood pressure less than 100
All of the following are CT findings associated with pulmonary edema, except: A) vascular engorgement.
B) cardiomegaly.
C) lung abscess.
D) septal thickening. - ✔ ✔ lung abscess
All of the following are recommended to minimize exposure, except:
A) using kVp appropriate for patient size.
B) using adult settings for pediatric scans.
C) using automatic voltage features.
D) correctly centering the patient. - ✔ ✔ using adult settings for peds scans
All of the following are symptoms of uncomplicated diverticulitis, except:
A) bloating.
B) irregular defecation.
C) abdominal cramping.
D) rectal bleeding. - ✔ ✔ rectal bleeding
All of the following are true of ablation therapy procedures, except that they: A) have reduced morbidity
and mortality compared to surgery.
B) do not require sedation or anesthesia.
C) can be performed on an outpatient basis.
D) can be repeated over time. - ✔ ✔ does not require sedation/anesthesia
All of the following are true of ECG gating for CTA of the aorta, except that it: A) uses a slower pitch. B)
results in longer scan times. C) requires more IV contrast. D) is recommended to image the entire aorta.
- ✔ ✔ is recommended to image the entire aorta.
All of the following are true of high osmolar contrast media, except:
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