Deck 17: Pediatric Computed Tomography

Question 1

Highly radiosensitive areas in children include each of the following except:

A) heart.
B) lens.
C) breasts.
D) genitalia.

Answer 1

heart.

Question 2

Advantages of multidetector CT (MDCT) include all of the following except:

A) better patient tolerance.
B) better use of contrast media.
C) improved contrast resolution.
D) reduced motion artifacts.

Answer 2

improved contrast resolution.

Question 3

Characterization of fractures and congenital abnormalities of the skeletal system are not well visualized by CT.

Answer 3

False

Question 4

It is not necessary to keep resuscitative supplies in the CT room.

Question 5

To minimize the risk of infection to the neonatal patient, technologists should do all of the following except:

A) change into surgical scrubs.
B) remove rings and watches.
C) wash hands thoroughly.
D) wear a cover gown.

Question 6

Toys, books, and puzzles are a welcome diversion for the child.

Question 7

Which is a basic tenet that technologists should apply when performing a pediatric examination?

A) Should be able to use immobilization
B) Should be honest with the patient and the patient's family
C) Should be fun and distracting from the procedure
D) Should be willing to overcompensate

Question 8

The parents are usually an important ally of the technologist and should be included whenever possible.

Question 9

The principal duty of the technologist is to ensure that the examination is completed in each of these ways except:

A) accurately.
B) quickly.
C) slowly.
D) safely.

Question 10

CT can be used to evaluate each of these deformities in the musculoskeletal system except:

A) congenital hip dysplasia.
B) osteogenic sarcoma.
C) leg-length discrepancy.
D) femoral anteversion.

Question 11

Any syndrome or condition with a respiratory risk should be recorded and brought to the attention of the radiologist before sedation is given.

Question 12

What time frame after injection does renal excretion of contrast peak?

A) 45-60 seconds
B) 1-3 minutes
C) 3-5 minutes
D) 5-10 minutes

Question 13

The dose of contrast material for children is:

A) 2-3 ml/kg.
B) 3-4 ml/kg.
C) 4-5 ml/kg.
D) 5-6 ml/kg.

Question 14

Imaging of the head and spine in children depends on all of the following expect:

A) age of the child.
B) clinical indication.
C) medical condition.
D) medical insurance coverage.

Question 15

Radiation exposure control can be achieved by each practice except:

A) use lead shielding when appropriate.
B) selection of appropriate scanning parameters.
C) coverage extending out from the area of interest.
D) following the as low as reasonably achievable (ALARA) principle.

Question 16

To maintain the infant's body temperature, all of the following can be done except:

A) covering the patient's head with a cap.
B) have a parent hold the infant during the scan.
C) increase the room temperature.
D) wrap the infant in a warm blanket.

Question 17

All sedated patients require continuous monitoring by nursing staff, which includes all of the following except:

A) blood pressure.
B) pulse oximetry.
C) respiratory rate.
D) temperature.

Question 18

The following are proper preparation for sedation requires patients to ingest nothing by mouth except:

A) 4-6 hours for solids.
B) 2-4 hours for formula or breast milk.
C) 2 hours for clear liquids.
D) 6-8 hours for baby food.

Question 19

Primary indications for computed tomographic imaging over magnetic resonance imaging (MRI) in brain studies include all of the following except:

A) assessment of trauma in the acute phase.
B) otitis.
C) fractures.
D) skull lesions.

Question 20

All of the following are infections where CT is used in children except:

A) appendicitis.
B) diverticulitis.
C) pneumonia.
D) pyelonephritis.

Question 21

CT remains the primary screening modality for the abdomen and pelvis in pediatric patients.

Question 22

CT angiography (CTA) recommends intravenous contrast media be hand injected to ensure painless administration for the pediatric patient.

Question 23

Oral contrast does not need to be used in pediatric abdominal and pelvic scans.

Question 24

Musculoskeletal soft tissue infections are best evaluated by CT.

Question 25

Successful computed tomographic angiography in children requires optimization of scan technique and contrast administration.

Question 26

Mature cells are the most radiosensitive.

Question 27

CT is the modality of choice for examinations of the abdomen after blunt injury or high-speed trauma.

Question 28

When positioning the patient for CT of the brain and face, it is not important to have the head centered in the gantry.

Question 29

CT is not useful in diagnosing congenital abnormalities such as scoliosis, lesions of the vertebral bodies, and osteomyelitis.

Question 30

Whenever performing a pediatric CT exam, the principle of ALARA should always be followed.

Question 31

Multiphase pediatric scans should always be performed in order to provide the radiologist with a maximum amount of information for a clear diagnosis.

Question 32

Modification of dose parameters is the most straightforward and important method to reduce dose.

Question 33

Immobilization of the child is essential to ensure patient safety and to provide images free of motion artifacts.

Question 34

For chest CT, shallow breathing in the child is adequate.

Question 35

It is the responsibility of every person involved with pediatric computed tomographic imaging to make sure that diagnostic scans are obtained with the minimum radiation dose.