Final Test CT Scan/ Anatomy

50 Questions | By Amandajanae77 | Updated: Mar 22, 2022 | Attempts: 1559

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1.

The main purpose of the slip ring technology is to:
- A.
  
  Increase the number of dectors that can be housed in the gantry
- B.
  
  Make the CT scanning operation quieter
- C.
  
  Allow for continous rotation of the dectors and X-ray tube around the patient
- D.
  
  Reduce the potential for motion artifacts associated with spiral/ helical scanning
2.

The CT number for water is:
- A.
  
  Varies depending on the type of tissue being scanned
- B.
  
  Should always be near 0
- C.
  
  Is irrelevent to CT scanning
- D.
  
  Needs to be factored into tissues containing alot of water
3.

____________, pick up and measure the radiation passing through a cross-section of the patiant, convert the transmitted photons into an electrical signal, and then send the signal to the computer system for processing.
- A.
  
  Collimators
- B.
  
  Detectors
- C.
  
  Filters
- D.
  
  Slip Rings
4.

The gallbladder is located:
- A.
  
  Right upper quadrant
- B.
  
  Left upper quadrant
- C.
  
  Right lower quadrant
- D.
  
  Left lower quadrant
5.

There are ____ cervical vertebrae?
- A.
  
  5
- B.
  
  6
- C.
  
  7
- D.
  
  8
6.

The __________ axix is referred to as the sagittal plane.
- A.
  
  X axis
- B.
  
  Y axis
- C.
  
  Z axis
- D.
  
  None of the above
7.

CT scanners contain what type of collimators:
- A.
  
  Pre patient collimators
- B.
  
  Post patient collimators
- C.
  
  Both pre and post patient collimators
- D.
  
  Automatic collimators
8.

Thin collimation results in ________ resolution:
- A.
  
  Less
- B.
  
  Better
- C.
  
  Both
9.

The scan field of view (SFOV) is selected _______ the scan begains
- A.
  
  After
- B.
  
  Before
- C.
  
  During
10.

The display field of view (DFOV) can be equal to or ________ than the scan field of view?
- A.
  
  Less than
- B.
  
  Greater than
- C.
  
  Same size as the SFOV
11.

The ________ axis, or the coronal plane divides the patiants body into anterior and posterior sections.
- A.
  
  X axis
- B.
  
  Y axis
- C.
  
  Z axis
- D.
  
  A axis
12.

Spatial resolution describes the degree of blurring in an image and is a measure of how small an object can be imaged.
- A.
  
  True
- B.
  
  False
13.

Preprocessed CT data is referrred to as_____
- A.
  
  Raw data
- B.
  
  Image Data
- C.
  
  Display data
- D.
  
  Scan data
14.

Reconstruction that is performed at a much later time is known as________;
- A.
  
  Multiplaner reconstruction
- B.
  
  Curved reconstruction
- C.
  
  Minimum intensity projection
- D.
  
  Retrospective reconstruction
15.

The Z axis is called the _______ because it divides the body into superior and inferior parts.
- A.
  
  Coronal Plane
- B.
  
  Z gap
- C.
  
  Axial Plane
- D.
  
  Image Plane
16.

Acute renal faliure occurs after all IV contrast injections
- A.
  
  True
- B.
  
  False
17.

CT contrast can be administered via:
- A.
  
  PO, Oral, and Rectal
- B.
  
  Oral, Po, and IV
- C.
  
  Iv, Oral, and Rectal
- D.
  
  Rectal, PO, and oral
18.

A patient with an allergy to Iodine can still be injected after premedication has been adminstered.
- A.
  
  True
- B.
  
  False
19.

The ______houses most of the functional equipment parts needed to acquire image data.
- A.
  
  Generator
- B.
  
  Computer
- C.
  
  Gantry
- D.
  
  Table
20.

Cardiac arrest is classified as a _______reaction:
- A.
  
  Severe
- B.
  
  Minor
- C.
  
  Intermediate
- D.
  
  Death
21.

The detectors which measure the patiants attenuation data are located _______ the XRay tube.
- A.
  
  Inside
- B.
  
  Under
- C.
  
  Next to
- D.
  
  Opposite
22.

As the pitch increases the patient moves through the gantry at a _____ rate.
- A.
  
  Faster
- B.
  
  Slower
- C.
  
  Table speed does not change
23.

As the pitch increases the patiant dose ______.
- A.
  
  Doubles
- B.
  
  Increases
- C.
  
  Stays the same
- D.
  
  Decreases
24.

Window width (WW) determines the maximun ________ that can be displayed on the CT monitor.
- A.
  
  Pixels
- B.
  
  Number of Images
- C.
  
  Number of shades of gray
- D.
  
  Size of matrix
25.

A pixel is a ________ element that is assigned a gray value in the form of a ct number.
- A.
  
  Box
- B.
  
  Two- dimensional
- C.
  
  3D
- D.
  
  Small