Contrast Studies QUIZ

Question 1

Which of the following gases may be used in a contrast study?
1. all choices are correct
2. room air
3. carbon dioxide (CO2)
4. Nitrous oxide (NO-)

Answer 1

1. all choices are correct

Question 2

Which drugs should NOT be given prior to an Upper GI contrast study?
1. all choices are correct
2. atropine
3. barbituates
4. anti-emetic

Answer 2

1. all choices are correct

Question 3

How many images should a Vet Tech take for an Upper GI study?
1. images are taken until contrast agent reaches the colon
2. no more than 10
3. images are taken until contrast agent reaches the ileum
4. 12

Answer 3

1. images are taken until contrast agent reaches the colon

Question 4

An IV catheter should be placed for an IVP (Intravenous Pyelogram) because
1. acute life-threatening allergic reactions are possible
2. all IVP patients are in renal failure
3. the IV contrast agents are caustic outside the vein
4. more income is generated for the clinic

Answer 4

1. acute life-threatening allergic reactions are possible

Question 5

The best description of Double-contrast study is
1. the use of both a positive and negative contrast agent during the same study.
2. completing two positive contrast studies one week apart to compare.
3. utilizing two different gases simultaneously during the study.
4. utilizing two different positive contrast agents simultaneously during the study.

Answer 5

1. the use of both a positive and negative contrast agent during the same study.

Question 6

What does an IVP evaluate?
1. kidneys and ureters
2. spinal cord
3. joint space
4. bladder and vagina

Answer 6

1. kidneys and ureters

Question 7

How is the Radiology Logbook used to monitor Quality Assurance of radiology equipment/technique? (2)

Answer 7

1. Technique settings assure that the same technique is used for a set of radiographs on the same patient over time (i.e. monitoring the healing of a fracture site or resolution of pneumonia)
2. Monitors that the equipment is working properly (i.e. if all the patient studies in one week are underexposed, this would indicate a problem with the x-ray beam or the image receiver or the software of the digital processing)

Question 8

Name two uses for BIPs (barium impregnated polyspheres) when evaluating the gastrointestinal tract.

Answer 8

1. Evaluates for obstructions in GI tract
2. Evaluates GI transit time of ingesta

Question 9

When administering barium to a patient, name two important care steps (think: safety! artifacts!).

Answer 9

1. Avoid getting contrast on the patient’s fur.
2. Administer in a neutral & comfortable position to avoid aspiration.
   - The lungs can’t absorb this viscous material and immediate asphyxiation may occur.
3. Avoid getting barium on human hands, cassettes or tables because will cause extreme artifacts on image.

Question 10

List two cautions for performing contrast studies on the urinary bladder.

Answer 10

1. Be cautious no room air has been injected into the bladder.
   - May cause a fatal air embolism.
2. Spillage (urinating the contrast on radiology table/cassette).
3. Should take any samples needed prior to injection of contrast.
4. Should take precautions to prevent any trauma associated with urinary catherization.
5. Barium sulfate and sodium iodide is contraindicated.
6. Do not over-distend the bladder!!

Question 11

How does a myelogram indicate information to a surgeon/neurologist?

Answer 11

A positive contrast is administered into the spinal fluid and will highlight the lesion/abnormality on the spine.
Or
Narrowing of the dye column around the spinal cord indicates the site of a lesion.