Deck 16: Computed Tomography of the Body

Question 1

In CT, preoperative assessments of abdominal aortic aneurysms are performed for all of the following reasons except:

A) assess the iliac arteries.
B) determine the relationship between the aneurysm and the renal arteries.
C) determine surgery time.
D) precisely size the entire aneurysm.

Answer 1

determine surgery time.

Question 2

A triphase study of the liver includes all of the following except:

A) arterial phase.
B) delayed phase.
C) preinjection phase.
D) venous phase.

Answer 2

preinjection phase.

Question 3

Computed tomographic imaging of the adrenal glands is easy and reliable, except when the patient is extremely _________.

A) dehydrated
B) obese
C) thin
D) young

Answer 3

thin

Question 4

In patients with known or suspected bronchogenic carcinoma, computed tomography (CT) is used to determine the extent of invasion to all of the following except:

A) chest wall.
B) diaphragm.
C) mediastinum.
D) lymph nodes.

Question 5

In a trauma study of the liver, all of the following conditions can be demonstrated except:

A) active hemorrhage.
B) hematoma.
C) hemothorax.
D) lacerations.

Question 6

Computed tomographic imaging of the bowel for evaluation of bowel obstructions can demonstrate all of the following except:

A) confirmation of obstruction.
B) determination of the level of obstruction.
C) measurement of bowel fluid.
D) indication of possible vascular compromise.

Question 7

The ascending aorta is labeled:

A)1.
B)2.
C)5.
D)7.

Question 8

What is the most common indication for splenic imaging?

A) Arterial stenosis
B) Carcinomas
C) Lymphoma
D) Trauma

Question 9

Abdomen and pelvis scans are commonly obtained with the patient in a _________ position.

A) left lateral
B) right lateral
C) prone
D) supine

Question 10

The introduction of___________ enhanced the capability of determining the exact location of needle placement.

A) computed tomographic angiography
B) computed tomographic fluoroscopy
C) computed tomographic screening
D) quantitative CT

Question 11

Coronary artery studies present each of these challenges during computed tomographic angiography except:

A) pronounced rapid motion.
B) small size.
C) tortuous course.
D) invasive nature of acquiring images.

Question 12

Patients with diverticulitis will usually feel pain in the:

A) right upper quadrant.
B) right lower quadrant.
C) left upper quadrant.
D) left lower quadrant.

Question 13

What classification of chest CT can best diagnose conditions such as pulmonary lacerations, hemothorax, and pneumothorax?

A) HRCT
B) Lung CT
C) Screening CT
D) Trauma CT

Question 14

Computed tomographic imaging of bony tumors is useful in determining all of the following except:

A) articular involvement.
B) evaluating cortical integrity.
C) measuring bone strength.
D) tumor location in the bone.

Question 15

High-resolution CT (HRCT) is effective in evaluating all of the following except:

A) asbestosis.
B) dissecting aneurysm.
C) idiopathic pulmonary fibrosis.
D) silicosis.

Question 16

All of the following should be performed by the technologist before the examination except:

A) explain the examination to be performed.
B) explain the use of the contrast media.
C) have the patient empty the bladder.
D) summon the radiologist for the examination.

Question 17

What is the digital localizing radiograph that usually begins a computed tomographic?

A) View
B) Histograph
C) Topogram
D) Projection

Question 18

Computed tomographic imaging of skeletal trauma includes anatomical regions of the:

A) ankle.
B) pelvis.
C) shoulder.
D) spine.

Question 19

In the evaluation of renal calculi, advantages of a noncontrast CT over a conventional intravenous (IV) pyelogram include each of the following except:

A) reduction of radiation dose.
B) delineation of signs associated with obstruction.
C) determination of stone size.
D) determination of stone location.

Question 20

CT of the lungs is useful in diagnosing the following abnormalities except:

A) granulomas.
B) lymphangitic carcinomas
C) pleurisy.
D) pulmonary embolism.

Question 21

The psoas muscle is labeled:

A)1.
B)2
C)3.
D)4.

Question 22

The adrenal glands are labeled:

A)3.
B)4.
C)5.
D)8.

Question 23

The purpose of oral contrast agents is to opacify the gastrointestinal (GI) tract.

Question 24

MRI demonstrates the pancreas better than CT does.

Question 25

The structure labeled as 2 is the:

A) ascending aorta.
B) descending aorta.
C) esophagus.
D) superior vena cava.

Question 26

The structure labeled as 2 is the:

A) aorta.
B) hepatic artery.
C) inferior vena cava (IVC).
D) portal vein.

Question 27

Cardiac computed tomographic imaging has not proved successful in the evaluation of the coronary arteries.

Question 28

The duodenum is labeled:

A)1.
B)2.
C)3.
D)4.

Question 29

The trachea is labeled:

A)1.
B)2.
C)4.
D)7.

Question 30

HRCT is more sensitive than chest radiography for the detection of emphysema.

Question 31

CT is the primary method for pelvic assessment.

Question 32

The structure labeled as 3 is the:

A) anus.
B) sigmoid colon.
C) cecum.
D) duodenum.

Question 33

CT is better than ultrasonography in determining intrahepatic and extrahepatic bile ducts in jaundiced patients.

Question 34

An indication for computed tomographic scanning of the chest is lymphadenopathy in patients with suspected bronchogenic carcinoma, lymphoma, or other malignancies.

Question 35

Biphasic or triphasic examinations of the pancreas are helpful when searching for potential solid lesions.

Question 36

CT is superior to magnetic resonance imaging (MRI) for most clinical indications of the chest and abdomen.

Question 37

The superior mesenteric artery is labeled:

A)1.
B)2.
C)3.
D)4.

Question 38

The aorta is labeled:

A)1.
B)2
C)3.
D)4.

Question 39

Proper use of IV contrast is not important for detecting masses in the liver.

Question 40

The structure labeled as 2 is the:

A) renal calculus.
B) iliac artery.
C) ureter.
D) iliac vein.

Question 41

Please match the following Hounsfield units (HU) and fluids. Answer selections will be used only once.
1. 5-10 HU
2. 25-50 HU
3. 40-75 HU
4. 85-350 HU
40-75 HU

A)Clotted blood
B)Extravasated contrast
C)Ascites, bile, urine, or bowel contents
D)Unclotted blood

Question 42

If the patient has had a recent barium study, sufficient time should be allowed for elimination of the contrast medium.

Question 43

Please match the following Hounsfield units (HU) and fluids. Answer selections will be used only once.
1. 5-10 HU
2. 25-50 HU
3. 40-75 HU
4. 85-350 HU
25-50 HU

A)Clotted blood
B)Extravasated contrast
C)Ascites, bile, urine, or bowel contents
D)Unclotted blood

Question 44

Please match the following Hounsfield units (HU) and fluids. Answer selections will be used only once.
1. 5-10 HU
2. 25-50 HU
3. 40-75 HU
4. 85-350 HU
85-350 HU

A)Clotted blood
B)Extravasated contrast
C)Ascites, bile, urine, or bowel contents
D)Unclotted blood

Question 45

Please match the following Hounsfield units (HU) and fluids. Answer selections will be used only once.
1. 5-10 HU
2. 25-50 HU
3. 40-75 HU
4. 85-350 HU
5-10 HU

A)Clotted blood
B)Extravasated contrast
C)Ascites, bile, urine, or bowel contents
D)Unclotted blood