Exam 18: Computed Tomography of the Body

Use the following figure to answer the questions: -The trachea is labeled:

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

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

Match the following Hounsfield units (HU) and fluids. Answer selections will be used only once. -85-350 HU

Use the following figure to answer the questions: -The structure labeled as 2 is the:

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

Magnetic resonance imaging demonstrates the pancreas better than computed tomography does.

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

High-resolution computed tomography is more sensitive than chest radiography for the detection of emphysema.

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

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

In the evaluation of renal calculi, advantages of a noncontrast computed tomography over a conventional intravenous pyelogram include: I. delineation of signs associated with obstruction II. determination of stone size and location III. reduction of radiation dose

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

What is the most common indication for splenic imaging?

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

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

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

Computed tomography of the lungs is useful in diagnosing the following abnormalities except:

Use the following figure to answer the questions: -The aorta is labeled:

Computed tomographic examinations usually begin with a digital localizing radiograph, also known as a: I. scanogram II. scout view III. topogram