Moini CH22 Diagnostic Imaging

An image produced on film by a sweeping beam of radiation is known as

• MRI
• cassette
• radioactive
• isotopes
• scan

The study of the gallbladder by X-ray with an oral contrast medium is called

• cholecystosonography
• cholecystitis.
• cholecystokinin.
• cholecystography.
• cholangiography

Radiation therapy for deeper tumors done on an outpatient basis is known as

• brachytherapy
• cryotherapy
• thermotherapy.
• teletherapy
• xeroradiography

Film artifacts are

• areas that interfere with the diagnostic value of the radiograph.
• desirable
• films that are beyond their expiration dates.
• diagnostic areas of interest.
• none of these

A type of diagnostic radiology that uses high-frequency sound waves is

• magnetic resonance imaging.
• X-ray.
• tomography
• arthrography
• ultrasound

The front-to-back position in radiology is known as

• posteroanterior
• lateral
• anteroposterior
• oblique
• supine

In preparing patients for such tests as barium enemas and CT scans, the medical assistant should

• tell them that they will have to hold their breath.
• tell them to eat a fat-free dinner the night before.
• ask them whether internal metals are present.
• ask them whether they are allergic to contrast media, iodine, or shellfish.
• ask them whether they are wearing body lotion.

Which of the following is used in the patient’s mouth for a sialography in order to open the salivary duct?

• an orange
• grapefruit
• a lemon
• a grape
• none of these

Xeroradiography is useful to diagnose which of the following disorders?

• breast cancer
• compression of the spinal cord
• brain tumor
• skull fracture
• kidney stone

Which of the following types of radiology involves the injection of isotopes combined with glucose?

• ultrasound
• computed tomography
• positron emission tomography
• magnetic resonance imaging
• xeroradiography