Exam 20: Diagnostic and Therapeutic Modalities

The spontaneous transmutation of a radionuclide resulting in a decrease of the number of radioactive events in a sample is the definition for:

A patient's T-score given in a bone density report:

In most breasts, the craniocaudal diameter is greater than the mediolateral diameter.

The effective dose from a bone density examination of both spine and hip is typically greater than 10 µSv (microSievert).

CSF will appear as a bright signal on T1-weighted images.

Which member of the nuclear medicine health team administers the radionuclide to the patient?

A patient's Z-score given in a bone density report:

What is the breast classification of a 35-year-old woman without children?

A transducer serves as both a transmitter and receiver of echo waves.

During a sonographic procedure, gel is applied to the skin to prevent loss of signal between transducer and skin, which would result in poor images.

The U.S.Mammography Quality Standards Act (MQSA) of October 1994 requires that:

In thin, elderly females, it is difficult to obtain an accurate soft-tissue analysis during a DXA scan.

Match each definition with the correct term.(Use each choice only once.) -Device that contains specific types of crystals that undergo mechanical stress to produce an ultrasound wave

Which of the following is NOT a possible risk factor for osteoporosis?

The FAST sonography examination is most often performed for trauma cases.

Computed radiography has lower operating costs over analog mammography imaging.

Transverse or spin-spin relaxation when spins begin to precess out of phase with each other is termed:

Ionizing radiation with characteristics of an electron but emitted from the nucleus of a radioactive atom is identified as a(n):

Which of the following occupational workers must have conventional radiographic images of the orbits taken before an MRI head scan?

Which of the following nuclei found in the body is most often used in MRI?