Which Type of HIV Virus Causes Most Infections in the United

question 3

Multiple Choice

Which type of HIV virus causes most infections in the United States and Europe?

• A) HIV type 1
• B) HIV type 2
• C) HIV type A
• D) HIV type B

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Definitions:

Magnetic Resonance Imaging

An imaging test that uses a magnetic field and radio waves to create detailed images of the organs and tissues within the body.

Radiation Absorbed Dose

A unit of measurement for the amount of radiation energy absorbed by a mass of material, typically tissue.

CT

Computed Tomography, an imaging procedure that uses special x-ray equipment to create detailed pictures, or scans, of areas inside the body.

AP

stands for Anteroposterior, a term used in radiology to describe the direction of an X-ray beam from front to back.