Glossary

V

Venipuncture

Puncturing a vein in order to obtain blood samples, to start an IV drip, or to give medication.

Vesicant

A medication or agent that may cause blistering.

Virus

A tiny infectious agent that is smaller than bacteria.

W

White blood cells (WBC)

General term for a variety of cells responsible for fighting invading germs, infection, and allergy-causing agents.

White blood count (WBC)

The actual number of white blood cells seen in a blood sample.

X

X-ray

High-energy electromagnetic radiation used to diagnose and treat disease. At low intensity it can be used to take films and diagnose disease, at high intensities it can be used to treat cancers.

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