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Glossary

Showing 881-890 out of 1184 Terms

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  • Oxygen

    (OK-sih-jen)

    A colorless, odorless gas. It is needed for animal and plant life. Oxygen that is breathed in enters the blood from the lungs and travels to the tissues.

  • Oxygen mask

    An implement to enable breathing.

  • PCOS

    A condition marked by infertility, enlarged ovaries, menstrual problems, high levels of male hormones, excess hair on the face and body, acne, and obesity. Women with PCOS have an increased risk of diabetes, high blood pressure, heart disease, and endometrial cancer. Also called polycystic ovary syndrome.

  • PET Scan

    A procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is taken up. Because cancer cells often take up more glucose than normal cells, the pictures can be used to find cancer cells in the body. Also called positron emission tomography scan.

  • PICC line

    A device used to draw blood and give treatments, including intravenous fluids, drugs, or blood transfusions. A thin, flexible tube is inserted into a vein in the upper arm and guided (threaded) into a large vein above the right side of the heart called the superior vena cava. A needle is inserted into a port outside the body to draw blood or give fluids. A PICC may stay in place for weeks or months and helps avoid the need for repeated needle sticks. Also called peripherally inserted central catheter.

  • Packed cell transfusion

    A transfusion of red blood cells without the serum.

  • Packed marrow

    Bone marrow filled with tumor cells or blasts.

  • Palate

    (PAL-et)

    The roof of the mouth. The front portion is bony (hard palate), and the back portion is muscular (soft palate).

  • Palliative treatment

    Treatment that relieves symptoms, such as pain, but is not expected to cure the disease. The main purpose is to improve your quality of life.

  • Palpable

    Able to be touched or felt, such as a palpable tumor.