Score, Gleason
A grading system for prostate carcinoma. See Gleason score.
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- Scorpion venom
The potent poison of the scorpion, an insect that has an elongated body and a segmented, curved tail tipped with a venomous stinger. A sting can be fatal to a person who is allergic to it. The toxicity of scorpion venom varies by species. A given species’ venom may contain many chemicals, some toxic to […]
- Scrape
An abrasion or cut caused by something rubbing roughly against the skin. To treat scrape, wash the area with soap and water, and keeping it clean and dry. Alcohol, hydrogen peroxide, and iodine can delay healing and should be avoided. Seek medical care if you think that you might need stitches, as any delay can […]
- Scratch test for allergy
A test in which a small drop of the suspected allergy-provoking substance (allergen) is placed on the skin and the skin is then gently scratched through the drop with a sterile needle. If the skin reddens and, more importantly, if it swells, the test is read as positive, and allergy to that substance is considered […]
- Screening mammogram
A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually involves two X-rays of each breast. The aim of a screening mammogram is to detect a tumor that cannot be felt. A screening mammogram is different from a diagnostic mammogram which involves more X-rays. Diagnostic mammography is […]
- Screening, kidney disease
Blood test for creatinine Urine test for protein and Measurement of blood pressure The level of creatinine in the blood is then used to estimate the glomerular filtration rate, or GFR. The GRF and checking for persistent protein in the urine (proteinuria) are believed to be the best way to diagnose early kidney damage. The […]