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 probable.
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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 […]
- Screening, newborn hearing
Testing of the newborn baby’s ability to hear. Newborn screening of hearing is done with automated auditory brainstem response tests or, less often, with what are called otoacoustic emission or conventional auditory brainstem response tests. The aim is to detect those babies with hearing deficits and teach them sign language in infancy or give them […]
- Script
An informal colloquial term for a prescription. Derived from prescription by removing both its beginning and ending to save a little bit of time and effort.
- Scrofula
An old term for tuberculosis of the lymph nodes in the neck. Also known as the King’s evil.