RDA
Abbreviation for the Recommended Dietary Allowance. Or, popularly, the Recommended Daily Allowance.
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- RCT
Randomized controlled trial.
- RBC
Short for red blood cells, the cells that carry oxygen and carbon dioxide through the blood. This rather remarkable feat is thanks to hemoglobin, the pigment that makes red cells (and blood) look red. The red blood cells are also known as red corpuscles or erythrocytes (literally, red hollow vessels). RBC also stands for the […]
- Release, carpal tunnel
A surgical procedure to relieve pressure exerted on the median nerve within the carpal tunnel causing carpal tunnel syndrome. Surgical release is performed via a small incision, using conventional surgery techniques or a fiber-optic scope (endoscopic carpal tunnel repair).
- Rem
In radiation, an international unit of X-ray or gamma-ray radiation adjusted for the atomic makeup of the human body.
- REM sleep
REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1-2 hours and are quite variable in length. An episode of REM sleep may last 5 minutes or over […]