2. RDA (parameter/ value) - recommended daily allowance; recommended dietary allowance - The Recommended Dietary Allowance or RDA (sometimes referred to as Recommended Daily Allowance) is defined as "the average daily dietary intake level that is sufficient to meet the nutrient requirements of nearly all (approximately 98 percent) healthy individuals".
3. REM (physiologic event) - rapid eye movements rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleepcharacterized by dreaming
4. RF (condition/ disease) - Renal failure - is the partial or complete failure of the kidneys to function.
5. RHD (condition/ disease)
- rheumatic heart disease
- is heart valve damage that occurs after an episode ofrheumatic fever.
6. RLL (anatomy)
- right lower lobe (of lung)
7. RLQ (anatomy) - right lower quadrant (of the abdomen) - right lower quadrant of the lung
8. R/O (diagnostic data) - Removal Of
9. ROM (assessment/ parameter) - range of motion - The range of motion of a joint from full extension to full flexion (bending) measured in degrees like a circle.
10. ROS (assessment data) - review of systems - a system-by-system review of the body functions
11. RR (assessment parameter) - Respiratory rate / Relative Risk
12. RRR (assessment parameter) - relative risk reduction/ Regular rate and rhythm
13. SBE (condition/ disease) -subacute bacterial endocarditis - a chronic bacterial infection of the valves of the heart. It is characterized by a slow, quiet onset with fever, heart murmur, splenomegaly, and development of clumps of abnormal tissue, called vegetations, around an intracardiac prosthesis or on the cusps of a valve.
14. SBO (condition/ disease) - Small