R

• R.N. - Registered Nurse
• R.T. - Respiratory Therapy
• R/O - rule out
• RA - Rheumatoid Arthritis
• RAIU - radioactive iodine uptake
• RBBB - Right bundle branch block
• RBC- Red blood cells
• ROA- right occiput anterior
• ROM- range of motion
• ROP- Right occiput posterior
• ROT- Right occiput transverse
• RR- recovery room
• RSA- Right sacrum anterior
• RSR- regular sinus rhythm
• RST - right sacrum transverse
• Rt.- right
• RUE- right upper extremity
• RUQ- right upper quadrant
• Rx - treatment
• Rehab. - rehabilitation
• RF- rheumatoid factor for arthritis
• Rh- rhesus blood factor
• RHD - rheumatic heart disease
• RMT - right mentotransverse