R (circled)
Right

R/O
Rule Out

RA
Rheumatoid Arthritis; Right Atrium

RAIU
Radioactive Iodine Uptake

RAP
Retinal Artery Pressure

RBC
Red Blood Cells (Red Blood Count)

RD
Registered Dietician

RDP
Retinopathy of prematurity

RDS
Respiratory Distress Syndrome

Regional Sensory Change
"Stocking" or global distribution of numbness. Any widespread numbness that involves an entire extremity of side of the body.

Regional Weakness
In patients with normal strength, the sudden letting of a muscle may be described as "cogwheeling," "giving way," "breakaway" weakness or "dithering." In patients with physical weakness, the muscle i...Full Definition

Rehab
Rehabilitation

Resp
Respiratory

Rh
Rhesus Factor

Rh. neg.
Rhesus Factor Negative

RIA
Radioimmunoassay

RIO
Right Inferior Oblique

RIR
Right Inferior Rectus

RL
Right Lid

RLE
Right Lower Extremity

RLF
Retrolental Fibroplasia

RLL
Right Lower Lid (or) Right Lower Lobe

RLQ
Right Lower Quadrant

RLR
Right Lateral Rectus

RMR
Right Medial Rectus

RN
Registered Nurse

ROA
Right Occipito - Anterior

ROM
Range of Motion (or) Rupture of Membranes

ROP
Right Occipito - Posterior

ROS
Review of systems

RPE
Rate of Perceived Exertion

RPF
Renal Plasma Flow

RPM
Revolutions per Minute

RPR
Rapid plasma reagin

RR
Recovery Room or Respiratory Rate

RR & E
Round, Regular and Equal (of Pupils)

RRR
Regular Rate and Rhythm

RSO
Right Superior Oblique

RSR
Right Superior Rectus

RT
Respiratory Therapy

RT3U
Resign T3 Uptake

Rte
Route

RTS
Revised Trauma Score

RUE
Right Upper Extremity

RUL
Right Upper Lid (or) Right Upper Lobe

RUQ
Right Upper Quadrant

RV
Right Ventricle

Rx
Therapy