R or rt
right
RBC or rbc
Red blood cell
R/O
Rule out
RDA
Recommended daily allowance
RDS
Respiratory distress syndrome
RDS
Infant respiratory distress syndrome
REM
Rapid eye movement
RLQ
Right lower quadrant
RUQ
Right upper quadrant
RDS
Respiratory distress syndrome
RN
Registered nurse
RNA
Ribonucleic acid
RNA
Registered nurse anesthetist
ROM
Range of motion
ROM
Rupture of membranes
ROS
Review of systems
RR
Respiratory rate
RRR
Regular rate and rhythm
RT
Reverse transcriptase
RT
Respiratory therapy
RX
Recipe
RX
Prescription
¯s
without
S/P
status post