RA
Rheumatoid arthritis
TMJ
Temporomadibular joint
EMG
Electromyography
IM
Intramuscular
ROM
Range of motion
BE
Barium enema
ERCP
Endoscopic retrograde cholangiopancreatography
GERD
Gastroesophageal reflux disorder
GI
Gastrointestinal
LES
Lower esophageal sphincter
NG
Nasogastric
NPO
Nothing by mouth
UGI
Upper gastrointestinal
BBB
Blood brain barrier
CNS
Central nervous system
CSF
Cerebrospinal fluid
CT
Computed tomography
EEG
Electroencephalography
HNP
Herniated nucleus pulposus
LP
Lumbar puncture
MRI
Magnetic resonance imaging
MS
Multiple sclerosis
PNS
Peripheral nervous system
PERRLA
Pupils round, reactive to light and accommodation