| ANS |
autonomic nervous system |
| Ba |
barium |
| BE |
barium enema |
| BM |
bowel movement |
| CCK |
cholecystokinin |
| EGD |
esophagogastroduodenoscopy |
| ENS |
enteric nervous system |
| ERCP |
endoscopic retrograde choleangiopancreatography |
| EUS |
endoscopic ultrasound |
| FOBT |
fecal occult blood test |
| FBS |
fasting blood sugar |
| GERD |
gastroesophageal reflux disease |
| GI |
gastrointestinal |
| GTT |
glucose tolerance test |
| HPA |
hormonal connections between the hypothalamus, pituitary, and adrenal gland (HPA axis) |
| IBS |
irritable bowel syndrome |
| LFT |
liver function test |
| LLQ |
left lower quadrant |
| LUQ |
left upper quadrant |
| N&V |
nausea and vomiting |
| NGT |
nasogastric tube |
| NPO |
nothing by mouth (Latin: nihil per os) |
| PUD |
peptic ulcer disease |
| RLQ |
right lower quadrant |
| RUQ |
right upper quadrant |
