Abbreviations

• ac - before meals
• ADL - activities of daily living
• bid - twice daily
• drsg - dressing
• gtt - drop
• NS (N/S) - normal saline
• pc - after meals
• prn - when necessary
• stat - at once, immediately
• tid - 3 times a day
• wnl - within normal limits
• OD - Right Eye/Overdose
• OS - Left eye