1-DOC Pseudomembranous colitis–Metronidazole-Vancomycin 2-Clindamycin Ampicillin–Pseudomembranous colitis 3- ISCHEMIC Chest pain–Intercostobrachial nerve 4- Zenker Diverticulum –Pharyngeo Esophageal junction 5- GERD choice–PPIs 6- Barrel Shape chest — Emphysema 7- GBS –IOC –Nerve conduction velocity 8- Myasthenia Gravis –DOC –Pyridostigmine In resistant cases –IV IG 9- Tensilon test —Edrophonium …MG 10- Parkinson disease–Levodopa carbidopa