This issue of Medical Clinics, guest edited by Dr. Joseph F. Szot, is devoted to Outpatient Emergencies. Articles in this issue include: Anaphylaxis; Monoarticular Arthritis; Tachyarrhtmias/Bradyarrhythmias; Psychiatric Emergencies; Hypertensive Emergency; TIA/Stroke; COPD and Asthma Exacerbation; Ophthalmologic Emergencies; Otolaryngologic Emergencies; Acute Congestive Heart Failure; Endocrine Emergencies, DKA Hyper Osmolar; Altered Mental Status/Delirium; and Intoxication and Withdrawal.