Hypertonic saline stimulation is superior to arginine for diagnosing AVP deficiency
1. In this prospective cohort study, hypertonic saline-stimulated copeptin was more accurate in diagnosing arginine vasopressin (AVP) deficiency than arginine-stimulated copeptin. 2. The diagnoses made by these tests were compared against final diagnoses by two independent endocrinologists. Evidence Rating Level: 1 (Excellent) Study Rundown: AVP deficiency, formerly known as central diabetes insipidus, is difficult to
Source: 2minutemedicine.com