Related Experiment Video
Updated: May 26, 2026

Fast Inspection of Quality of Indigo Naturalis by Multiple Light Scattering
Published on: August 18, 2023
Hypotension in patients administered indigo carmine containing impurities -A case report-
Sung-Hoon Kim1, Eun Ha Suk, So Hyun Kil
1Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Abstract:
Indigo carmine has been used for eight decades with few adverse effects. Several of our patients, however, experienced severe hypotensive episodes after indigo carmine administration within a period of one month. Analysis of the raw materials used to formulate the preparation of indigo carmine we used showed that they contained impurities. Following recall of these impure materials, none of our patients experienced further hypotensive episodes.
Related Concept Videos
Alterations in Blood Pressure
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Cardiac Catheterization IV: Nursing Management
Cardiac Catheterization I: Pre-Procedure Overview
Imaging Studies for Cardiovascular System V: CT
Blood Pressure Imbalances and Circulatory Shock
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Antihypertensive Drugs: Vasodilators
