Welcome to RK.MD
A platform where cardiac anesthesiologist and intensivist Dr. Rishi Kumar shares insights in perioperative medicine, critical care, education, and tech while promoting curiosity and lifelong learning.
From The Blog
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Lumbar Puncture
Lumbar puncture (LP) is a bedside procedure I occasionally do as an intensivist to obtain a sample of cerebrospinal fluid…
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Lorazepam
Lorazepam (Ativan) is an IV, IM, and oral benzodiazepine medication which potentiates the GABA(A) receptor resulting in anxiolysis, sedation, amnesia,…
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Left Ventricular Pseudoaneurysm
A left ventricular (LV) pseudoaneurysm is an LV outpouching devoid of myocardium/endocardium contained by the pericardium and adhesions. As one…
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Fundoscopic Examination
Fundoscopy examines the interior, back surface of the eye, including the retina, blood vessels, macula, and optic disc. Before learning…
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Visipaque
Iodixanol (Visipaque) is an iodinated intravenous (IV) contrast agent which is iso-osmolar with plasma. Unlike the non-ionic monomer iohexol (Omnipaque),…
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Persistent Left Superior Vena Cava (SVC)
Persistent left superior vena cava (PLSVC) is a rare (~0.5% of the general population) venous anomaly when the left superior…