Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Algorithm Before ... wasting from other causes ... suggests extra-renal causes ... consumption β€’ Low ... #nephrology #low
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Anorexia GI Losses ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 β€’ Normal Acid-Base: Low intake
 β€’ Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Normal Acid-Base: Low ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #nephrology
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 β€’ High Al, Low R - Primary aldosteronism
 β€’ High Al, High
Differential Diagnosis Algorithm ... Hypertensive: β€’ High Al, Low ... Differential #Diagnosis #Algorithm ... #nephrology #causes ... #low #potassium
Hypokalemia Differential Diagnosis Algorithm

Low intake 
β€’ poor oral intake 

Renal loss 
β€’ Medication 
β€’ Hypomagnesemia 
β€’
Differential Diagnosis Algorithm ... Low intake ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 β€’ MOA: Block fast Na+ channels
Vaughan Williams Classification ... of phase 4 to slow ... 3 - Potassium Channel ... #Pharmacology #Classification ... #Classes #pathophysiology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Excessive GI losses ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup
UCSF COVID-19 Adult Clinical Evaluation Guide - Updated April 10 2020

Clinical Presentation
β€’ Fever: hospitalized pts but
Adult Clinical Evaluation ... Cardiac: multiple case ... normal, can be low ... Guide #Diagnosis #Algorithm ... #Protocol #SARSCoV2
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 β€’ Na+ channels open leading to a
open leading to slow ... Vaughan Williams Classification ... 3 - Potassium Channel ... #Pharmacology #Classification ... #Classes #pathophysiology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 β€’ Epidemiology: -10% of all lupus cases, drug-dependent,
10% of all lupus cases ... in >90% - Low ... Discontinuation of causal ... Positive in 60-80% of cases ... sle #comparison #table