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 Differential Diagnosis Algorithm

Low intake 
β€’ poor oral intake 

Renal loss 
β€’ Medication 
β€’ Hypomagnesemia 
β€’
Differential Diagnosis Algorithm ... Low intake ... Perspiration β€’ Dialysis ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemic periodic paralysis ... 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
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 β€’ Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - ... Causes of Hyporeflexia ... Hyperreflexia #Testing #Causes ... differential #diagnosis #table ... #neurology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
arrhythmias and paralysis ... wasting from other causes ... suggests extra-renal causes ... differential #potassium #nephrology ... #low
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
Is there a dialysis ... require urgent nephrology ... : Hypovolemia, Low ... PROBLEM ~80% of AKI cases ... CONSIDER INTRINSIC CAUSES
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Causes of Hypokalemia ... is ruled out, causes ... filling of bucket (low ... #Causes #workup ... #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 β€’ Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Beer Potomania - Low ... or other losses ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   β€’ Prolonged standing
Differential Diagnosis by Classification ... Reflex Syncope ... bradycardia β€’ Sinus pauses ... Differential #Diagnosis #Classification ... #Table #Causes
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential Algorithm ... β€’ Periodic paralysis ... #Differential #Algorithm ... #Diagnosis #Causes ... #Workup #Nephrology