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
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

Low intake 
β€’ poor oral intake 

Renal loss 
β€’ Medication 
β€’ Hypomagnesemia 
β€’
Differential Diagnosis Algorithm ... Low intake ... β€’ Gitelman's syndrome ... β€’ Bartter's syndrome ... #Causes #Classification
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 β€’ Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Cushing Syndrome ... Testing Algorithm ... Cortisol, Saliva β€’ Low ... suppression test (DST) protocol ... #diagnosis #algorithm
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Hungry bones syndrome ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup
Differentiation Between Nephrotic Syndrome and Nephritic Syndrome 
== Nephrotic Syndrome ==
Onset - Insidious 
Edema - ++++
Blood
pressure - Normal/low ... Red blood cell casts ... Serum albumin - Low ... Red blood cell casts ... Nephritic #Comparison #Table
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
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 β€’ Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Tea and Toast Syndrome ... Beer Potomania - Low ... failure, nephrotic syndrome ... #causes #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... wasting from other causes ... suggests extra-renal causes ... consumption β€’ Low ... potassium #nephrology #low
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Differential Diagnosis Algorithm ... β€’ Gitelman's syndrome ... Hypomagnesemia #Magnesium #Low ... #Causes #Differential
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   β€’ Trauma
Differential Diagnosis by Classification ... exacerbation (any cause ... obstruction to blood flow ... Differential #Diagnosis #Classification ... #Table #CriticalCare