Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief ๐Ÿ‡ต๐Ÿ‡ญ ๐Ÿ‡บ๐Ÿ‡ธ - 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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Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential ... Malabsorption, Chronic diarrhea ... or High PTH: Primary ... or Low FGF-23:
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 โ€ข Normal Acid-Base: Low intake
 โ€ข Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses: โ€ข Normal ... Gl tract loss (Diarrhea ... secreting tumor, Primary
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 โ€ข Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... Diagnosis Algorithm ... - Urinary Chloride ... /low blood pressure ... #causes #urinary
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Algorithm Acidosis ... - RTA - Diarrhea ... pH Normal 1 ... Primary hyperaldo ... #Causes #Workup
UCSF COVID-19 Adult Clinical Evaluation Guide - Updated April 10 2020

Clinical Presentation
โ€ข Fever: hospitalized pts but
20% โ€ข GI: N/V, diarrhea ... , can be low in ... -19 ID Clinical ... Guide #Diagnosis #Algorithm ... #Protocol #SARSCoV2
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
losses - Chronic diarrhea ... / IBD Renal Loses ... Hypomagnesemia #Differential ... #Diagnosis #Low ... Classification #Causes #Workup
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 โ€ข Decreased GI Absorption: Chronic Diarrhea, Antacids,
Diagnosis Algorithm ... Appropriately Low ... Absorption: Chronic Diarrhea ... โ€ข N Vitamin D: Primary ... nephrology #phosphorus #workup
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... Laxative use โ€ข Diarrhea ... mEq/g suggests urinary ... /Normal Blood Pressure ... #differential #
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 โ€ข Kidney loss of Cl-
Metabolic Alkalosis - Urinary ... Chloride Algorithm ... /low blood pressure ... Chloride #urine #Algorithm ... #nephrology #differential
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isnโ€™t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... Diagnosis Algorithm ... levels: realllly low ... #Diagnosis #Algorithm ... #workup #hematology