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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Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Hypomagnesemia - Differential ... Diagnosis Renal ... #diagnosis #causes ... #nephrology #magnesium ... #low
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 β€’ Normal Acid-Base: Low intake
 β€’ Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses ... #causes #potassium ... #low #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 β€’ Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Diagnosis Algorithm ... Beer Potomania - Low ... β€’ Renal Failure ... #causes #nephrology
Hyponatremia Diagnosis Algorithm
UOsm β‰₯ POsm - Vasopressin-Dependent
 β€’ UNa < 20 mEq/L - Appropriate (↓ EABV)
Primary polydipsia, Low ... solute intake, Renal ... #differential # ... algorithm #causes ... #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
cells FEMg >4% = renal ... Hypomagnesemia #algorithm #differential ... #diagnosis #causes ... #nephrology #magnesium ... #low
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
Distal Renal Tubular ... much easier to diagnosis ... Type1 #Distal #Diagnosis ... #Management #Nephrology ... #Causes #Differential
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Erythematosus (total 50, renal ... Hypocomplementemia #Low ... CHAMPS #Mnemonic #diagnosis ... #differential #
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 β€’ Cardiac failure: Impaired forward flow,
Common causes of ... Diagnosis HEMODYNAMIC ... Impaired forward flow ... thromboembolism, renal ... #Diagnosis #nephrology
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 β€’ Anemia: macrocytic > normocytic, ↑ reticulocytes
 β€’
Hemolytic Anemia 1) DIAGNOSE ... β€’ Blood smear: Differential ... 2) LOOK FOR a cause ... #management #treatment ... #rheumatology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 β€’ Primary polydipsia (a.k.a. "psychogenic polydipsia")
 β€’
- Differential ... β€’ Central Dl (Low ... Nephrogenic DI (Renal ... #Diagnosis #Causes ... #nephrology