50 results
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Magnesium, High ... Magnesium - Functional ... Extravascular deposition: Hyperphosphatemia ... metastases, Hungry bone syndrome ... Diagnosis #Algorithm #nephrology
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Hypophosphatemia ... , TIO, Fanconi Syndrome ... Zalman Agus #Hypophosphatemia ... #phosphorus #low ... #differential #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... Tumor genesis syndrome ... • Normal or Low ... - Normal or Low ... Workup #phosphate #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia ... Appropriately Low ... Tumor Genesis Syndrome ... , CAR-T cell #Hypophosphatemia ... Diagnosis #Algorithm #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
= (urine magnesium ... )/ [0.7 (serum magnesium ... loss, shift of magnesium ... diagnosis #causes #nephrology ... #magnesium #low
Distribution of Magnesium in the Body
66% in Bones
33% in Muscles
1% in Serum
 • 60-70% Free (ionized)
Distribution of Magnesium ... 10% Complexed w/ low ... deniise_am #Magnesium ... Distribution #Mg #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Hypophosphatemia ... ), Hungry bone syndrome ... DTomacruzMD #Hypophosphatemia ... Algorithm #causes #nephrology
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Familial: Bartter syndrome ... and Gitelman syndrome ... diagnosis #causes #nephrology ... #magnesium #low
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
metastasis (hungry bone syndrome ... depletion, Familial hypophosphatemia ... Endocrine disorders: Syndrome ... differential #diagnosis #nephrology ... #magnesium #low
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
Workup for Hyperphosphatemia ... Rule out spurious hyperphosphatemia ... Rhabdomyolysis, Tumor lysis syndrome ... @aishaikh #Hyperphosphatemia ... Workup #phosphate #nephrology