34 results
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Hypophosphatemia ... Redistribution - 1° HPT ... - 1° Renal PO4 ... diagnosis #Algorithm #differential ... #nephrology
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
- Differential ... Kidney Disease: • AKI ... CKD Increased Renal ... Absorption: • Hypoparathyroidism ... Workup #phosphate #nephrology
Causes of Hypocalcemia - Differential Diagnosis Algorithm
 • Extravascular: Pancreatitis, surgery, acute phosphate intake and renal
Hypocalcemia - Differential ... phosphate intake and renal ... , Low PTH: Hypoparathyroidism ... • Hypophosphatemia ... #Hypocalcemia #Differential
Hypophosphatemia - Measurement of urine phosphate excretion - Differential Diagnosis Algorithm
 • GI loss
 • Redistribution
Hypophosphatemia ... phosphate excretion - Differential ... Redistribution • Primary Hyperparathyroidism ... deficiency • Primary Renal ... PO4 wasting #Hypophosphatemia
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Hypophosphatemia ... - Differential ... Increased Excretion - Renal ... PO4 > 5%: • Hyperparathyroidism ... #LowPhosphate #Differential
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
- Differential ... PO4 < 20%: • Renal ... Disease • Hypoparathyroidism ... • Pseudo-hypoparathyroidism ... Context of Impaired Renal
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
- Differential ... FEPO4 ≥ 5% - Renal ... Primary or Tertiary hyperparathyroidism ... #Differential # ... Workup #phosphate #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia ... - Differential ... Vitamin D: Primary Hyperparathyroidism ... , TKI, ALK inhibitor ... Diagnosis #Algorithm #nephrology
Causes of acute kidney injury (AKI). AKI is classified into pre-renal, renal, and post-renal causes. Renal
kidney injury (AKI ... AKI is classified ... renal, and post-renal ... Kidney #Injury #Differential ... Causes #Sites #Nephrology
Acute Kidney Injury (AKI) - Differential Diagnosis Framework

PRE-Renal AKI:
 • Hypovolemia
 • Congestion
 • Medications
 •
) - Differential ... Framework PRE-Renal ... Shunting INTRA-Renal ... Kidney #Injury #Differential ... #Diagnosis #nephrology