47 results
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Appropriately Low Kidney Phosphate ... • Decreased GI Absorption ... Diarrhea, Antacids, Phosphate ... Binders, Vitamin D Deficiency ... Vitamin D: Vit D Deficiency
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Acidosis • Insulin Deficiency ... Increased Intake / Absorption ... Hypervitaminosis D • Phosphate ... Supplementation • Phosphate
Pharmacology of diuretics

Acetazolamide, Loop diuretics, Thiazide‐like diuretics, MRA, Amiloride

Site of Action, Maximum Dose, Half-Life, Onset, Bioavailability,
Half-Life, Onset, Bioavailability ... , Absorption #
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Fractional Excretion of Phosphate ... diarrhea, Poor absorption ... Niacin, Vitamin D deficiency ... hyperparathyroidism, Vitamin D deficiency ... Framework #Workup #phosphate
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
heparin Acute Phosphate ... Exogenous: Excessive phosphate ... intake, Phosphate ... Increased Renal Phosphate ... Absorption:
Hypophosphatemia - Measurement of urine phosphate excretion - Differential Diagnosis Algorithm
 • GI loss
 • Redistribution
Measurement of urine phosphate ... Hyperparathyroidism • Vit D deficiency ... urine #urinary #phosphate
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypoparathyroidism • High Phosphate ... , HIV • High Phosphate ... resistance, Vitamin D deficiency ... , CKD • Low Phosphate ... - Vitamin D deficiency
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
Low Alkaline Phosphatase ... Is Low Alkaline Phosphatase ... hypothyroidism • Zinc deficiency ... • Vitamin C deficiency ... Pernicious anemia/B12 deficiency
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Positive Alkaline Phosphatase ... • Vitamin D Deficiency ... Mineralization Defect • Phosphate ... Deficiency Primary
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
- Low and High Phosphate ... LOW PHOSPHATE ... • Vitamin D Deficiency ... alpha-hydroxylase Deficiency ... HIGH PHOSPHATE