3404 results
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
intestinal calcium absorption ... and stimulates resorption ... kidney, Stimulates resorption ... Pathophysiology #Differential ... #Diagnosis #algorithm
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Hypophosphatemia - Differential ... Diagnosis Algorithm ... Decreased intake/absorption ... Hypophosphatemia #Differential ... #Diagnosis #Algorithm
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Hyperphosphatemia - Differential ... Diagnosis Algorithm ... Increased Intake / Absorption ... HighPhosphate #Differential ... #Diagnosis #Algorithm
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia - Differential ... Diagnosis Algorithm ... • Decreased GI Absorption ... Hypophosphatemia #Differential ... #Diagnosis #Algorithm
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
Iron Deficiency - Differential ... Diagnosis Algorithm ... loss of sites of absorption ... Iron #Deficiency #Differential ... Diagnosis #Causes #Fe #algorithm
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Diagnosis Algorithm ... - Calcium Reabsorption ... Hypercalcemia #Differential ... #Diagnosis #Algorithm
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
↑ intestinal absorption ... ↑ bone reabsorption ... ↑ tubular reabsorption ... Hypophosphatemia: ↑ bone reabsorption ... ↓↓ tubular reabsorption
Hypercalcemia - Hormones and Pathophysiology  
Calcitriol:
 • Bones: Enhances mineralization
 • GI Tract: ↑ Ca2+
Tract: ↑ Ca2+ absorption ... , ↑ PO4- absorption ... , ↑ PO4- reabsorption ... Tract: ↓ Ca2+ absorption ... , PO4- reabsorption
Fluid and Water Secretion and Absorption in the GI Tract

#Fluid #water #Secretion #Absorption #reabsorption #GITract #diagnosis
Secretion and Absorption ... water #Secretion #Absorption ... #reabsorption #
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
increased bone Ca2+ resorption ... increased GI Ca2+ absorption ... Hypercalcemia #Causes #differential