2961 results
Causes of B12 deficiency. 

This great diagram shows normal absorption and outlines most possible causes. At
Causes of B12 deficiency ... diagram shows normal absorption ... most possible causes ... in the distal ileum ... #Differential #Causes
Normal Vitamin and Mineral Absorption

#Diagnosis #Absorption #Nutrient #Mineral #Vitamin #Duodenum #Ileum #Jejunum #Location #Map #Gastrointestinal
Vitamin and Mineral Absorption ... #Diagnosis #Absorption ... Vitamin #Duodenum #Ileum
Gastrointestinal tract absorption. 

#Absorption #Nutrient #Mineral #Vitamin #Duodenum #Ileum #Jejunum #Location #Map #Gastrointestinal #Diagnosis #ShortGut #SBS
Gastrointestinal tract absorption ... #Absorption #Nutrient ... Vitamin #Duodenum #Ileum
Nutrient Absorption After Gastric Bypass Surgery

#Diagnosis #Absorption #Nutrient #Mineral #Vitamin #Gastric #Bypass #Duodenum #Ileum #Jejunum #Location
Nutrient Absorption ... #Diagnosis #Absorption ... Bypass #Duodenum #Ileum
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
intestinal calcium absorption ... and stimulates resorption ... Stimulate calcium reabsorption ... kidney, Stimulates resorption
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
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Causes of Hypercalcemia ... increased bone Ca2+ resorption ... increased GI Ca2+ absorption ... Hypercalcemia #Causes
Fluid and Water Secretion and Absorption in the GI Tract

#Fluid #water #Secretion #Absorption #reabsorption #GITract #diagnosis
Secretion and Absorption ... water #Secretion #Absorption ... #reabsorption #
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Miscellaneous - Bone Resorption ... - Calcium Reabsorption ... Diagnosis #Algorithm #causes