2315 results
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 ... Pathophysiology #Differential
First10EM Post Intubation Checklist
#Management #Airway #CriticalCare #PostIntubation #Checklist #First10EM
First10EM Post Intubation ... PostIntubation #Checklist #First10EM
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
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Miscellaneous - Bone Resorption ... - Calcium Reabsorption ... Hypercalcemia #Differential
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
The Pathophysiology of Fat Absorption and Causes of Malabsorption (steatorrhoea)

#Fat #Malabsorption #Pathophysiology #Differential #Steatorrhea #Diarrhea #Diagnosis
Pathophysiology of Fat Absorption ... Pathophysiology #Differential
The following table from MacGregor (1997) summarizes the bioavailability of many commonly used antibiotics:
#EBM #Pharmacology #InfectiousDiseases
#Antibiotics #Absorption ... Bioavailability #Table #first10em
Normal Vitamin and Mineral Absorption

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