21 results
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
PTH) Effect in Calcium ... and Phosphorus Calcium ... - Net Effect Hypercalcemia ... #Phosphorus #pathophysiology ... #endocrinology
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup ... and Differential ... #Workup #Differential ... Diagnosis #algorithm #endocrinology ... #calcium
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
of Drug-Induced Hyperkalemia ... MunerMohamed1 #hyperkalemia ... #differential # ... diagnosis #pathophysiology ... #pharmacology #
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Hypercalcemia ... histoplasmosis) • Milk (calcium ... #Causes #differential ... #diagnosis #calcium ... #high #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Differential Diagnosis ... Bony Mets - Calcium ... #Differential # ... Algorithm #causes #endocrinology
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
Hypercalcemia of ... Malignancy - Pathophysiology ... and intestinal calcium ... Mediated - Stimulate calcium ... #Differential #
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
Hypercalcemia Evaluation ... Vit D • If all ... #workup #differential ... #diagnosis #endocrinology ... #calcium #elevated
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Differential Diagnosis ... Autosomal Dominant Calcium ... Other • Excess Calcium ... #Differential # ... Diagnosis #Algorithm #Endocrinology
Hyperuricemia - Differential Diagnosis Algorithm
Primary - Over-production
     • Increased turnover of nucleotides
Primary
Hyperuricemia - Differential ... Sarcoidosis • Hypercalcemia ... drugs • ACE ... Hyperuricemia #Differential ... Diagnosis #Algorithm #endocrinology
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Aldosterone Release: ACE ... happypillsrx/ #Hyperkalemia ... #Pathophysiology ... #Pharmacology #