41 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory ... : - Hypoparathyroidism ... - Calcium-sensing ... Laboratory #Levels #Hyperparathyroidism ... #Diagnosis #Endocrinology
Indications for Parathyroidectomy in Primary Hyperparathyroidism
 • All patients with symptomatic PHPT
 • Serum calcium 1
Parathyroidectomy in Primary Hyperparathyroidism ... • Serum calcium ... nephrocalcinosis, 24h urine calcium ... #endocrinology ... #management #Hyperparathyroidism
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
Hypocalcemia - Differential ... Activating Mutation in Calcium ... ) • Calcium ... Poisoning #Hypocalcemia ... Algorithm #Phosphate #endocrinology
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Hypercalcemia ... resorption: • Primary hyperparathyroidism ... histoplasmosis) • Milk (calcium ... differential #diagnosis #calcium ... #high #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Algorithm Primary Hyperparathyroidism ... and 2A Tertiary Hyperparathyroidism ... Autosomal Dominant Calcium ... Other • Excess Calcium ... Diagnosis #Algorithm #Endocrinology
Initial treatment of renal bone disease and cinacalcet for secondary hyperparathyroidism
Phosphate binders reduce hyperphosphataemia and hyperparathyroidism.
for secondary hyperparathyroidism ... Calcium-containing ... binders also improve hypocalcaemia ... Calcitriol improves hypocalcaemia ... and hyperparathyroidism
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... normal): • Primary Hyperparathyroidism ... Hypocalciuric Hypercalcemia ... Bony Mets - Calcium ... Algorithm #causes #endocrinology
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
dysrhythmias Hypokalemia ... Abnormalities of calcium ... metabolism • Hypocalcemia ... • Hypoparathyroidism
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Hyperparathyroidism ... : ↑→PTH, ↑Calcium ... : ↑PTH, ↓→Calcium ... : ↑↑PTH, ↑Calcium ... #diagnosis #endocrinology
Hypocalcemia Differential Diagnosis Algorithm
 - Magnesium deficiency
 - Hypoparathyroidism 
 - Hypoalbuminemia (Pseudohypocalcemia)
 - Vitamin D
Hypocalcemia Differential ... deficiency - Hypoparathyroidism ... ARUPConsult @ARUPLabs #Hypocalcemia ... Diagnosis #Algorithm #endocrinology