8 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Serum levels of PTH ... : - Hypoparathyroidism ... - Calcium-sensing ... activating mutation - Parathyroid ... #Diagnosis #Endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
): • Primary Hyperparathyroidism ... Low PTH: • Elevated ... Bony Mets - Calcium ... #Algorithm #causes ... #endocrinology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Lithium use • Calcium-sensing ... • Sarcoidosis (elevated ... #Causes #endocrinology ... #diagnosis #differential
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Hypocalcemia - Differential ... Diagnosis Algorithm ... Level Elevated ... Destruction of parathyroid ... #Algorithm #causes
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
Causes of Hypocalcemia ... illness - Secondary hyperparathyroidism ... low circulating calcium ... Genetic defects in calcium-sensing ... #Diagnosis #Endocrinology
Radial Fracture Due to Parathyroid Carcinoma- ...A plain radiograph of the left arm showed a diaphyseal
had received a diagnosis ... 65) and a serum calcium ... which is a rare cause ... manifest as markedly elevated ... #clinical #radiology
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
1) Clinical clues ... 2) PTH - Frankly ... #differential #diagnosis ... #endocrinology ... #calcium #elevated
Causes of Hypocalcemia - Differential Diagnosis
Decreased calcium absorption
 • Vitamin D deficiency
    -
Causes of Hypocalcemia ... - Differential Diagnosis ... Decreased calcium ... resorption • Hypoparathyroidism ... #Causes #endocrinology