327 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory ... disorders causing hypocalcemia ... : - Hypoparathyroidism ... activating mutation - Parathyroid ... Laboratory #Levels #Hyperparathyroidism
Causes of Hypercalcemia
Parathyroid hormone–dependent
Primary hyperparathyroidism
Familial hypocalciuric hypercalcemia
Lithium-associated
Tertiary hyperparathyroidism
Genetic disorders (e.g., multiple endocrine neoplasia type 1 or
Causes of Hypercalcemia ... Parathyroid hormone–dependent ... Primary hyperparathyroidism ... hypocalciuric hypercalcemia ... Neoplasms - Parathyroid
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Normal PTH: • Hyperparathyroidism ... : Parathyroid adenoma ... , Parathyroid hyperplasia ... , Parathyroid carcinoma ... nephrology #PTH #parathyroid
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... structure-related • Primary hyperparathyroidism ... hypocalciuric hypercalcemia ... disease • Tertiary hyperparathyroidism ... Milk-alkali syndrome #Hypercalcemia
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
Causes of Hypocalcemia ... illness - Secondary hyperparathyroidism ... Family history of hypocalcemia ... disease - Secondary hyperparathyroidism ... #Hypocalcemia
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Hypocalcemia - Differential ... Elevated - Secondary Hyperparathyroidism ... Inappropriately Normal/Low - Hypoparathyroidism ... Destruction of parathyroid ... emoryimchiefs #Hypocalcemia
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
metabolism • Hypocalcemia ... • Hypoparathyroidism ... • Parathyroid
Hypercalcemia Evaluation Algorithm 

(PTH = parathyroid hormone; PTHrp: parathyroid hormone–related peptide.)

#Hypercalcemia #Evaluation #Algorithm #Diagnosis
Hypercalcemia Evaluation ... Algorithm (PTH = parathyroid ... hormone; PTHrp: parathyroid ... #Hypercalcemia #
Differential Diagnosis of Hypo and Hypercalcemia #Diagnosis #EM #IM #Differential #Calcium #Hypocalcemia #Hypercalemia #Ddxof
Diagnosis of Hypo and Hypercalcemia ... Differential #Calcium #Hypocalcemia ... #Hypercalemia #
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - ... Algorithm Primary Hyperparathyroidism ... and 2A Tertiary Hyperparathyroidism ... • Hypercalcemia ... long-standing secondary hyperparathyroidism