259 results
Hypercalcemia Evaluation Algorithm 

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

#Hypercalcemia #Evaluation #Algorithm #Diagnosis
Hypercalcemia Evaluation ... Algorithm (PTH = parathyroid ... hormone; PTHrp: parathyroid ... #Hypercalcemia #
Hypocalcemia Evaluation Algorithm 

(PTH = parathyroid hormone.)

#Hypocalcemia #Evaluation #Algorithm #Diagnosis #Differential
Hypocalcemia Evaluation ... Algorithm (PTH = parathyroid ... #Hypocalcemia #Evaluation
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Workup of Hypercalcemia ... Hyperparathyroidism: Parathyroid ... adenoma, Parathyroid ... hyperplasia, Parathyroid ... nephrology #PTH #parathyroid
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
dysrhythmias Hypokalemia ... metabolism • Hypocalcemia ... Hypoparathyroidism • Parathyroid
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Parathyroid gland ... adenoma • Parathyroid ... hypocalciuric hypercalcemia ... Milk-alkali syndrome #Hypercalcemia
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 ... activating mutation - Parathyroid ... kidney disease #Hypocalcemia
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 ... hypocalciuric hypercalcemia ... hyperparathyroidism) Parathyroid ... Neoplasms - Parathyroid
Mechanism of malignancy-associated hypercalcemia. Abbreviations: 1,25(OH)2D, 1,25-dihydroxyvitamin D; NHL, non-Hodgkin lymphoma; PTH, parathyroid hormone; PTHrP, PTH-related
malignancy-associated hypercalcemia ... lymphoma; PTH, parathyroid ... Pathophys #Diagnosis #Hypercalcemia
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
Causes of Hypocalcemia ... Family history of hypocalcemia ... Low or absent parathyroid ... hormone with parathyroid ... hyperparathyroidism #Hypocalcemia
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
Parathyroid Hormone ... Calcium - Net Effect Hypercalcemia ... mendesthiagob #Parathyroid