31 results
Hormonal Regulation of the Blood Calcium concentration

#Calcium #Regulation #Parathyroid #Calcitonin #Calcitriol #PTH #Endocrinology #Pathophysiology #Hormones
Hormonal Regulation ... Calcium #Regulation #Parathyroid ... #Calcitonin #Calcitriol ... #PTH #Endocrinology ... Pathophysiology #Hormones
Hypocalcemia Evaluation Algorithm 

(PTH = parathyroid hormone.)

#Hypocalcemia #Evaluation #Algorithm #Diagnosis #Differential
Hypocalcemia Evaluation ... Algorithm (PTH ... = parathyroid hormone ... #Algorithm #Diagnosis ... #Differential
Hypercalcemia Evaluation Algorithm 

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

#Hypercalcemia #Evaluation #Algorithm #Diagnosis
Hypercalcemia Evaluation ... Algorithm (PTH ... = parathyroid hormone ... hormone–related ... #Algorithm #Diagnosis
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Hypercalcemia - Differential ... Diagnosis Algorithm ... diseases, Idiopathic calcitriol ... Hypercalcemia #Differential ... #Diagnosis #Algorithm
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory Evaluation ... Serum levels of PTH ... activating mutation - Parathyroid ... hormone resistance ... Hyperparathyroidism #Diagnosis
Mechanism of malignancy-associated hypercalcemia. Abbreviations: 1,25(OH)2D, 1,25-dihydroxyvitamin D; NHL, non-Hodgkin lymphoma; PTH, parathyroid hormone; PTHrP, PTH-related
non-Hodgkin lymphoma; PTH ... , parathyroid hormone ... ; PTHrP, PTH-related ... #Pathophys #Diagnosis ... Mechanism #Frequency #Differential
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypoparathyroidism • Parathyroid ... hormone resistance ... Decreased synthesis of calcitriol ... Signs #Symptoms #Diagnosis
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
Diagnostic algorithm ... The diagnostic workup ... measurement of parathyroid ... hormone (PTH) to ... #Workup #Differential
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Hypercalcemia Parathyroid ... adenoma • Parathyroid ... prostate (release of calcitriol ... endocrinology #diagnosis ... #differential
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Diagnosis Algorithm ... Elevated PTH (High ... Hypercalcemia Low PTH ... : • Elevated Calcitriol