13 results
Hormonal Regulation of the Blood Calcium concentration

#Calcium #Regulation #Parathyroid #Calcitonin #Calcitriol #PTH #Endocrinology #Pathophysiology #Hormones
Hormonal Regulation ... #Parathyroid #Calcitonin ... #Calcitriol #PTH ... Pathophysiology #Hormones
Effects of Parathyroid hormone (PTH) and Calcitonin on Calcium and Phosphate Metabolism

#Parathyroid #hormone #PTH #Calcitonin #phosphate
of Parathyroid hormone ... (PTH) and Calcitonin ... #Parathyroid #hormone ... #PTH #Calcitonin
Hypercalcemia - Hormones and Pathophysiology  
Calcitriol:
 • Bones: Enhances mineralization
 • GI Tract: ↑ Ca2+
Hypercalcemia - Hormones ... Pathophysiology Calcitriol ... Ca2+, ↑ PO4- PTH ... Ca2+, ↓ PO4- Calcitonin ... Hypercalcemia #Hormones
Multiple Endocrine Neoplasias (MEN syndromes) 

MEN I
• Hyperparathyroidism 
• Hypercalcemia 
• Possible ZE syndrome 
• Various
Various Pituitary path ... • Increased calcitonin ... • Increased calcitonin ... MultipleEndocrineNeoplasia #Differential
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Algorithm Elevated PTH ... Hypercalcemia Low PTH ... : • Elevated Calcitriol ... Hypercalcemia #Differential
Hypocalcemia Evaluation Algorithm 

(PTH = parathyroid hormone.)

#Hypocalcemia #Evaluation #Algorithm #Diagnosis #Differential
Algorithm (PTH ... = parathyroid hormone ... Algorithm #Diagnosis #Differential
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Hypercalcemia - Differential ... High or Normal PTH ... Hypercalcemia Low PTH ... diseases, Idiopathic calcitriol ... Hypercalcemia #Differential
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 ... Mechanism #Frequency #Differential
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup and Differential ... Determine whether PTH-dependent ... Assess for other hormonal ... Assess for non-hormonal ... Hypercalcemia #Workup #Differential
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Serum levels of PTH ... dihydroxyvitamin D can help differentiate ... - Parathyroid hormone ... Endocrinology #Differential