30 results
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
Parathyroid Hormone ... - Net Effect Hypercalcemia ... #Hormone #PTH # ... #Phosphorus #pathophysiology ... #endocrinology
Hormonal Regulation of the Blood Calcium concentration

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

#Parathyroid #hormone #PTH #Calcitonin #phosphate
Effects of Parathyroid ... hormone (PTH) and ... Calcitonin on Calcium ... phosphate #metabolism #pathophysiology ... #endocrinology
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 ... hormone–independent ... hormone–related ... Differential #Diagnosis #Endocrinology
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory ... Hypoparathyroidism - Calcium-sensing ... activating mutation - Parathyroid ... hormone resistance ... Hyperparathyroidism #Diagnosis #Endocrinology
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
low circulating calcium ... hormone secretion ... Malabsorption syndrome ... hormone with parathyroid ... Differential #Diagnosis #Endocrinology
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Hypercalcemia ... histoplasmosis) • Milk (calcium ... )-alkali syndrome ... differential #diagnosis #calcium ... #high #endocrinology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Lithium use • Calcium-sensing ... • Milk-alkali syndrome ... #Hypercalcemia ... #Causes #endocrinology
Hypocalcemia is an electrolyte imbalance and is indicated by a low level of calcium in the
Hypocalcemia is ... a low level of calcium ... Calcium is important ... the actions of parathyroid ... hormone (PTH),
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup ... Assess for other hormonal ... Assess for non-hormonal ... Diagnosis #algorithm #endocrinology ... #calcium