23 results
Hormonal Regulation of the Blood Calcium concentration

#Calcium #Regulation #Parathyroid #Calcitonin #Calcitriol #PTH #Endocrinology #Pathophysiology #Hormones
Hormonal Regulation ... of the Blood Calcium ... concentration #Calcium ... Parathyroid #Calcitonin #Calcitriol ... #PTH #Endocrinology
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Evaluation Serum levels ... Hypoparathyroidism - Calcium-sensing ... - Parathyroid hormone ... Hyperparathyroidism #Diagnosis #Endocrinology ... #Differential
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypomagnesemia (Serum level ... Abnormalities of calcium ... • Parathyroid hormone ... Decreased synthesis of calcitriol
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup and Differential ... Assess for other hormonal ... Assess for non-hormonal ... Diagnosis #algorithm #endocrinology ... #calcium
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... PTH: • Elevated Calcitriol ... Bony Mets - Calcium ... Hypercalcemia #Differential ... Algorithm #causes #endocrinology
Calcium homeostasis is a process controlled by chiefly by hormones vitamin D and PTH. 
Vitamin D
Calcium homeostasis ... by chiefly by hormones ... increase serum calcium ... circulating vitamin D levels ... Pathophysiology #Endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - Differential ... Autosomal Dominant Calcium ... Excess Vitamin D/Calcitriol ... Other • Excess Calcium ... Diagnosis #Algorithm #Endocrinology
Radial Fracture Due to Parathyroid Carcinoma- ...A plain radiograph of the left arm showed a diaphyseal
intact parathyroid hormone ... 65) and a serum calcium ... ’s parathyroid hormone ... milliliter and his calcium ... #clinical #radiology
Hirsutism & Virilization - Differential Diagnosis Algorithm
ADRENAL EXCESS
Ovarian
 • Polycystic Ovarian Syndrome
 • Hyperthecosis
 • Tumor
Adrenal
Virilization - Differential ... Tumor Low Serum Hormone ... Cycles and Androgen Levels ... #Virilization #Differential ... Diagnosis #Algorithm #endocrinology
Myoedema in Hypothyroidism on Physical Exam

Hypothyroidism is a clinical syndrome resulting from the production, secretion or
action of thyroid hormones ... , with varied clinical ... receptors for thyroid hormone ... delayed uptake of calcium ... video #neurology #endocrinology