23 results
Chvostek's Sign - Physical Exam - Hypocalcemia

Chvostek's sign is described as the twitching of facial muscles
Chvostek's Sign ... Chvostek's sign ... absent in about one ... persons with normal calcium ... Video #Clinical #endocrinology
Parathyroid Hormone (PTH) Effect in Calcium and Phosphorus
Calcium - Net Effect Hypercalcemia:
   ↑ intestinal
- Net Effect Hypercalcemia ... absorption ↑ bone ... Hypophosphatemia: ↑ bone ... #Phosphorus #pathophysiology ... #endocrinology
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Hypercalcemia ... due to increased bone ... histoplasmosis) • Milk (calcium ... differential #diagnosis #calcium ... #high #endocrinology
Chvostek sign in Hypocalcemia
The Chvostek sign is a contraction of ipsilateral facial muscles subsequent to percussion
Chvostek sign in ... Hypocalcemia The ... Chvostek sign is ... with normal serum calcium ... clinical #video #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Autosomal Dominant Calcium ... Cytokine-Mediated Bone ... Lymphomas) Metastatic Bone ... Other • Excess Calcium ... Diagnosis #Algorithm #Endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Miscellaneous - Bone ... Hyperthyroid, Bony ... Mets - Calcium ... Algorithm #causes #endocrinology
Chvostek Sign on Physical Exam

Young man presented with history of fatigue, muscle cramps and features suggestive
Chvostek Sign on ... total and ionized calcium ... #Chvostek #Sign ... Clinical #Video #Hypocalcemia ... #endocrinology
Chvostek Sign of Hypocalcemia on Physical Exam

#Chvostek #Sign #Hypocalcemia #PhysicalExam #clinical #video #endocrinology #calcium
Chvostek Sign of ... Hypocalcemia on ... #Sign #Hypocalcemia ... clinical #video #endocrinology ... #calcium
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
Hypercalcemia of ... Malignancy - Pathophysiology ... and intestinal calcium ... resorption in the bone ... resorption in the bone
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Hyperparathyroidism: ↑→PTH, ↑Calcium ... signs, Fragile bones ... easily/weakness, Bone ... Hyperparathyroidism #diagnosis #endocrinology ... Secondary #Tertiary #pathophysiology