17 results
Calcium Homeostasis

Serum Calcium - PTH - Vitamin D Regulation

#Calcium #Homeostasis #Pathophysiology #Autoregulation #VitaminD #PTH #Endocrinology
Serum Calcium ... - PTH - Vitamin ... #Homeostasis #Pathophysiology ... Autoregulation #VitaminD ... #PTH #Endocrinology
Calcium homeostasis is a process controlled by chiefly by hormones vitamin D and PTH. 
Vitamin D
Calcium homeostasis ... increase serum calcium ... #Pathophysiology ... #Endocrinology ... #Calcium #Homeostasis
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
, ↑Vitamin D, ↓Phosphate ... , ↓Vitamin D, ↑↓ ... , ↓Vitamin D, ↑Phosphate ... Hyperparathyroidism #diagnosis #endocrinology ... Secondary #Tertiary #pathophysiology
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
Bypass Fat-Soluble Vitamins ... : • Vitamin A - ... • Thiamine - Nausea ... , Elements: • Calcium ... #nutrition #table
Rachitic Rosary of Rickets on Physical Exam

Bead-like prominences of bone are seen at the costochondral joints.
A lack of calcium ... mineralization causes ... #chest #Ribs #VitaminD ... #deficiency #endocrinology
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Causes of Hypercalcemia ... alkali syndrome • Vitamin ... Hypercalcemia #Causes ... differential #diagnosis #calcium ... #high #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Cholecalciferol - Excess Vitamin ... Bony Mets - Calcium ... Diagnosis #Algorithm #causes ... #endocrinology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... Lithium use • Calcium-sensing ... hypercalcemia Vitamin ... Hypercalcemia #Causes ... #endocrinology
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Hyperparathyroidism • Vitamin ... • Acute Volume Expansion ... Diagnosis #Algorithm #endocrinology ... #causes
Refeeding Syndrome Overview

What Is It?
	• Electrolyte/fluid shifts caused by initiation of nutrition in severely malnourished patient.
initiation of nutrition ... Hypo-Mg2+ • Vitamin ... • Pellagra • Vitamin ... Refeeding #Syndrome #Nutrition ... Differential #Diagnosis #Pathophysiology