48 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
levels of PTH, phosphorus ... dihydroxyvitamin D can help differentiate ... : - Hypoparathyroidism ... Laboratory #Levels #Hyperparathyroidism ... Endocrinology #Differential
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Redistribution - 1° HPT ... , TIO, Fanconi Syndrome ... Hypophosphatemia #phosphorus ... diagnosis #Algorithm #differential ... #nephrology
Multiple Endocrine Neoplasias (MEN syndromes) 

MEN I
• Hyperparathyroidism 
• Hypercalcemia 
• Possible ZE syndrome 
• Various
) MEN I • Hyperparathyroidism ... • Hypercalcemia ... MEN IIa • Hyperparathyroidism ... • Hypercalcemia ... MultipleEndocrineNeoplasia #Differential
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
- Differential ... Normal PTH: • Hyperparathyroidism ... disease, Viral Syndromes ... #Differential # ... Algorithm #Workup #nephrology
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
Hypocalcemia - Differential ... Phenytoin, Nephrotic Syndrome ... Low PTH • Hypoparathyroidism ... Poisoning #Hypocalcemia ... #Differential #
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Hypercalcemia - ... Findings Causes of Hypercalcemia ... • Milk-alkali syndrome ... Paget's disease • Hyperparathyroidism ... Electrocardiogram #Differential
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup ... - Differential ... metastases, Hungry bone syndrome ... #Workup #Differential ... Diagnosis #Algorithm #nephrology
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 ... hypocalciuric hypercalcemia ... Other humoral syndromes ... disease - Williams syndrome ... #Causes #Differential
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia - Differential ... Vitamin D: Primary Hyperparathyroidism ... Hypophosphatemia #Differential ... Diagnosis #Algorithm #nephrology ... #phosphorus #workup
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Hypomagnesemia - Differential ... Familial: Bartter syndrome ... and Gitelman syndrome ... with secondary, hypocalcemia ... diagnosis #causes #nephrology