59 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
dihydroxyvitamin D can help differentiate ... : - Hypoparathyroidism ... activating mutation - Parathyroid ... Laboratory #Levels #Hyperparathyroidism ... Endocrinology #Differential
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
Hypocalcemia - Differential ... Malnutrition with Hypomagnesemia ... (CaSR) • Hypomagnesemia ... Poisoning #Hypocalcemia ... #Differential #
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
- Differential ... Normal PTH: • Hyperparathyroidism ... Low PTH: • High ... PTHrP: - Low ... #Differential #
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Hypocalcemia - Differential ... - Hypoparathyroidism ... Destruction of parathyroid ... sunlight • Other Causes ... #Differential #
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Differential Diagnosis ... with secondary, hypocalcemia ... pentamidine), Hypercalcemia ... #differential # ... nephrology #magnesium #low
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 ... Primary hyperparathyroidism ... hypocalciuric hypercalcemia ... #Causes #Differential
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Causes of Hypercalcemia ... structure-related • Primary hyperparathyroidism ... disease • Tertiary hyperparathyroidism ... #Causes #endocrinology ... #diagnosis #differential
Causes of Hypocalcemia - Differential Diagnosis Algorithm
 • Extravascular: Pancreatitis, surgery, acute phosphate intake and renal
Causes of Hypocalcemia ... - Differential ... Hyperphosphatemia, Low ... PTH: Hypoparathyroidism ... contrast agents • Hypomagnesemia
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypomagnesemia ( ... metabolism • Hypocalcemia ... • Hypoparathyroidism ... • Parathyroid ... calcitriol #Hypomagnesemia
Causes of Hypocalcemia by Clinical Cause

Acute illness: pancreatitis, tumor lysis, severe illness - Secondary hyperparathyroidism from
Causes of Hypocalcemia ... illness - Secondary hyperparathyroidism ... from low circulating ... Neck surgery - Low ... #Causes #Differential