12 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory Evaluation ... Hypoparathyroidism - Calcium-sensing ... Chronic kidney disease ... Hyperparathyroidism #Diagnosis #Endocrinology ... #Differential
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
failure, Addison's disease ... Granulomatous diseases ... Hypercalcemia #Causes #differential ... #diagnosis #calcium ... #high #endocrinology
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
Hypocalcemia - Differential ... Hepatobiliary Disease ... Chronic Kidney Disease ... #Hypocalcemia #Differential ... Algorithm #Phosphate #endocrinology
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
Hypercalcemia Evaluation ... PTH - Frankly high ... Hypercalcemia #workup #differential ... #diagnosis #endocrinology ... #calcium #elevated
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Elevated PTH (High ... Granulomatous Disease ... Bony Mets - Calcium ... Algorithm #causes #endocrinology
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... Patients for Thyroid Disease ... Hyperthyroidism: • Graves disease ... #hyperthyroid #differential ... #diagnosis #endocrinology
Causes of Wide Pulse Pressure - Differential Diagnosis
Physiologic:
 • Advanced age-arteriosclerosis (less compliant arteries)
 • Well
Pulse Pressure - Differential ... Hyperdynamic circulation/High ... Chronic pulmonary diseases ... Vasoplegia • Sepsis ... Diagnosis #causes #cardiology
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
consistent with Calcium ... adjacent to the Calcium ... - Limits evaluation ... Differential diagnosis ... tenosynovitis: Differentiate
Myasthenic Crisis Checklist - Myasthenia Gravis

Evaluation 
 - Chest X-ray and lung ultrasound (exclude other lung
Myasthenia Gravis Evaluation ... Phos), CBC with differential ... unless extremely high ... Beta-blockers, calcium ... anticholinergics, high-dose
Widened Pulse Pressure - Differential Diagnosis and Pathophysiology

Pulse pressure is the difference between the systolic blood
Hyperdynamic circulation/High ... Chronic pulmonary diseases ... Vasoplegia • Sepsis ... coronary heart disease ... Pathophysiology #causes #cardiology