9 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory Evaluation ... dihydroxyvitamin D can help differentiate ... Hypoparathyroidism - Calcium-sensing ... Hyperparathyroidism #Diagnosis #Endocrinology ... #Differential
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
Hypercalcemia Evaluation ... Hypercalcemia #workup #differential ... #diagnosis #endocrinology ... #calcium #elevated ... #evaluation #workup
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - Differential ... Diagnosis Algorithm Elevated ... Bony Mets - Calcium ... Hypercalcemia #Differential ... Algorithm #causes #endocrinology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... “Pseudogout” - Calcium ... Reiter’s syndrome) Aseptic ... Bowel Disease - Arthropathy ... Disorders #msk #Differential
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
consistent with Calcium ... adjacent to the Calcium ... - Limits evaluation ... severe destructive arthropathy ... Differential diagnosis
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Lithium use • Calcium-sensing ... • Sarcoidosis (elevated ... Hypercalcemia #Causes #endocrinology ... #diagnosis #differential
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... some cases, T3 is elevated ... ; TRAbs or TSI elevated ... #hyperthyroid #differential ... #diagnosis #endocrinology
Causes of Hypocalcemia - Differential Diagnosis
Decreased calcium absorption
 • Vitamin D deficiency
    -
Hypocalcemia - Differential ... Diagnosis Decreased calcium ... Syndromes Increased calcium ... Miscellaneous • Sepsis ... Diagnosis #Causes #endocrinology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... deviation • Jaccoud arthropathy ... sediment, and elevated ... , APLA, PAC • Aseptic