Estradiol, Pediatric

• CPT Code: 82670
• LOINC: 2243-4
• Specimen Type: Red or Gel Clot
• Frequency: Setup: Mon-Fri; Analytic time 2 days
• Instructions: 1.2mL serum from red, refrigerated. Min 0.8mL. For adults order ESTRA. Should be centrifuged and aliquoted within 2 hrs of coll.
• Text: Uses: As part of the diagnosis and work-up of precocious and delayed puberty in females, and, to a lesser degree, males; As part of the diagnosis and work-up of suspected disorders of sex steroid metabolism,eg, aromatase deficiency and 17 alpha-hydroxylase deficiency.
• Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)