Test Directory

Test Code
LHPED
Test Name
Luteinizing Hormone, Pediatrics
CPT Codes
83002
Expected Turnaround Time
5 - 10 days
Clinical Utility

Luteinizing hormone (LH) is a glycoprotein hormone consisting of 2 noncovalently bound subunits (alpha and beta). LH is produced by the anterior pituitary gland under regulation of the hypothalamic gonadotropin releasing hormone (GnRH) and feedback from gonadal steroid hormones. In children, LH, along with follicle-stimulating hormone (FSH), is used to diagnose precocious (early) and delayed puberty.

Specimen and Container Info

Preferred Specimen Type: Serum

Alternate Specimen Type: Plasma 

 

Preferred Collection Container: Gold Top, Serum Separator or Red Top, Plain

Alternate Collection Container: Lavender Top (EDTA)  

 

Desired Specimen Volume: 1 mL

Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.  
Processing and Submission Instructions
  1.  Separate serum from cells within 45 minutes of collection.
  2. Transfer 1 mL of serum to a LabCorp pp transpak frozen purple tube.
  3. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Transport Instructions

Transport to the laboratory frozen. 

Stability Requirements

Room Temperature

1 day

Refrigerated

 2 days

Frozen

6 months

Methodology
Electrochemiluminescence Immunoassay
Reference Intervals

See patient report.

Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday