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Dec 21, 2015

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LH

LH (LH) Chemistry Lab Test

Name: LH

Test Name: LH

Health Link Test Code: LH

LIS Test Code: LH

CPT Code(s): 83002

Methodology: Chemiluminescent Immunoassay

Days Performed: Daily, dayshift.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: Not available stat.

Specimen: Blood

Collection Container: Red cap with yellow ring (SST)

Also Acceptable: Red top

Collection Volume: 1 mL

Pediatric Collection Volume: 0.5 mL

Stability Ambient:

24 hours

Stability Refridgerated:

7 days removed from cells, clot, or gel

24 hours on gel

Stability Frozen:

>7 days

Sample Analyzed: Serum

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.15 mL

Specimen Processing:

Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to UWHC Hospital Laboratory. Transport with coolant pack if coming from clinic location.

Interpretation:

 Male:  mIU/mL
4 days-2 months 0.2-3.8
3-11 months 0.0-2.9
1-9 years 0.0-0.3
10-12 years 0.0-4.3
13-14 years 0.0-4.1
15-16 years 0.8-4.8
17 years 0.9-7.1
18 years and up 0.6-12.1
   
 Female:  
4 days-2 months 0.0-2.4
3-11 months 0.0-1.2
1-9 years 0.0-0.3
10-12 years 0.0-4.3
13-14 years 0.4-6.5
15-16 years 0.0-13.1
17-18 years 0.0-8.4
Normal menstruating females (18 years and up)  
Follicular phase

1.8-11.8

Mid-cycle 7.6-89.1
Luteal phase 0.6-14.0
Post menopausal without HRT 5.2-62.0

 

Pediatric reference intervals from Reference Ranges for Serum Concentrations of Lutropin (LH), Follitropin (FSH), Estradial (E2), Prolactin, Progesterone, Sex Hormone-Binding Globulin (SHBG), Dehydroepiandrosterone Sulfate (DHEAS), Cortisol and Ferritin in Neonates, Children and Young Adults, Clin Chem Lab Med 2002; 40(11):1151-1160. 

Interpretation Type: Reference Interval

Test Limitations:

Results may be affected if patient has developed heterophilic antibodies due to exposure to animal based protein products.