Luteinizing Hormone


Abbrev Code:LH   
Order Code:LAB87Order Name:Luteinizing Hormone
Synonyms:Interstitial Cell Stimulating Hormone; Lutropin
Methodology:Electrochemiluminescence immunoassay (ECLIA)
CPT Codes: 83002 x1, 83002 x1
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel)
Alternate Containers: Green (lithium heparin, no gel), Red (no gel), Red (gel)
Contraindications:Large doses of biotin (10 mg or more per day) may cause clinically significant interference in luteinizing hormone levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:5 days at room temperature; 14 days refrigerated; 6 months frozen
Test Performed at or Referral Lab Chemistry  (Roche-Grand Itasca, Roche-UMMC East)


Interpretive

Reference Range:
Age Female
mIU/mL
Male
mIU/mL
0-5 mo 0-8.2 0-6.2
6 mo-10 y 0-1.3 0-1.3
11-13 y 0-10 0-2
14-18 y 0.4-25 1.3-8.4
19 y & older see below 1.7-8.6
Follicular phase 2.4-12.6  
Ovulation phase 14.0-95.6  
Luteal phase 1.0-11.4  
Post-menopausal 7.7-58.5  
Use:Evaluation of ovarian function and evaluation of infertility in a male partner.
   


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