Lutropin, Serum


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

Roche Go Live Schedule



Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Collection Instructions:Chemistry Tests Containers Chart
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  (Grand Itasca, Roche-UMMC East)


Interpretive

Reference Range:Grand Itasca (all ages): 10.87-58.64 IU/L
Roche:
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  

Vista:
Age Female(IU/L) Male (IU/L)
1-15 d Not established Not established
16 d-6y 0.3-1.9 0.3-2.8
7-8y 3.0 or less 0.3-2.8
9-10 y 4.0 or less 0.3-2.8
11 y 6.5 or less 0.3-1.8
12 y 0.4-9.9 0.3-4.0
13 y 0.3-5.4 0.3-6.0
14 y 0.5-31.2 0.5-7.9
15 y 0.5-20.7 0.5-10.8
16 y 0.4-29.4 0.5-10.8
17 y 1.6-12.4 0.9-5.9
18-70 y See below 1.5-9.3
71 y & older See below 3.1-34.6

Pre-Menopausal, 18 y & older
  All Other Sites Grand Itasca
Follicular phase 1.9-12.5 2.12-10.89
Midcycle peak 8.7-76.3 19.18-103.03
Luteal phase 0.5-16.9 1.20-12.86
Postmenopausl 15.9-54.0 10.87-58.64
  All Other Sites
Tanner Stages* Male
(IU/L)
Female
(IU/L)
Stage I 0.3-2.7 2.0 or less
Stage II 0.3-5.1 6.5 or less
Stage III 0.3-6.9 0.3-17.2
Stage IV 0.5-5.3 0.5-26.3
Stage V 0.8-11.8 0.6-13.7
*Puberty onset occurs for boys at a median age of 11.5 years. For boys there is no proven relationship between puberty onset and body weight or ethnic origin. Progression through Tanner stages is variable. Tanner Stage V (adult) should be reached by age 18.
Puberty onset (transition from Tanner Srage I to Tanner Stage II) occurs for girls at a median age of 10.5 years. There is evidence that it may occur up to 1 year earlier in obese girls and in African American girls. Progression through Tanner stages is variable. Tanner Stage V (adult) should be reached by age 18.
Use:Evaluation of ovarian function and evaluation of infertility in a male partner.
   


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