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Luteinizing hormone, Pediatric

Item Value
Approval req'd? Yes, contact Chemistry/Immunology Resident at x3-1438. for patients > 20 years old.
Available Stat? No
Test code PLH
Test group LH
Performed by Esoterix
Sendout? Yes
Method ICMA
Container type Red top or Gold top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.2 mL serum
Processing notes Freeze at -20°C. Specify age and sex on request form. Order Esoterix #500234
Units mIU/mL
Normal range Results are expressed in terms of W.H.O. 2nd Int'l Standard, Human Pituitary LH 80/552

Infants 2 weeks-11 months: Values increase about two weeks after birth to a range of 0.02-7.0 mIU/mL within the first three months, then decline to prepubertal values by the end of the first year.

Prepubertal children 12 mo-8 years: 0.02-0.3 mIU/mL

Male Normal Range-Puberty
Tanner Stage Age (years) Range
1 < 9.8 0.02-0.3 mIU/mL
2 9.8-14.5 0.2-4.9 mIU/mL
3 10.7-15.4 0.2-5.0 mIU/mL
4 11.8-17.3 0.4-7.0 mIU/mL


Female Normal Ranges-Puberty
Tanner Stage Age (years) Range
1 < 9.2 0.02-0.18 mIU/mL
2 9.2-13.7 0.02-4.7 mIU/mL
3 10.0-14.4 0.10-12.0 mIU/mL
4 10.7-18.6 0.4-11.7 mIU/mL
Synonyms LH; gonadotropin tests; Leuteinizing hormone; LH Ultrasensitive; LH Pediatric
Turn around times Test performed Tuesday and Friday. Turnaround time: 2-6 days.
Additional information This send-out assay is primarily reserved for testing in pediatric patients with suspected or complex endocrine abnormalities. For adult patients see "Luteinizing Hormone" (test code LH). It requires approval if ordered in patients over the age of 20.
LOINC code 10501-5
Last Updated 5/4/2012 2:22:45 PM
Entry Number 619
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