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LUTEINIZING HORMONE

Mnemonic

LH

Synonym

LH

Specimen Collection Requirements

Collect

Serum, one 5.0 mL gold (SST) or 7.0 mL red top tube

View image for Supply Item Number - 101235 or 101192

Handling

Allow serum to clot completely at room temperature (minimum: 30 minutes). Centrifuge and separate serum from cells within 2 hours of collection.

Preferred Volume

1.0 mL

Minimum Volume

0.3 mL Serum, (Whole Blood 0.8 mL minimum draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens, plasma

Stability

AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 8 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 2 months

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Chemiluminescence

Reference Values

Reference Values

ADULT:
MALE:
20 - 60 years:    1.5-9.3 IU/L
70 and above:    3.1-34.6 IU/L

Age adjusted ranges.
FEMALE:
Follicular:    1.9-12.5 IU/L
Midcycle:    8.7-76.3 IU/L
Luteal:         0.5-16.9 IU/L
Postmenopausal:    15.9-54.0 IU/L
Pregnancy:            <0.1-1.5 IU/L
Pre-menses:          <0.5 IU/L
Contraceptives (estrogen):    0.7-5.6 IU/L

CPT Codes

83002

Last Updated: Thursday, January 5, 2017 03:41:22 AM


Client Services: 503-413-1234