Luteinizing Hormone (LH)

Tube Type

Test ID

LAB87

EPIC Order

LUTEINIZING HORMONE

CPT Code(s)

83002

Group/Individual Test

Individual

Laboratory

Core Laboratory

Tube Station

30

Specimen

Routine:

4 mL blood/green lithium heparin-gel tube. Also acceptable gold SST or red plain tube

Micro:

2 blood/mint green top bullet/gold top/red top

Stability

Unspun:

8 hours

Spun/Separated:

Room Temperature: 8 hours
Refrigerated: 48 hours
Frozen: 30 days

Availability

24 hours/day

Turnaround Time

Routine:

2 hours

Stat:

90 mins

Reference Range

Normal:

See Table below

Comments

Reference Ranges: Luteinizing Hormone(LH)

LH, Female	mIU/mL
(Menstruating) Follicular Phase	1.9-12.5
Mid-Cycle Peak	8.7-76.3
Luteal Phase	0.5-16.9
Pregnant	<1.5
Post Menopausal	5.0-55.2

LH, Male
20-70 yrs	1.5-9.3
>70 yrs	3.1-34.6

Testing is performed using Siemens Atellica LH Assay. Different test methods should not be used interchangeably. Heterophilic antibodies may cause interference.

Administration of gonadotropin-releasing hormone (GnRH), clomiphene citrate, and human menopausal gonadotropin (hMG) to females can result in elevated endogenous LH values, while administration of estrogens or testosterone can result in decreased endogenous LH values.

Administration of hMG to males can result in elevated endogenous LH values, while administration of testosterone decreases endogenous LH values.

Reviewed by J. Carr on December 31, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514