Pathology tests database

Sample and container requirements

Serum EDTA Plasma Lithium Heparin Plasma (paediatrics only)

Minimum volume required

Special requirements

None

Patient preparation

None

Sample viability

Turnaround time

This assay is run throughout the day and night. The in-lab turnaround time is normally less than 24 hours.

Reference range

Females: Follicular phase: 1.8 – 11.8 IU/L Luteal phase: 0.6 – 14.0 IU/L Mid Cycle: 7.6 – 89.1 IU/L Post menopausal: 5.2 – 62.0 IU/L Males: 0.6 – 12.1 IU/L (Source: Abbott Diagnostics)

Clinical guidance

LH is often used in conjunction with other tests (FSH, testosterone, oestradiol and progesterone) in the investigation of infertility in both men and women. LH levels are also useful in the investigation of menstrual irregularities (irregular periods) and to aid in the diagnosis of pituitary gland disorders. In children, FSH and LH are used to diagnose delayed and precocious (early) puberty. Please refer to LabTestsOnlineUK to learn more about LH. https://labtestsonline.org.uk/tests/lh-test

Notes