Test Details

• Discipline:

  Biochemistry

  Biochemistry

• Specimen Container Adult:

  Serum (SST or plain tube)

  Serum (SST or plain tube)

• Specimen Container Paediatric:

  serum (SST or plain tube)

  serum (SST or plain tube)

• Minimum Volume Adult:

  1 mL blood

  1 mL blood

• Minimum Volume Paediatric:

  0.5 mL

  0.5 mL

• Sample Stability:

  Unseparated sample: 7 days
  Separated sample: 3 days at 15-25°C, 14 days at 2-8°C, 6 months at -20°C

   

  Unseparated sample: 7 days
  Separated sample: 3 days at 15-25°C, 14 days at 2-8°C, 6 months at -20°C

   

• Transport Requirements:

  Ambient

  Ambient

• Interpretation:

  Elevated LH concentrations are associated with primary gonadal failure. Low LH concentrations may be associated with hypogonadotrophic hypogonadism (i.e. GnRH deficiency) or due to suppression of G...

  Elevated LH concentrations are associated with primary gonadal failure. Low LH concentrations may be associated with hypogonadotrophic hypogonadism (i.e. GnRH deficiency) or due to suppression of GnRH secretion due to high concentrations of testosterone in men (e.g. in testosterone replacement therapy) or oestrogens in women (e.g. due to exogenous oestrogens or pregnancy).

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• Reference Ranges:

  Male: 1.7 – 8.6 IU/L

   

  Female:

  Follicular: 2.4 – 12.6 IU/L

  Luteal: 1.0 – 11.4 IU/L

  Ovulation: 14.0 – 95.6 IU/L

  Postmenopausal: 7.7 – 58.5 IU/L

  Male: 1.7 – 8.6 IU/L

   

  Female:

  Follicular: 2.4 – 12.6 IU/L

  Luteal: 1.0 – 11.4 IU/L

  Ovulation: 14.0 – 95.6 IU/L

  Postmenopausal: 7.7 – 58.5 IU/L

• Routine Contact Name:

  Duty Biochemist

• Routine Telephone:

  Freeman: 0191 244 8889

  RVI: 0191 282 9719

  Freeman: 0191 244 8889

  RVI: 0191 282 9719

• Routine Email:

  nuth.dutybiochemist@nhs.net