Luteinizing Hormone

General

Synonym/Acronym:
LH, luteotropin, interstitial cell–stimulating hormone (ICSH).

Rationale
To assess gonadal function related to fertility issues and response to therapy.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.

Normal Findings
Method: Electrochemiluminescent Immunoassay.

Concentration by Gender and by Phase (in Females)Conventional and SI Units
Male
  1 mo–1 yrLess than 0.5 international units/mL
  2–10 yrLess than 0.7 international units/mL
  11 yr–AdultLess than 9 international units/mL
  Adult1.2–9.6 international units/mL
Female
  1 mo–6 yrLess than 0.5 international units/mL
  2–10 yrLess than 0.7 international units/mL
  11 yr–AdultLess than 26 international units/mL
Phase in Females
  Follicular1.7–15 international units/mL
  Ovulatory14–96 international units/mL
  Luteal1–11 international units/mL
  Postmenopausal8–58 international units/mL

Critical Findings and Potential Interventions
N/A

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