Measuring quantitative serum human chorionic gonadotropin

Variations in levels between kits

C. B. Smikle, K. A. Sorem, F. H. Wians, Gary Hankins

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Human chorionic gonadotropin (hCG) may be used in the monitoring of early pregnancy. It may also be used as a tumor marker in the diagnosis and follow- up of gestational trophoblastic disease, choriocarcinoma and testicular carcinoma. The combination of maternal serum unconjugated estriol, α- fetoprotein and quantitative hCG has shown promise as an antepartum screen for Down syndrome. In the quantitative assessment of hCG, the calibrators used by various kits are standardized to one of two different standards, either the Second International Standard or the First International Reference Preparation (IRP), established by the World Health Organization in 1968 and 1975, respectively. The IRP is now considered the Third International Standard, and both terms may be used interchangeably. Cohesion may exist in clinical situations if quantitative hCG levels determined by assays in different laboratories using different standards are compared or used simultaneously. Practitioners are advised to be aware of which calibration standard is utilized in their laboratory and to interpret the results accordingly.

Original languageEnglish (US)
Pages (from-to)439-442
Number of pages4
JournalJournal of Reproductive Medicine for the Obstetrician and Gynecologist
Volume40
Issue number6
StatePublished - 1995
Externally publishedYes

Fingerprint

Chorionic Gonadotropin
Serum
Fetal Proteins
Gestational Trophoblastic Disease
Estriol
Choriocarcinoma
Tumor Biomarkers
Down Syndrome
Calibration
Mothers
Carcinoma
Pregnancy

Keywords

  • chorionic
  • gonadotropins

ASJC Scopus subject areas

  • Obstetrics and Gynecology
  • Reproductive Medicine

Cite this

Measuring quantitative serum human chorionic gonadotropin : Variations in levels between kits. / Smikle, C. B.; Sorem, K. A.; Wians, F. H.; Hankins, Gary.

In: Journal of Reproductive Medicine for the Obstetrician and Gynecologist, Vol. 40, No. 6, 1995, p. 439-442.

Research output: Contribution to journalArticle

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