PREGNANCY SERUM QUALITATIVE

Code
800.0890
Name
PREGNANCY SERUM QUALITATIVE
Category
None
Department
Serology
Start Date
Expiration Date
Synonyms
Human Chorionic Gonadotropin; Pregnancy Test (Qualitative)
CPT Codes
84703
Site
Main Lab
Reference Test
ATLAS Test Code

Specimen Information

Type

Gold, SST

Volume

1.0 ml

Transport Info

Refrigerated
48 Hour stability

Fasting Required?
False
Patient Instructions

Reference Range

Negative

Methodology

Chromatographic Immunoassay

Clinical Significance

Confirm pregnancy.

Human chorionic gonadotropin (hCG) is a two-chain glycoprotein hormone (MW approx. 37,000) normally found in blood and urine only during pregnancy. It is secreted by placental tissue, beginning with the primitive trophoblast, almost from the time of implantation, and serves to support the corpus luteum during the early weeks of pregnancy. According to literature, circulating hCG typically reaches levels of approximately 2,000 mIU/mL one month after conception. A peak level on the order of 100,000 mIU/mL is attained in the third month, after which a gradual decline sets in. following delivery, the hCG level normally undergoes rapid descent, reaching non-pregnant concentrations some two weeks later.Ectopic pregnancies and pregnancies terminating in spontaneous abortion tend to have lower than normal circulation hCG levels, while somewhat higher levels are often seen in multiple pregnancies.

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