Specimen Requirements

Title

ESTRIOL, SERUM

Specimen Requirement

0.5 mL serum collected in a red-top tube (no gel)

DO NOT COLLECT SST

Methodology

Stability

Room Temp 24 hours; Refrigerated 7 days

Reference Range

By Report*

Turnaround

2-5 days Setup Sun-Fri pm

Clinical Use

Unconjugated estriol levels are usually lower than normal in pregnancies when the fetus is small or in poor condition. Maternal estriol levels usually fall dramatically immediately before intrauterine fetal death, reaching very low values shortly afterwards.

Test Code

ESTRI