Estriol, Serum


Sunquest Code:ESTRI  
Epic Code:LAB3454Epic Name:ESTRIOL
Synonyms:E3, Serum; Estriol, Unconjugated
Methodology:Chemiluminescent immunoassay
CPT Code:82677
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-2 days.
Special Instructions:Patient gestational age required.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:1.4 mL
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Plasma


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.6 mL minimum. Samples are stable refrigerated for 7 days.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:70051 (EST)


Interpretive

Reference Range:

Gestation

ng/mL

25 w

1.9-6.7

26 w

2.0-7.3

27 - 29 w

2.1-9.1

30 – 31w

2.4-10.6

32 - 37 w

2.6-16.7

Non-pregnant Female

Less than 0.08

Male

Less than 0.16

 

 

Use:Evaluate fetal well-being and placental function, especially in high risk pregnancies.


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