Blood test for free estriol during pregnancy - value and decoding results.
Content
Analysis on estriol during pregnancy — Decoding results
Estivity — Female sex hormone steroid nature, synthesized by the placenta. Its blood content outside pregnancy is minimal. But after the end of the formation of the placenta, its level increases sharply.
Estriol during pregnancy performs a number of important functions:
- Regulation of blood flow in the uterus;
- stimulation of ferrous and epithelial cells of the mammary glands;
- maintaining pregnancy;
- The initiation of the beginning of the birth.
Levels of free estriol during pregnancy serve as diagnostic signs of a number of pathologies and states.
Units of measure in analyzes — NMOL / L or NG / ml.
The norm of free estriol during pregnancy:
- 14-15th week — 0.45-3.5 nmol / l;
- 22nd week — 4.5-13 nmol / l;
- 30th week — 8-30 nmol / l;
- 40th week — 25-42 nmol / l.
The sharp drop in the level of estriol after the 40th week initiates the beginning of the generic activity.
Level up — Sign of a number of pathologies and states:
- multiple pregnancy;
- fetal liver damage;
- Large fruit size.
Reduced estriol levels below reference values — Probable sign of the following pathologies:
- threatening spontaneous abortion;
- risk of premature births;
- Fetoplacentar insufficiency;
- anencephalia fetal;
- Chromosomal diseases — Down syndrome, Edwards;
- fetal development anomalies;
- intrauterine infection;
- hypoplasia of adrenal fruits.
The results of the analyzes are not a diagnosis and require verification by other methods and under the control of the doctor.
