Neonate
Neonate:
Is the period of life from the 28th week of gestational age to the 28th day after birth.
Fetal assessment:
This means a determination of well well-being of the fetus.
The fetus:
The end of the eighth week of conception is when the major structures have formed until birth.
this assessment needs some common procedures:
* Medical history and examination of the mother.
* Chemical assessment of placental function.
*Amniocentesis for assay of amniotic fluid assay of bilirubin in Rh incompatibility &assay of respiratory distress syndrome by lecithin and sphingomyelin ratio and assay of surfactant production.
*Chorionic villus sampling for genetic abnormalities.
* Electronic and ultrasonic fetal H.R.monitoring,
* Precautions umbilical blood sampling (cordocentesis).
* Ultrasonography: a non-invasive technique used for :
1- Determination of pregnancy viability, Fetal heart motion can be detected at 6 weeks gestation.
2- Calculation of gestational age by measuring CRL (crown-rump length) between 6 weeks and 14 weeks gestation.
3-Diagnosis of multiple pregnancies and determination of chorionic.
4- Anatomic survey to detect congenital anomalies for example e.g. hydrocephalus & congenital heart diseases & diaphragmatic hernia and fetal gender.
5- Assessment of growth and fetal weight ( IUGR & macrosomia ).
6- Assessment of amniotic fluid volume:
# Oligohydrominos which are associated with increased fetal morbidity and
mortality with spontaneous rupture of membranes.
most common causes:(placental insufficiency &chronic
hypertension & post dates gestation & some fetal
anomalies as karyotypic abnormalities).
# Polyhydrominos which caused by *Idiopathic
*Multiple gestations with twin
transfusion syndrome.
*Non-immune hydrops fetals.
*Some fetal anomalies as
7- Assessment of placental location and presence of retroplacental hemorrhage.
References:
Macones GA, Hankins GD, Spong CY, Hauth J, Moore T. The 2008 National Institute of Child Health and Human Development Workshop report on electronic fetal monitoring: update on definitions, interpretation, and research guidelines. Obstet Gynecol.2008;112:661-666.
Malone FD, CanickJA, Ball RH, et al.First-trimester or second-trimester screening, or both. N Engl J Med.2005;353:2001-2011.
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