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

                                                                                                              *Diabetic mother 

                                                                                                               *Multiple gestations with twin 

                                                                                                                 transfusion syndrome.

                                                                                                               *Non-immune hydrops fetals.

                                                                                                                *Some fetal anomalies as 

                                                                                                                  diaphragmatic hernia

                                                                                                                  oesophageal atresia.

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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