Jump to content

B7. Prenatal diagnostics I. (invasive methods): Difference between revisions

B7. Prenatal diagnostics I. (invasive methods) (view source)

Revision as of 20:05, 21 March 2024

18 bytes added ,  21 March
no edit summary
VisualWikitext
(Created page with "Prenatal diagnostics are techniques which can be used to detect genetic disorders or birth defects in the foetus. There are three purposes of these: * To prepare necessary medical or surgical treatments soon after birth, or even intrapartum * To give the parents the chance to abort a foetus with the diagnosed condition * To give the parents the chance to prepare for a baby with a certain condition We distinguish invasive and non-invasive methods. The invasive methods a...")
 
No edit summary
 
Line 20: Line 20:
Amniocentesis (AC) involves ultrasound-guided transabdominal acquisition of amniotic fluid. Ultrasound is performed to locate the placenta and a pocket of amniotic fluid away from the foetus. A needle is then inserted through the abdominal wall and uterine wall. AC is performed after week 15.
Amniocentesis (AC) involves ultrasound-guided transabdominal acquisition of amniotic fluid. Ultrasound is performed to locate the placenta and a pocket of amniotic fluid away from the foetus. A needle is then inserted through the abdominal wall and uterine wall. AC is performed after week 15.


It may also be used for amnioinfusion, the infusion of amniotic fluid into the amniotic cavity, in case of oligohydramnios. In case of polyhydramnios, it may be used to drain excess fluid.
It may also be used for amnioinfusion, the infusion of lactated Ringer or normal saline into the amniotic cavity, in case of oligohydramnios. In case of polyhydramnios, it may be used to drain excess fluid.


The amniotic fluid can be tested for multiple different compounds:
The amniotic fluid can be tested for multiple different compounds: