Childbirth is a complex series of mechanism by which a foetus is brought
to the outside world. During gestation mother goes by a number of
physiological changes that aids in maintaining her pregnant status. The
journey that starts from developing embryo leads to delivery of the
foetus. The whole pregnancy period is of 37 weeks. During this
gestational period a mother has to go through regular visits to her
gynaecologist, in those visits the mother undergoes a series of blood
test and ultrasound screening to detect the foetal status. There are
certain invasive tests performed to detect foetal abnormality.
Preserving foetus and maintaining a non hostile environment inside a
mother’s womb is necessary to maintain an effective foetus status.
There are foetal monitors developed to keep a check system on foetus
development. There are two types of monitoring systems, external
monitoring devices and invasive monitory devices.
External monitors include DOPTONE. Doptone is a Doppler foetal heart
rate monitor .It detects the heart rate of a foetus growing inside of a
pregnant woman. A foetal stethoscope can also be used for similar
purpose but by stethoscope only the examiner can hear the heart beat. In
early stages the foetus heart beat corresponds with the mother heart
beat however by the end of ninth month the foetal heart beats 155 beats
per minute.
The Doppler has a transducer that converts the heart beat of foetus into
electric signals that can be heard by examiner and even the mother.
Another external monitor used in obstetrics is cardiotocography. It
records the mothers’ uterine contractions with the foetal heart beat.
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