NST (NONSTRES TEST)

It is a test that allows us to observe the course of the baby's heartbeat and the relationship of the heartbeat with the baby's movements and contractions, if any. The most widely used of these tests is NST.
According to this observation, it is tried to understand whether the fetus is in normal or distress state. NST is one of the tests to determine the well-being of the fetus. Other tests to determine the well-being of the fetus are ultrasound, measurement of amniotic fluid, doppler measurements, biophysical profile, OCT.
There are two ends called probes and fixed on the belly of the pregnant woman. One of the probes perceives the contractions of the uterus and the other perceives the baby's heart sounds. Perceived contractions and heart sounds are transferred by the device onto a graph paper. It is necessary that the mother is lying on the left side during the test as it will increase blood flow to the uterus.
During this process, which takes about 20 minutes, pregnant women are asked to press a small button given to their hands whenever they feel their movements. Thus, an indirect information about the health of the baby is obtained by evaluating the baby's heart rate and reactivity (variations in the beat rate), contractions in the uterus and the responses of the baby's heart to these contractions.
It is recommended that NST application should be repeated once a week after 36th gestational week and 2-3 days after 40th gestational week. Before the NST procedure, it is recommended that the mother be satiated by eating a carbohydrate-rich diet. NST is not performed in fetuses younger than 28 weeks because the fetus has not developed enough to give such responses yet. Sleeping fetus may also make the test false negative.


- CONTRACTION STRESS TEST (CST)
- BIOPHYSIC PROFILE (BPP)
- INTELLIGENCE TEST IN PREGNANCY
- BIG BABY
- CELL FREE FETAL DNA ANALYSIS (cffDNA)

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