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Nifedipine
Nifedipine is a
tocolytic drug used
to control
preterm labor contractions
by relaxing the uterine muscle. The smooth
muscle of the uterus needs calcium to contract and nifedipine blocks that calcium, relaxing
the uterus. It is usually taken as a pill. Nifedipine pills are taken every 4 to 6 hours to control
contractions.
Some of the side effects of nifedipine include dizziness and headache. Other side effects include:
- Skin flushing
- Muscle cramps or shakes
- Nausea
[Source:
MedLine Plus.]
Nuchal translucency
The nuchal translucency test is a genetic test that is performed in the first trimester between
11-14 weeks of pregnancy. This test is used primarily to determine the risk of
Down syndrome. The test does not
definitely confirm whether a baby has
Down syndrome because it does not test the actual chromosomes.
Nuchal translucency only determines the risk of having a baby with Down syndrome based on the
mother's age and a measurement of the baby's neck.
The nuchal translucency test uses
ultrasound to measure
the translucent area at the back of a baby's neck. This area is called the nuchal fold area. The
measurement is then combined with the mother's age and a percentage of risk is determined. This risk
number is shown as a ratio, for instance 1:270. Meaning that out of 270 babies, one will statistically have
Down syndrome.
The nuchal translucency test can now be combined with a
Free beta hCG and PAPP-A blood test to
give more definite results.
[Source:
Genetics & Public Policy Center.]
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