A nurse is performing an abdominal ultrasound for a client who is at 28 weeks of gestation.
The nurse should instruct the client to do which of the following before the procedure?
Drink several glasses of water.
Empty her bladder completely.
Lie on her right side
Fast for at least 4 hours.
The Correct Answer is A
The woman should drink several glasses of water before the abdominal ultrasound procedure.
This is because a full bladder helps to push the intestines away and improve the visibility of the uterus and the fetus.
Drinking water also helps to avoid gas buildup in the abdomen, which could interfere with the sound waves.
Choice B is wrong because emptying the bladder would make it harder to see the uterus and the fetus.
Choice C is wrong because lying on the right side would not affect the quality of the ultrasound image.
Choice D is wrong because fasting is not necessary for an abdominal ultrasound, unless instructed by the doctor for a specific reason.
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Related Questions
Correct Answer is B
Explanation
This method can be used to induce uterine contractions during the test by stimulating the uterus with a hormone that causes contractions.
Oxytocin is also the hormone that naturally triggers labor contractions.
Choice A is wrong because nipple stimulation can also induce contractions, but it is not as reliable or controllable as oxytocin infusion.
Choice C is wrong because oral medications are not used to induce contractions during a CST.
Some medications may interfere with the test results or cause side effects.
Choice D is wrong because applying warm compresses to the abdomen does not induce contractions.
It may help with pain relief or relaxation, but it does not affect the uterus.
Normal ranges for uterine contractions during a CST are three contractions in 10 minutes, each lasting 40 to 60 seconds.
Normal ranges for fetal heart rate during a CST are 110 to 160 beats per minute, with no decelerations after contractions.
Correct Answer is C
Explanation
This is because a nuchal translucency ultrasound measures the amount of fluid behind the baby’s neck in the first trimester of pregnancy, which can indicate the risk of having a chromosomal condition like Down syndrome.
Some possible explanations for the other choices are:
Choice A is wrong because fetal growth and development are not directly related to the nuchal translucency measurement.
Fetal growth and development are assessed by other parameters such as crown-rump length, biparietal diameter, abdominal circumference, etc.
Choice B is wrong because blood flow in the umbilical cord is not measured by the nuchal translucency ultrasound.
Blood flow in the umbilical cord is assessed by Doppler ultrasound, which evaluates the resistance and velocity of blood flow in the umbilical artery and vein.
Choice D is wrong because structural abnormalities in the baby’s organs are not detected by the nuchal translucency ultrasound.
Structural abnormalities in the baby’s organs are diagnosed by a detailed anatomy scan, which is usually performed in the second trimester of pregnancy.
The normal range for nuchal translucency is between 1 mm and 3 mm.
A measurement above 3 mm is considered increased and may indicate a higher risk of chromosomal or genetic conditions.
However, a nuchal translucency ultrasound is a screening test and not a diagnostic test, so it does not confirm or rule out any condition.
It only provides a probability based on statistical calculations.
Therefore, further testing may be recommended if the nuchal translucency measurement is increased or if other risk factors are present.
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