A nurse is caring for a client who is scheduled for an amniocentesis at 16 weeks gestation.
Which of the following should the nurse report to the provider?
The client’s bladder is full.
The client’s uterus is above the symphysis pubis
The client’s cervix is dilated
The client’s fundal height measures 20 cm
The Correct Answer is C
. The client’s cervix is dilated.
This indicates that the client may be in preterm labor, which is a contraindication for amniocentesis.
Amniocentesis is a procedure that involves inserting a needle into the amniotic sac to obtain a sample of amniotic fluid for genetic testing or other purposes.
It is usually performed between 15 and 20 weeks of gestation.
Choice A is wrong because the client’s bladder should be full for amniocentesis.
This helps to push the uterus upward and away from the bladder, reducing the risk of injury and making it easier to visualize the fetus and the needle.
Choice B is wrong because the client’s uterus should be above the symphysis pubis at 16 weeks of gestation.
This is a normal finding and does not affect the procedure.
Choice D is wrong because the client’s fundal height should measure around 16 cm at 16 weeks of gestation.
A fundal height of 20 cm may indicate a large for gestational age fetus, multiple gestation, or polyhydramnios (excess amniotic fluid), but these are not absolute contraindications for amniocentesis.
However, they may require further evaluation and adjustment of the technique.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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 A
Explanation
The baby’s heart beat is audible by a Doppler stethoscope at 12 weeks of pregnancy.
This is a device that uses sound waves to create an image of the baby’s heart and measure its rate and rhythm.
Some possible explanations for the other choices are:
Choice B is wrong because the baby’s sex can not be determined by ultrasound at 8 weeks of pregnancy.
The external genitalia are not fully developed until around 14 to 16 weeks of pregnancy.
Even then, the accuracy of ultrasound depends on factors such as the position of the baby, the quality of the equipment, and the skill of the sonographer.
Choice C is wrong because the baby’s lungs are not fully mature by 24 weeks of pregnancy.
The lungs are one of the last organs to develop in the fetus and they continue to grow and mature until near term.
The production of surfactant, a substance that helps the lungs expand and prevent collapse, begins around 24 weeks but is not sufficient until around 34 to 36 weeks.
Choice D is wrong because the baby’s eyes do not open and close by 16 weeks of pregnancy.
The eyelids are fused together until around 26 to 28 weeks of pregnancy, when they start to open and close periodically.
The baby can also respond to light and dark stimuli around this time.
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