A nurse is preparing a client for a Contraction Stress Test (CST).
Which method can be used to induce uterine contractions during the test?
Nipple stimulation.
Intravenous oxytocin infusion.
Administering oral medications.
Applying warm compresses to the abdomen.
The Correct Answer is B
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.
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Related Questions
Correct Answer is B
Explanation
This is because cramping and vaginal bleeding after an amniocentesis may indicate a possible miscarriage or placental abruption, which can compromise fetal oxygenation and perfusion.
Monitoring fetal heart rate can help detect signs of fetal distress and guide further interventions.
Choice A is wrong because administering Rho(D) immune globulin is indicated for Rh-negative mothers who undergo amniocentesis to prevent isoimmunization, but it is not a priority action in this scenario.
Choice C is wrong because assessing maternal vital signs is important to monitor for signs of infection, hemorrhage, or shock, but it is not as urgent as monitoring fetal well-being.
Choice D is wrong because obtaining an order for an ultrasound exam can help confirm the diagnosis and evaluate the placenta and amniotic fluid, but it is not the first action to take in this situation.
Correct Answer is A
Explanation
“I will have sensors placed on my abdomen to monitor the FHR and uterine contractions.” This statement indicates the client understands the test procedure of a CST, which is a test that triggers contractions and registers how the baby’s heart reacts.
The test is done by placing two sensor belts around the abdomen, one to measure the baby’s heartbeat and the other to measure contractions.
The client may receive oxytocin through an IV to induce contractions.
Choice B is wrong because the client does not need to fast for 24 hours before the test.
There is no evidence that fasting is required for a CST.
Choice C is wrong because the client will not be sedated during the test.
Sedation is not necessary for a CST and may interfere with the results.
Choice D is wrong because the client does not need to drink plenty of fluids before the test.
There is no evidence that drinking fluids is required for a CST.
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