During a Non-Stress Test (NST), the client needs to press a button whenever they feel the fetus move.
What is the purpose of this action?
To measure the fetal heart rate (FHR) in response to fetal movements.
To monitor the uterine contractions.
To indicate adequate fetal oxygenation and normal fetal neurological function.
To assess fetal well-being and identify fetal hypoxia or distress.
The Correct Answer is A
To measure the fetal heart rate (FHR) in response to fetal movements.
This is because the FHR should increase by at least 15 beats per minute for at least 15 seconds when the fetus moves, which indicates a healthy and reactive fetus.
This is called an acceleration.
Choice B is wrong because the uterine contractions are not related to the fetal movements or the button pressing.
The uterine contractions are measured by a tocodynamometer or an intrauterine pressure catheter.
Choice C is wrong because the fetal oxygenation and neurological function are not directly measured by the button pressing.
The fetal oxygenation can be assessed by the FHR variability and decelerations, while the neurological function can be evaluated by other tests such as biophysical profile or fetal acoustic stimulation.
Choice D is wrong because the fetal well-being and hypoxia or distress are not indicated by the button pressing alone.
The fetal well-being and hypoxia or distress are determined by the FHR patterns, such as baseline, variability, accelerations and decelerations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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 C
Explanation
The patient should wear loose-fitting clothing and lie supine on an examination table.
This is because loose-fitting clothing allows easy access to the abdomen and lying supine helps relax the abdominal muscles.
The patient should also avoid food and drinks for 8 to 12 hours before the test, as undigested food can interfere with the sound waves and affect the image quality.
Choice A is wrong because a full bladder is not necessary for an abdominal ultrasound, unless the patient is pregnant or has a pelvic condition.
A transvaginal ultrasound is a different type of ultrasound that uses a probe inserted into the vagina to examine the reproductive organs.
Choice B is wrong because tight-fitting clothing can restrict the movement of the ultrasound probe and make it harder to get a clear image.
Lying prone (on the stomach) can also tense up the abdominal muscles and obscure the organs.
Choice D is wrong because lying prone can have the same disadvantages as choice B. Additionally, wearing loose-fitting clothing does not mean that the patient can eat or drink anything before the test, as this can affect the results.
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