A laboring client is inhaling gas through a mouthpiece just before the onset of her regular contractions.
As they inhale, a valve opens and gas is released.
They continue to inhale the gas slowly and deeply until the contraction starts to subside.
When the inhalation stops, the valve closes.
What is this procedure?
“Likely to be used in the second stage of labor but not in the first stage.”
“A prelude to cesarean birth.”
“Not used much anymore.”
“An application of nitrous Oxide.”
The Correct Answer is D
A rationale:
Incorrect. Nitrous oxide can be used during any stage of labor, not just the second stage. It is often used during the first stage to help manage early labor pain.
Evidence: Studies have shown that nitrous oxide is effective for pain relief during both the first and second stages of labor.
Additional information: The timing of nitrous oxide administration is typically based on the individual's preferences and needs. Some people prefer to use it as soon as labor begins, while others wait until contractions become more intense.
Choice B rationale:
Incorrect. Nitrous oxide is not a prelude to cesarean birth. It is a method of pain relief that can be used during vaginal or cesarean birth.
Evidence: Cesarean birth is a major surgical procedure that is typically performed under regional or general anesthesia. Nitrous oxide is not a type of anesthesia that would be used for this purpose.
Additional information: Cesarean birth is usually only performed when there is a medical reason why a vaginal birth is not possible or safe.
Choice C rationale:
Incorrect. Nitrous oxide is still a commonly used method of pain relief during labor. It is safe and effective, and it has a good safety profile.
Evidence: Nitrous oxide is one of the most widely used methods of pain relief during labor in many countries around the world.
Additional information: The use of nitrous oxide during labor has been increasing in recent years, as more people have become aware of its benefits.
Choice D rationale:
Correct. The procedure described in the question is an application of nitrous oxide. Nitrous oxide is a colorless, odorless gas that has analgesic and anxiolytic properties. It is often used during labor to help manage pain and anxiety.
Evidence: Nitrous oxide is a well-established method of pain relief during labor. It has been used for this purpose for over a century.
Additional information: Nitrous oxide is a safe and effective option for pain relief during labor. It is easy to administer and has few side effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Answer and explanation
The correct answer is B. Aspiration of stomach contents.
Choice A rationale:
Respiratory depression is a potential risk of general anesthesia, but it is not the greatest risk in this scenario.
It is usually well-managed by the anesthesiologist during surgery.
They will closely monitor the patient's respiratory status and adjust the level of anesthesia as needed to maintain adequate breathing.
If respiratory depression does occur, it can be quickly reversed with medications.
Choice B rationale:
Aspiration of stomach contents is the most serious risk of general anesthesia in pregnant women.
This is because pregnancy causes a number of changes in the gastrointestinal system that increase the risk of aspiration:
The growing uterus puts pressure on the stomach, which can cause stomach contents to reflux into the esophagus.
Pregnancy hormones can relax the esophageal sphincter, which is the muscle that normally prevents food and stomach acid from coming back up the esophagus.
Labor can further delay gastric emptying, leading to a higher volume of stomach contents.
If stomach contents are aspirated into the lungs, it can cause a serious and potentially fatal condition called aspiration pneumonia.
It is important to note that aspiration can occur even if a woman has been fasting before surgery.
This is because the stomach never completely empties, and there is always some risk of reflux.
Choice C rationale:
Uterine relaxation is a potential side effect of some general anesthetic agents, but it is not a major risk in this scenario.
The anesthesiologist will choose an anesthetic agent that is less likely to cause uterine relaxation.
Additionally, they will closely monitor the patient's uterine tone and can administer medications to stimulate the uterus if necessary.
Choice D rationale:
Inadequate muscle relaxation is not a major risk of general anesthesia in this scenario.
The anesthesiologist will ensure that the patient's muscles are adequately relaxed to facilitate surgery.
Correct Answer is D
Explanation
Choice A rationale:
Fetal lung maturity is not assessed through chorionic villus sampling (CVS). It's primarily evaluated through amniocentesis, a different prenatal diagnostic procedure that involves sampling amniotic fluid.
CVS focuses on placental tissue, not lung development.
It's essential for clients to understand the specific purposes of each prenatal test to make informed decisions and have accurate expectations.
Choice B rationale:
While a non-stress test (NST) might be recommended after CVS in some cases, it's not a routine part of the procedure.
The decision to conduct an NST is based on individual risk factors and assessment by healthcare providers.
It's essential for clients to understand the potential need for additional testing but not assume it's always required.
Choice C rationale:
CVS is considered an invasive procedure, as it involves entering the uterus to collect placental tissue.
Non-invasive prenatal testing (NIPT) methods, which analyze fetal DNA in maternal blood, are available for screening purposes.
It's crucial for clients to differentiate between invasive and non-invasive prenatal testing options to make informed choices based on their preferences and risk factors.
Choice D rationale:
This statement accurately reflects the primary purpose of CVS.
It's a diagnostic procedure that can detect various genetic abnormalities, such as Down syndrome, cystic fibrosis, and TaySachs disease, during the first trimester of pregnancy.
Understanding the ability to detect genetic abnormalities early in pregnancy allows clients to make informed decisions about their pregnancy management and prepare for potential outcomes.
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