A laboring client received nalbuphine (Nubain) IV 90 minutes before she gave birth.
Which of the following medications should be available to reduce the postnatal effects of nalbuphine (Nubain) on the neonate?
Naloxone (Narcan)
Ephedrine
Promethazine (Phenergan)
Fentanyl (Sublimaze)
Fentanyl (Sublimaze)
The Correct Answer is A
Choice A rationale:
Naloxone is an opioid antagonist. It works by binding to opioid receptors in the brain and body, reversing the effects of opioids. This includes respiratory depression, which is a major concern in neonates exposed to opioids during labor.
Nalbuphine is an opioid agonist-antagonist. This means that it has both agonist and antagonist effects at opioid receptors. At low doses, it acts primarily as an agonist, providing pain relief. However, at higher doses, it can also act as an antagonist, blocking the effects of other opioids.
Naloxone can effectively reverse the respiratory depression caused by nalbuphine in neonates. It is a safe and effective medication that is commonly used for this purpose.
Naloxone should be readily available whenever opioids are administered to a laboring woman. This is to ensure that it can be administered promptly if the neonate experiences respiratory depression.
Choice B rationale:
Ephedrine is a sympathomimetic drug. It works by stimulating the sympathetic nervous system. This can cause a number of effects, including increased heart rate, blood pressure, and respiratory rate.
Ephedrine is not effective in reversing the respiratory depression caused by opioids. It may even worsen the situation by increasing the neonate's oxygen demand.
Ephedrine is not a safe or effective medication for use in neonates. It can cause serious side effects, such as tachycardia, hypertension, and arrhythmias.
Choice C rationale:
Promethazine is a phenothiazine antiemetic. It is commonly used to treat nausea and vomiting.
Promethazine does not have any effects on opioid receptors. It is not effective in reversing the respiratory depression caused by opioids.
Promethazine can cause sedation and respiratory depression in neonates. It should be used with caution in this population.
Choice D rationale:
Fentanyl is a potent opioid analgesic. It is similar to nalbuphine in that it is an opioid agonist.
Fentanyl would not be effective in reversing the respiratory depression caused by nalbuphine. In fact, it would likely worsen the situation by further depressing the neonate's respiratory system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Attaching the IV line to the distal port is not a safe practice for oxytocin administration. This is because oxytocin is a high-alert medication that can have serious adverse effects if administered incorrectly. Attaching the IV line to the distal port increases the risk of the medication being infused too quickly, which can lead to uterine hyperstimulation, fetal distress, or even uterine rupture. The safest practice is to attach the IV line to the proximal port, which is closer to the patient's body and allows for slower infusion rates.
Choice B rationale:
Customizing the concentration of oxytocin is not a recommended practice. Oxytocin is available in a premixed solution of 10 units/mL, and this concentration should not be altered. Altering the concentration can lead to dosing errors and increase the risk of adverse effects.
Choice D rationale:
Titrating oxytocin to gravity is not a safe practice. Oxytocin should be administered using an infusion pump that can accurately control the infusion rate. Infusion pumps are necessary to ensure that the medication is administered at the correct dose and rate. Gravity-based infusions are less accurate and can lead to over- or under-infusion of the medication.
Choice C rationale:
Two RN verification is a safe practice for oxytocin administration. This practice involves having two registered nurses independently verify the medication, dose, and infusion rate before administration. This helps to prevent errors and ensure that the medication is administered safely.
Correct Answer is C
Explanation
Choice A rationale:
Effleurage is a gentle massage technique often used in labor to promote relaxation and reduce discomfort. It involves using light, stroking movements over the abdomen or back. While effleurage can be soothing for some women, it may not be as effective for specifically addressing the intense back pain associated with back labor. It is more focused on general relaxation than on targeted pain relief in the sacral region.
Choice B rationale:
Pant-blow (breaths and puffs) breathing techniques are commonly taught in childbirth classes as a way to manage labor pain. They involve using specific patterns of breathing to help control contractions and minimize discomfort. While these techniques can be helpful for some women, they may not be as effective for back labor pain as they are primarily focused on managing the sensations of contractions in the abdomen and uterus. They don't directly address the sacral pain that characterizes back labor.
Choice C rationale:
Counterpressure against the sacrum is a specific technique that can be very effective for relieving back labor pain. It involves applying firm, steady pressure to the lower back, specifically the sacral area, using the hands, a fist, or a tennis ball. This pressure can help to counteract the intense sensations of pain and pressure in the lower back, providing significant relief. The mechanism behind this relief is likely related to:
Gate-control theory: Counterpressure may stimulate other nerve pathways, which can block or reduce pain signals from reaching the brain.
Counteracting pressure: The pressure applied to the sacrum may help to counteract the internal pressure of the baby's head against the sacrum, which can be a major source of back labor pain.
Muscle relaxation: Firm pressure can help to relax tense muscles in the lower back, which can contribute to pain.
Choice D rationale:
Conscious relaxation or guided imagery are techniques that can promote overall relaxation and reduce anxiety during labor. They involve using mental exercises to focus the mind on calming images or sensations. While these techniques can be helpful for some women, they may not be as effective for specifically targeting back labor pain as they are more general relaxation methods that don't directly address the sacral pain.
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