A nurse is caring for a patient who is postoperative and receiving fentanyl via patient-controlled analgesia. The patient has a prescription for naloxone.
What is the purpose of naloxone?
To suppress respiratory secretions
To block the effects of opioids on the central nervous system
To treat nausea
To treat urinary retention
The Correct Answer is B
Choice A rationale:
Naloxone does not have any direct effect on respiratory secretions. It works by binding to opioid receptors in the brain and reversing the effects of opioids, such as respiratory depression.
While opioids can cause a decrease in respiratory secretions, this is not the primary reason for administering naloxone.
It is important to note that naloxone can actually worsen respiratory secretions in some patients, particularly those with chronic obstructive pulmonary disease (COPD) or other respiratory conditions.
Choice B rationale:
Naloxone is a medication that is specifically designed to block the effects of opioids on the central nervous system (CNS).
It is a competitive antagonist, which means that it binds to opioid receptors in the brain and prevents opioids from binding to those receptors.
This can reverse the effects of opioids, such as respiratory depression, sedation, and hypotension.
Naloxone is often used to treat opioid overdose, but it can also be used to prevent opioid-induced respiratory depression in patients who are receiving opioids for pain relief.
Choice C rationale:
Naloxone is not effective in treating nausea.
In fact, it can actually worsen nausea in some patients.
This is because naloxone can block the effects of opioids in the brain, and opioids can sometimes have a nausea-relieving effect.
Choice D rationale:
Naloxone is not effective in treating urinary retention.
Urinary retention is a common side effect of opioids, but it is not caused by the effects of opioids on the CNS. Urinary retention is typically caused by the effects of opioids on the bladder muscles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Hypovolemic shock is a life-threatening condition that occurs when the body loses a significant amount of blood or fluids, leading to a decrease in circulating blood volume. This can result in inadequate perfusion of organs and tissues, which can cause damage and even death if not treated promptly.
In this case, the athlete's symptoms and vital signs are consistent with hypovolemic shock. The athlete has been practicing twice a day in the heat, which can lead to significant fluid loss through sweating. The athlete is also dizzy, which is a common symptom of hypovolemia due to decreased blood flow to the brain. The athlete's blood pressure is low (100/2 mm Hg), pulse rate is elevated (100 beats/minute), and respiratory rate is increased (26 breaths/minute), all of which are compensatory mechanisms to try to maintain blood pressure and perfusion in the setting of hypovolemia. The athlete's skin is cool to touch
and pale in color, which is due to decreased blood flow to the skin. The athlete also does not remember the last voiding time, which may indicate decreased urine output, another sign of hypovolemia.
Key points supporting hypovolemic shock:
Significant fluid loss due to exercise in the heat Dizziness
Low blood pressure Elevated pulse rate Increased respiratory rate Cool, pale skin
Decreased urine output Additional details:
Hypovolemic shock can be caused by various factors, including:
Hemorrhage (blood loss) Severe dehydration Burns
Severe vomiting or diarrhea
Treatment for hypovolemic shock typically involves:
Intravenous fluid replacement to restore circulating blood volume Blood transfusion if the shock is due to hemorrhage
Oxygen therapy to support breathing
Medications to support blood pressure and heart function
Correct Answer is C
Explanation
Choice A rationale:
Elevating the head of the bed can promote comfort and ease breathing, but it's not the first priority in this situation. The nurse needs to assess the client's gastrointestinal status before offering any fluids or food.
While elevating the head of the bed may be helpful in some postoperative situations, it doesn't directly address the client's request for something to drink or the need to assess for potential contraindications to oral intake.
It's important to prioritize assessment before intervention to ensure safe and effective care.
Choice B rationale:
Offering apple juice, a clear liquid, might seem appropriate given the postoperative orders, but it's premature without first assessing the client's abdomen.
Auscultation can reveal important information about bowel sounds, which can indicate whether the client's gastrointestinal system is ready to tolerate fluids or food.
Prematurely offering fluids could lead to complications like nausea, vomiting, or aspiration if the client's bowels are not functioning properly.
Choice D rationale:
Ordering a lunch tray is not appropriate at this stage. The nurse needs to first assess the client's tolerance for clear liquids before advancing the diet.
Advancing the diet too quickly could also lead to gastrointestinal complications.
It's important to follow the postoperative orders and progress the diet gradually as tolerated.
Choice C rationale:
Auscultating the client's abdomen is the essential first step in this scenario. It allows the nurse to gather crucial data about the client's gastrointestinal status.
By listening to bowel sounds, the nurse can determine if the client's intestines are active and functioning properly. If bowel sounds are present and normal, it suggests that the client is likely able to tolerate clear liquids.
If bowel sounds are absent or abnormal, it may indicate a potential problem, such as ileus (a temporary paralysis of the intestines), and the nurse would need to hold oral intake and notify the healthcare provider.
This assessment provides essential information to guide the nurse's subsequent actions and ensure the client's safety.
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