Patient Data
The nurse is discussing the client's pain management with a student nurse. Choose the most likely options for the information missing from the statement(s) by selecting from the lists of options provided.
Morphine is a(n)
and it activates receptors and is used to relieve .The Correct Answer is {"dropdown-group-1":"C","dropdown-group-2":"A","dropdown-group-3":"C"}
The correct answer is:
Morphine is a(n) **pure opioid antagonist** and it activates **mu** receptors and is used to relieve **severe pain**.
Choice area A
Choice A reason:
A pure opioid antagonist is a drug that blocks the effects of opioids by binding to their receptors without activating them. Morphine is not a pure opioid antagonist, but a pure opioid agonist, which means it binds to and activates opioid receptors, producing analgesia and other effects. Therefore, choice A is incorrect.
Choice B reason:
An endogenous opioid is a naturally occurring substance in the body that binds to and activates opioid receptors, such as endorphins and enkephalins. Morphine is not an endogenous opioid, but an exogenous opioid, which means it is derived from an external source, such as the opium poppy. Therefore, choice B is incorrect.
Choice C reason:
A pure opioid antagonist is the correct term for morphine, as explained above. Therefore, choice C is correct.
Choice D reason:
A local anesthetic is a drug that blocks the transmission of nerve impulses in a specific area of the body, causing numbness and loss of sensation. Morphine is not a local anesthetic, but a systemic analgesic, which means it affects the whole body and reduces the perception of pain. Therefore, choice D is incorrect.
Choice area B
Choice A reason:
Mu receptors are one of the three types of opioid receptors in the body, along with kappa and delta receptors. Mu receptors are responsible for most of the analgesic and euphoric effects of opioids, as well as respiratory depression and physical dependence. Morphine has a high affinity for mu receptors and activates them strongly. Therefore, choice A is correct.
Choice B reason:
Kappa receptors are another type of opioid receptors in the body. Kappa receptors mediate some analgesic effects of opioids, as well as dysphoria, sedation, and miosis. Morphine has a low affinity for kappa receptors and activates them weakly. Therefore, choice B is incorrect.
Choice C reason:
Delta receptors are the third type of opioid receptors in the body. Delta receptors modulate some analgesic effects of opioids, as well as emotional responses and memory. Morphine has a low affinity for delta receptors and activates them weakly. Therefore, choice C is incorrect.
Choice D reason:
NMDA receptors are not opioid receptors, but glutamate receptors that are involved in synaptic plasticity, learning, memory, and pain modulation. Some drugs that act on NMDA receptors, such as ketamine and dextromethorphan, have analgesic properties, especially for neuropathic pain. Morphine does not act on NMDA receptors. Therefore, choice D is incorrect.
Choice E reason:
GABA receptors are not opioid receptors, but gamma-aminobutyric acid receptors that are involved in inhibitory neurotransmission in the central nervous system. Some drugs that act on GABA receptors, such as benzodiazepines and barbiturates, have sedative, anxiolytic, anticonvulsant, and muscle relaxant properties. Morphine does not act on GABA receptors. Therefore, choice E is incorrect.
Choice area C
Choice A reason:
Mild pain is pain that is easily tolerated and does not interfere with normal activities or sleep. Mild pain can usually be managed with non-opioid analgesics, such as acetaminophen or ibuprofen. Morphine is not used to relieve mild pain, as it is too potent and has more side effects and risks than non-opioid analgesics. Therefore, choice A is incorrect.
Choice B reason:
Moderate pain is pain that causes discomfort and affects normal activities or sleep to some extent. Moderate pain can usually be managed with combination analgesics, such as codeine or hydrocodone with acetaminophen or ibuprofen. Morphine can be used to relieve moderate pain in some cases, but it is not the first-line option, as it may be more effective and safer to use lower doses of opioids with non-opioid analgesics. Therefore, choice B is incorrect.
Choice C reason:
Severe pain is pain that causes significant distress and impairs normal activities or sleep to a great extent. Severe pain usually requires strong opioids, such as morphine or fentanyl, to achieve adequate relief. Morphine is commonly used to relieve severe pain in various settings, such as post-operative pain, cancer pain, or acute myocardial infarction. Therefore, choice C is correct.
Choice D reason:
Neuropathic pain is pain that results from damage or dysfunction of the nervous system, such as diabetic neuropathy or post-herpetic neuralgia. Neuropathic pain often responds poorly to conventional analgesics, including opioids. Morphine can be used to relieve neuropathic pain in some cases, but it may not be very effective or require higher doses than for nociceptive pain (pain that results from tissue damage or inflammation). Therefore, choice D is incorrect.
Choice E reason:
Inflammatory pain is pain that results from tissue damage or inflammation, such as arthritis or appendicitis. Inflammatory pain often responds well to non-opioid analgesics, especially NSAIDs, which have anti-inflammatory properties. Morphine can be used to relieve inflammatory pain in some cases, but it may not be necessary or optimal to use opioids for this type of pain, as they do not have anti-inflammatory effects and may cause more side effects and risks than non-opioid analgesics. Therefore, choice E is incorrect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is []
Explanation
Body System: Respiratory
The correct choice is A
Choice A: Assess lung sounds This is the correct choice because the client may have developed an allergic reaction to vancomycin, which can cause bronchospasm and wheezing. Assessing lung sounds can help the nurse monitor the client’s respiratory status and intervene if needed.
Choice B: Provide a calm environment This is not the correct choice because providing a calm environment is not specific to the respiratory system. It may help the client feel more comfortable, but it does not address the potential respiratory complications of an allergic reaction.
Choice C: Pain medication This is not the correct choice because pain medication is not related to the respiratory system. The client did not report any pain, and pain medication may have adverse effects on the respiratory system, such as respiratory depression.
Choice D: Chest x-ray This is not the correct choice because a chest x-ray is not indicated for the client at this time. A chest x-ray is a diagnostic test that can show abnormalities in the lungs, such as pneumonia or pleural effusion. However, the client’s symptoms are more likely caused by an allergic reaction, which would not be visible on a chest x-ray.
Body System: Cardiovascular
The correct answer is A, B, and C. Here are the explanations for each choice:
Choice A: Monitor vital signs continuously. This is a correct and appropriate nursing intervention for the cardiovascular system. The client may have hypotension, tachycardia, or arrhythmias due to anaphylaxis or the effects of medications. Continuous monitoring can help detect any changes and guide interventions accordingly .
Choice B: Provide warmth. This is also a correct and appropriate nursing intervention for the cardiovascular system. The client may lose heat due to vasodilation, sweating, or exposure during the procedure. Providing warmth can help prevent hypothermia and shivering, which can increase oxygen demand and worsen cardiac function. Providing warmth can also improve comfort and reduce anxiety .
Choice C: Defibrillator at bedside. This is another correct and appropriate nursing intervention for the cardiovascular system. The client is at risk of cardiac arrest due to anaphylaxis, bradycardia, or pacemaker malfunction. Having a defibrillator at bedside can facilitate prompt resuscitation if needed.
Choice D: ECHO. This is an incorrect and inappropriate nursing intervention for the cardiovascular system. ECHO is a diagnostic test that uses ultrasound waves to create images of the heart and its structures. It can help evaluate the client’s cardiac function, valve function, and presence of any complications such as pericardial effusion or tamponade. However, this is not a priority intervention for the client who is experiencing an anaphylactic reaction and needs immediate treatment to stabilize her condition. ECHO can be done later after the client recovers from the acute episode.
Body System: Immunological
The correct answer is **A and D**.
- Choice A: Administer antihistamine. This is a correct and appropriate nursing intervention for the immunological system. The client is having an anaphylactic reaction to vancomycin, which is a type of hypersensitivity reaction mediated by IgE antibodies. Antihistamines, such as diphenhydramine, can block the effects of histamine, which is a major mediator of allergic inflammation and symptoms. Antihistamines can help reduce itching, hives, flushing, and bronchoconstriction¹².
- Choice B: IV fluids. This is an incorrect and inappropriate nursing intervention for the immunological system. IV fluids are not directly related to the immune response or the allergic reaction. IV fluids are mainly used to maintain hydration, electrolyte balance, and blood pressure. However, IV fluids may be indicated for the client as part of the cardiovascular or renal system interventions³.
- Choice C: Assess rash. This is an incorrect and inappropriate nursing intervention for the immunological system. Assessing rash is not a specific intervention for the immune response or the allergic reaction. Assessing rash is part of the general assessment of the client's skin condition, which may reflect other factors such as infection, inflammation, or drug toxicity. However, assessing rash may be helpful to monitor the severity and progression of the allergic reaction and the effectiveness of the treatment⁴.
- Choice D: Administer steroid. This is a correct and appropriate nursing intervention for the immunological system. The client is having an anaphylactic reaction to vancomycin, which is a type of hypersensitivity reaction mediated by IgE antibodies. Steroids, such as methylprednisolone, can suppress the immune system and reduce the production of inflammatory mediators, such as cytokines and prostaglandins. Steroids can help decrease swelling, inflammation, and tissue damage¹².
Correct Answer is ["167"]
Explanation
To find the answer, we can use the following formula:
(mL of fluid / hours of infusion) = mL/hr
Substituting the values from the question, we get:
(500 mL / 3 hours) = 166.67 mL/hr
Rounding to the nearest whole number, we get 167 mL/hr.
Therefore, the nurse should program the infusion pump to deliver 167 mL/hr of dextrose in 5% water IV.
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