Naloxone is effective because of which action?
Increasing the excretion of morphine sulfate by altering serum pH.
Preventing activation of opioid receptors through antagonist actions.
Regulating the sensitivity of opioid receptors by neurochemical alterations.
Countering the effects of morphine sulfate by agonist actions.
The Correct Answer is B
a) Naloxone does not increase the excretion of opioids by altering serum pH; its primary action is at the receptor level.
b) Naloxone is an opioid receptor antagonist, meaning it blocks or prevents the activation of opioid receptors. This is how it counteracts the effects of opioids like morphine.
c) Naloxone does not regulate the sensitivity of opioid receptors by neurochemical alterations. Its action is more direct as an antagonist.
d) Naloxone is not an agonist; it does not produce opioid-like effects. Instead, it competes with opioids for receptor binding and blocks their effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
a) Spironolactone is a potassium-sparing diuretic, and the use of salt substitutes, which often contain potassium chloride, can lead to increased potassium levels, posing a risk of hyperkalemia.
b) Continuing medication even when feeling well is generally advised, especially for chronic conditions. Discontinuing medication without medical guidance is not recommended. c) While a healthy diet is important, this option does not specifically address the unique considerations related to spironolactone use.
d) Checking the pulse is not directly related to self-care in terms of the medication's side effects or interactions.
Correct Answer is C
Explanation
A) Gradually reducing the prescribed dose of an antiepileptic like phenytoin without consulting the healthcare provider can lead to increased seizure activity. This is not a recommended self care measure.
B) Expecting green urine is not associated with phenytoin. This statement is not accurate.
C) Phenytoin can cause gingival hyperplasia and other oral health issues. Emphasizing good oral hygiene practices, such as brushing after every meal and flossing daily, is crucial.
D) Instilling mineral oil into both ears is not a self-care measure related to phenytoin.
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