A nurse is assessing a client who has received oxycodone. The nurse notes that the client's respiratory rate is 8/min. The nurse should identify that which of the following is the pathophysiology for the client's respiratory rate?
Oxycodone blocks the sodium channel suspending nerve conduction.
Oxycodone inhibits prostaglandin synthesis.
Oxycodone promotes vasodilation of cranial arteries.
Oxycodone uses central nervous system depression.
The Correct Answer is D
A. Oxycodone primarily exerts its analgesic effects through binding to opioid receptors and modulating neurotransmitter release, rather than blocking sodium channels.
B. Oxycodone does not directly inhibit prostaglandin synthesis; this mechanism is associated with nonsteroidal anti-inflammatory drugs (NSAIDs).
C. Oxycodone does not promote vasodilation of cranial arteries. This mechanism is more commonly associated with medications used to treat migraines, such as triptans.
D. Oxycodone is an opioid analgesic that acts centrally on the nervous system to depress respiratory drive, leading to respiratory depression, especially at higher doses.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Dobutamine: Dobutamine is a sympathomimetic medication used to increase cardiac output in conditions such as heart failure or cardiogenic shock. It is not indicated for the management of severe hypertension.
B. Epinephrine: Epinephrine is a sympathomimetic medication used for the management of severe allergic reactions (anaphylaxis), cardiac arrest, and severe asthma exacerbations. It is not indicated for the management of severe hypertension.
C. Dexamethasone: Dexamethasone is a corticosteroid medication used for a variety of
conditions, including inflammation, allergic reactions, and certain cancers. It is not indicated for the management of severe hypertension.
D. Nitroprusside: Nitroprusside is a potent vasodilator used for the rapid reduction of blood pressure in hypertensive emergencies, such as hypertensive crises or malignant hypertension. It acts quickly to dilate both arterial and venous vessels, leading to a rapid decrease in blood pressure. Therefore, it is the appropriate choice for this client with severe hypertension and a severe headache.
Correct Answer is C
Explanation
A. An increased heart rate can be a sign of dehydration and would not indicate that IV fluid replacement has been effective.
B. Excessive thirst is a symptom of dehydration and would not indicate that IV fluid replacement has been effective.
C. Moist oral mucous membranes indicate improved hydration status and are a positive response to IV fluid replacement.
D. Decreased blood pressure is a sign of dehydration and would not indicate that IV fluid replacement has been effective.
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