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 B
Explanation
A. 0.45% sodium chloride: 0.45% sodium chloride solution, also known as half-normal saline, is a hypotonic solution used for rehydration and maintenance fluid therapy. However, in cases of
major burns where there is a significant loss of fluid and electrolytes, isotonic solutions are generally preferred.
B. Lactated Ringer's: Lactated Ringer's solution is an isotonic crystalloid solution that closely resembles the electrolyte composition of extracellular fluid. It is commonly used for fluid resuscitation in clients with major burns to replace lost fluids and electrolytes and restore
intravascular volume.
C. Dextrose 5% in water: Dextrose 5% in water is a hypotonic solution used primarily for hydration in clients with normal electrolyte levels or as a vehicle for administering medications.
It is not typically used for fluid resuscitation in clients with major burns, as it does not adequately replace lost electrolytes.
D. Dextrose 5% in 0.45% sodium chloride: This solution combines dextrose 5% and 0.45% sodium chloride and is used for maintenance fluid therapy and mild dehydration. However, in cases of major burns where there is significant fluid and electrolyte loss, isotonic solutions like lactated Ringer's or normal saline are preferred for fluid resuscitation.
Correct Answer is A
Explanation
A. To assess compatibility of the verapamil with newly ordered medications: Verapamil is a calcium channel blocker used to treat hypertension, angina, and arrhythmias. It has potential interactions with many other medications due to its effects on cardiac conduction and blood
pressure. Therefore, consulting the pharmacist is important to assess compatibility and potential drug interactions when new medications are prescribed.
B. To request a change in the dosage of the verapamil: Changing the dosage of verapamil may require a healthcare provider's order rather than consultation with a pharmacist.
C. To verify the frequency of administration of the verapamil: The frequency of administration of verapamil is typically determined by the healthcare provider and documented in the prescription. The pharmacist's role may involve dispensing the medication as prescribed but not verifying the frequency unless there are discrepancies.
D. To report the client's refusal to take the verapamil: Reporting the client's refusal to take the medication should be communicated to the healthcare provider for further assessment and
intervention. The pharmacist's role is primarily related to medication dispensing and ensuring appropriate use rather than addressing client refusals.
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