Correct Answer: C

Rationale: Oxybutynin is prescribed to treat overactive bladder by reducing muscle spasms of the bladder. It is classified as an anticholinergic medication. Oxycodone is an opioid used for pain management. Bupropion is an antidepressant used to treat depression. Buspirone is an anxiolytic used to manage anxiety disorders.

Correct Answer: A

Rationale: The correct answer is A: Muscle pain and weakness. Atorvastatin is known to potentially cause muscle pain and weakness, which could indicate muscle damage or rhabdomyolysis. This adverse effect should be closely monitored by the practical nurse to ensure early detection and appropriate management.

Correct Answer: B

Rationale: Tremors are a common symptom of theophylline toxicity. Other symptoms that may indicate theophylline toxicity include nausea, vomiting, and seizures. It is important for the nurse to monitor the client closely for these signs of toxicity and report them promptly to the healthcare provider to prevent further complications.

Correct Answer: B

Rationale: The correct answer is B. The practical nurse should instruct the client that their sexual partner(s) should also be treated when dealing with vaginal trichomoniasis. This is crucial to prevent reinfection as sexual intercourse is the route of spread for this infection.

Correct Answer: C

Rationale: Reviewing the most recent coagulation lab values is crucial after receiving multiple doses of a new oral anticoagulant to ensure the patient is within the desired therapeutic range and to prevent adverse events related to over or under-anticoagulation. Notifying the healthcare provider of any concerning findings is important, but it may not be the immediate priority after receiving the third dose. Providing a PRN NSAID for gum discomfort is not typically indicated with oral anticoagulant therapy, as it may increase the risk of bleeding. Completing a medication variance report is more relevant in cases of medication errors or discrepancies, which may not apply in this scenario.