Correct Answer: D

Rationale: The correct answer is to hang the drainage bag below the bladder. This positioning helps prevent backflow of urine, reducing the risk of infection. Changing the catheter every 72 hours is not necessary unless clinically indicated and may increase infection risk by introducing pathogens. Ensuring the tubing is unkinked promotes proper urine flow but does not directly prevent infection. Emptying the drainage bag regularly is important to prevent urinary stasis but does not directly address infection prevention.

Correct Answer: B

Rationale: The correct answer is B: Tremors and increased blood pressure. During opioid withdrawal, individuals commonly experience symptoms such as tremors, increased blood pressure, and restlessness. Choice A, which suggests bradycardia and hypotension, is incorrect as opioid withdrawal often leads to tachycardia (rapid heart rate) and increased blood pressure. Choice C, severe muscle weakness and fatigue, is not a typical manifestation of opioid withdrawal. Choice D, severe hallucinations and delusions, is more characteristic of conditions like delirium tremens associated with alcohol withdrawal, rather than opioid withdrawal.

Correct Answer: B

Rationale: The correct answer is B. Potassium levels above 5.0 mEq/L can lead to cardiac issues, and a level of 6.5 mEq/L requires immediate intervention. Hyperkalemia can cause life-threatening cardiac arrhythmias. Choices A, C, and D are within normal ranges and do not require immediate intervention in the context of hemodialysis monitoring.

Correct Answer: B

Rationale: After a flexible bronchoscopy, it is essential to withhold food and liquids until the client's gag reflex returns. This precaution helps prevent aspiration, as the gag reflex protects the airway from foreign material. Irrigating the client's throat every 4 hours (Choice A) is unnecessary and may increase the risk of aspiration. Suctioning the client's oropharynx frequently (Choice C) can cause trauma and is not indicated unless there is a specific medical reason for it. Having the client refrain from talking for 24 hours (Choice D) is not necessary after a flexible bronchoscopy.

Correct Answer: C

Rationale: The correct answer is C: Rehabilitation and prevention of further deterioration. Tertiary prevention in mental health aims to provide interventions and support to individuals who already have a mental illness to prevent further deterioration and promote recovery. Choice A, identifying early signs of mental illness, is more aligned with primary prevention which focuses on preventing the onset of mental health problems. Choice B, preventing the occurrence of mental health problems, pertains to secondary prevention which involves early detection and intervention to prevent the progression of mental health issues. Choice D, providing a safe environment to prevent harm, is important but it is not the primary focus of tertiary prevention which is more centered on rehabilitation and improving the quality of life for individuals with existing mental health conditions.