Correct Answer: B

Rationale: The correct first action the nurse should take when preparing to administer a blood transfusion is to verify the blood type and crossmatch. This step is crucial to ensure compatibility and prevent transfusion reactions. Obtaining the client's consent is important but should follow the verification process. Taking baseline vital signs is necessary before starting the transfusion, but confirming compatibility takes precedence. Priming the IV with normal saline is a step done before starting the transfusion, after ensuring blood compatibility.

Correct Answer: A

Rationale: The correct answer is A: 'It can cause dependency.' Lorazepam is a benzodiazepine known to cause dependency, so it is crucial for clients to be informed about this potential risk. Choice B is incorrect as combining lorazepam with alcohol can lead to increased sedation and other adverse effects. Choice C is incorrect because lorazepam, like any medication, can have side effects such as drowsiness, dizziness, or confusion. Choice D is also incorrect as lorazepam is a sedative-hypnotic medication, not a stimulant.

Correct Answer: C

Rationale: The correct answer is C: Bradykinesia. Bradykinesia, which refers to slowness of movement, is a characteristic symptom of Parkinson's disease. Other common manifestations in Parkinson's disease include tremors, muscle rigidity, orthostatic hypotension, and drooling. Pruritus (choice A) is unrelated to Parkinson's disease. While hypertension (choice B) can coexist with Parkinson's disease due to autonomic dysfunction, it is not a specific hallmark manifestation. Xerostomia (choice D) is not a primary symptom associated with Parkinson's disease.

Correct Answer: B

Rationale: The correct answer is to monitor signs of diarrhea when a client is prescribed azithromycin. Azithromycin is known to cause gastrointestinal side effects, particularly diarrhea. Monitoring for diarrhea is crucial to assess the client's response to the medication and to prevent complications such as dehydration. Monitoring liver function (choice A), blood glucose levels (choice C), and serum electrolytes (choice D) are not typically indicated specifically for clients prescribed azithromycin unless there are other specific reasons or conditions that warrant such monitoring.

Correct Answer: B

Rationale: In situations where the type of hazard is unknown, the healthcare provider should choose the highest level of protection equipment available. This helps ensure adequate protection against any potential hazards that may be present. Using only basic gloves and a mask (Choice A) may not provide sufficient protection if the hazard is more severe. Opting for respiratory protection only (Choice C) may leave other areas of the body vulnerable to exposure. While asking a colleague for advice (Choice D) is good practice in general, in urgent situations like mass-casualty incidents with unknown hazards, it is crucial to prioritize immediate protection by selecting the highest level of PPE.