Correct Answer: B

Rationale: The essential question during screening for alcohol use disorder is asking about blackouts or loss of consciousness, which can be indicative of excessive drinking and related to alcohol use disorder. Choices A, C, and D are not as directly related to screening for alcohol use disorder. Employment status (Choice A) is not a primary question in alcohol use disorder screening. Sleep quality (Choice C) and family history of substance use (Choice D) may be relevant but are not as crucial as inquiring about blackouts or loss of consciousness.

Correct Answer: A

Rationale: The correct action for the nurse to take first is to educate the client about the potential health risks of leaving against medical advice (AMA). By providing this information, the nurse can help the client make an informed decision regarding their healthcare. Choice B, asking the client to sign a document, can be done after the client has been informed about the risks. Choice C, documenting the client's statement, is important but should not take precedence over educating the client. Choice D, completing an incident report, is not the priority when a client is requesting to leave AMA.

Correct Answer: C

Rationale: The correct answer is Ciprofloxacin. Ciprofloxacin is an antibiotic effective in treating anthrax exposure. Fluconazole (Choice A) is an antifungal medication used for fungal infections, not anthrax. Tobramycin (Choice B) is an antibiotic used for bacterial infections but is not the first line of treatment for anthrax. Vancomycin (Choice D) is also an antibiotic, but it is not the preferred choice for treating anthrax.

Correct Answer: B

Rationale: Obtaining a 12-lead ECG is crucial in this situation to assess cardiac function due to the elevated potassium level. High potassium levels can lead to dangerous arrhythmias, and an ECG helps in detecting any cardiac abnormalities. Choices A, C, and D are incorrect. Suggesting a salt substitute can further elevate the client's potassium levels. Checking serum sodium levels is not the priority when dealing with high potassium levels. Advising the client to add citrus juices and bananas, which are high in potassium, would worsen the situation.

Correct Answer: B

Rationale: To infuse 50 mL over 20 minutes, the pump should be set to 150 mL/hr. This calculation ensures the correct rate for the infusion of the medication. Choices A, C, and D are incorrect as they do not align with the correct calculation based on the given information.