Correct Answer: A

Rationale: The correct answer is A. Nitrofurantoin can cause a harmless brown discoloration of urine. Choice B is also correct as it should be taken with food to enhance absorption. Choice C is incorrect as nitrofurantoin does have side effects, such as gastrointestinal disturbances. Choice D is incorrect as nitrofurantoin is not recommended during the last month of pregnancy due to potential risks to the fetus.

Correct Answer: A

Rationale: The correct answer is A: A recent peer-reviewed nursing research article. Peer-reviewed research articles provide the most current and reliable evidence-based practice information for clinical care. Choice B, a website for a nursing association, may have valuable information but may not always guarantee the highest level of evidence. Choice C, a textbook published 5 years ago, may not reflect the most up-to-date practices and guidelines. Choice D, an expert opinion from a seasoned nurse, though valuable, is not as reliable as evidence derived from peer-reviewed research articles.

Correct Answer: B

Rationale: The correct answer is B: 'It should be taken with meals.' Metformin should be taken with meals to minimize gastrointestinal side effects and improve absorption. Choice A is incorrect because metformin is actually associated with weight loss or weight neutrality. Choice C is incorrect as metformin is typically taken orally and not via injection. Choice D is also incorrect because metformin is not known to cause hypoglycemia as a primary side effect.

Correct Answer: A

Rationale: When administering hydrocodone, a healthcare professional should assess the respiratory rate first because hydrocodone is an opioid that can lead to respiratory depression. Monitoring the respiratory rate helps to detect any signs of respiratory distress or depression early on. Assessing blood pressure, pain level, or heart rate is also important but not the priority when administering hydrocodone, as the risk of respiratory depression is a more critical concern.

Correct Answer: A

Rationale: The nurse should assess the client with a fractured femur and sharp chest pain first. Sharp chest pain in this client may indicate a pulmonary embolism, a life-threatening condition requiring immediate attention. The other options describe important patient conditions but do not pose an immediate threat to life like a potential pulmonary embolism does.