A charge nurse is teaching a new nurse how to clean surfaces contaminated with blood. Which agent should the charge nurse include in the teaching?

Correct Answer: D

Rationale: Chlorine bleach is the most appropriate agent for disinfecting surfaces contaminated with blood. It is effective in killing a wide range of pathogens, including viruses. Hydrogen peroxide (Choice A) is not as effective as chlorine bleach for bloodborne pathogen disinfection. Chlorhexidine (Choice B) and isopropyl alcohol (Choice C) are more commonly used for skin antisepsis rather than surface disinfection, making them less suitable options in this scenario.

Correct Answer: D

Rationale: The correct answer is D: 'This medication helps decrease swelling and mucus production.' Montelukast is used for long-term asthma management as it helps reduce inflammation and mucus production in the airways. It is not appropriate for acute asthma attacks. Choice A is incorrect because montelukast is not a rescue medication for acute attacks. Choice B is incorrect because montelukast is not specifically taken before exercise. Choice C is incorrect because montelukast is usually taken regularly, not just for a short duration.

Correct Answer: D

Rationale: The correct answer is D: Administer flumazenil. Flumazenil is the reversal agent for midazolam, a benzodiazepine, and should be administered to counteract respiratory depression. Placing the client in a prone position (choice A) could further compromise their breathing. Implementing positive pressure ventilation (choice B) is not indicated as the first step when dealing with respiratory depression due to sedation. Performing nasopharyngeal suctioning (choice C) is not appropriate in this situation where the client is experiencing respiratory depression due to medication sedation.

Correct Answer: C

Rationale: The correct answer is C. A serum creatinine level of 5 mg/dL is significantly elevated and indicates the need for hemodialysis to help filter waste products from the blood. Elevated creatinine levels suggest impaired kidney function and the inability to effectively filter waste from the body. Choices A, B, and D are within normal ranges and do not indicate the need for immediate hemodialysis in a client with chronic kidney disease.

Correct Answer: B

Rationale: Diminished deep tendon reflexes are a sign of magnesium toxicity. Magnesium sulfate can depress the central nervous system, leading to decreased reflexes. Respiratory rate of 12/min, urine output 40 mL/hr, and systolic blood pressure of 140 mm Hg are not specific findings of magnesium toxicity. Respiratory depression, oliguria, and hypotension are more concerning signs that require immediate attention.

Correct Answer: B

Rationale: The nurse should question the prescription to apply heat to the affected extremity for 45 minutes. Heat should not be applied in the first 48 hours after an acute injury, as it can increase swelling. Cold therapy is more appropriate initially. Choices A, C, and D are appropriate actions in the care of a client with a sprained ankle. Elevating the affected extremity helps reduce swelling, wrapping it with a compression dressing provides support, and assessing sensation, movement, and pulse every 4 hours is important to monitor for complications.

Correct Answer: B

Rationale: In this situation, the nurse should prioritize administering Hydromorphone (choice B), an opioid analgesic, to manage the severe pain effectively. Opioids are the first-line treatment for severe pain, especially in end-stage conditions like osteoporosis. Promethazine (choice A) is an antihistamine and antiemetic, not a potent analgesic. Ketorolac (choice C) is a nonsteroidal anti-inflammatory drug (NSAID) that may not provide sufficient pain relief in severe cases. Amitriptyline (choice D) is a tricyclic antidepressant used for neuropathic pain and depression, but it is not the first choice for managing severe pain in this scenario.

Correct Answer: A

Rationale: The correct action for the nurse to take in this situation is to discontinue the oxytocin infusion. Contractions occurring every 45 seconds indicate uterine hyperstimulation, which can pose risks to both the client and the fetus. By stopping the oxytocin infusion, the nurse can help prevent further complications. Choices B, C, and D are incorrect because increasing, decreasing, or maintaining the oxytocin infusion can exacerbate the uterine hyperstimulation and increase the risks associated with it.

Correct Answer: C

Rationale: The correct answer is C. A1c is a key indicator of long-term diabetes management, reflecting average blood sugar levels over the past 2-3 months. Achieving a target A1c of 5% indicates good control of blood sugar levels and reduces the risk of diabetes-related complications. Choices A, B, and D are not as appropriate as they focus on short-term tasks or individual blood glucose readings, rather than long-term management and outcomes.