Correct Answer: C

Rationale: The correct answer is to instruct the client to restrict protein intake. In chronic renal failure, the kidneys are unable to effectively filter waste products, so limiting protein helps reduce the buildup of waste in the body. Increasing calcium intake (Choice A) is not typically necessary unless there is a specific deficiency. Providing a diet high in potassium (Choice B) is contraindicated as potassium levels need to be monitored and controlled in renal failure. Increasing fluid intake (Choice D) may be necessary depending on the individual's condition, but restricting protein intake is a more critical dietary instruction for clients with chronic renal failure.

Correct Answer: D

Rationale: In mild anxiety, the client is expected to have a heightened perceptual field. This means that their perception is increased, enhancing their awareness and ability to concentrate. Feelings of dread (Choice A) are more common in moderate to severe anxiety. Rapid speech (Choice B) and purposeless activity (Choice C) are more indicative of moderate to severe anxiety where the individual may exhibit signs of agitation and restlessness.

Correct Answer: A

Rationale: In this scenario, the client is experiencing uterine hyperstimulation with contractions every 45 seconds lasting 90 seconds. This frequency and duration of contractions can lead to fetal distress. The appropriate nursing action is to discontinue the oxytocin infusion immediately to prevent complications. Increasing or maintaining the oxytocin infusion would exacerbate the situation, while decreasing it may not be sufficient to address the issue effectively.

Correct Answer: C

Rationale: The correct answer is C: 'This medication will decrease swelling and mucus production.' Montelukast is a leukotriene receptor antagonist that works by reducing swelling and mucus production in the airways, helping to manage asthma symptoms in the long term. Choices A, B, and D are incorrect because montelukast is not used for immediate relief during asthma attacks, pre-exercise prophylaxis, or short-term treatment; instead, it is taken regularly for asthma control.

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.