Correct Answer: B

Rationale: The correct answer is to identify any reversible causes of delirium. Delirium is often caused by underlying issues such as infections, medication side effects, or metabolic imbalances. Addressing these root causes can help resolve delirium more effectively. Administering antipsychotic or sedative medications should not be the initial approach as they can worsen delirium in some cases. Providing a low-stimulation environment is beneficial but not the priority when reversible causes need to be addressed first.

Correct Answer: D

Rationale: The correct answer is D because rinsing the mouth is essential to prevent staining and irritation caused by ferrous sulfate elixir. Choices A, B, and C are incorrect. Taking ferrous sulfate elixir before meals (Choice A) is not necessary. Mixing it with water (Choice B) is not recommended as it may alter the medication's effectiveness. Taking the medication once a week (Choice C) is incorrect as ferrous sulfate is usually prescribed daily or as directed by a healthcare provider.

Correct Answer: C

Rationale: The correct intervention for a client experiencing chronic pain is to teach relaxation techniques. This helps the client manage pain more effectively by reducing stress and anxiety, which can contribute to the perception of pain. Providing distractions like television (Choice A) may offer temporary relief but does not address the underlying issue of chronic pain. Administering pain medication around the clock (Choice B) may lead to dependency and not promote holistic pain management. Massage therapy (Choice D) can be beneficial but may not be as effective as teaching relaxation techniques in the long term for managing chronic pain.

Correct Answer: A

Rationale: The correct answer is A: Autonomy. Autonomy is the right to make one's own decisions, even if they may not be in the person's best interest. Autonomy emphasizes an individual's freedom to choose and act according to their own values and beliefs. Non-maleficence (B) refers to the principle of 'do no harm,' Justice (C) refers to fairness and equality in the distribution of resources or benefits, and Beneficence (D) refers to the obligation to do good and act in the patient's best interest.

Correct Answer: A

Rationale: To assess a patient for potential deep vein thrombosis (DVT), healthcare professionals should look for unilateral leg swelling. This is a classic sign of DVT. While encouraging early mobilization is generally beneficial for preventing DVT, it is not a method of assessment. Checking for calf tenderness is also relevant but not as specific as unilateral leg swelling. Observing for redness and warmth can be signs of inflammation but are not as specific to DVT as unilateral leg swelling.