Correct Answer: A

Rationale: The correct answer is A: Inspection, Palpation, Percussion, Auscultation. A focused respiratory assessment involves inspecting the chest for symmetry and signs of distress, palpating for tenderness or abnormal masses, performing percussion to assess underlying tissues, and auscultating lung sounds. Choice B is incorrect as observation is a broad term that can encompass both inspection and palpation. Choice C is incorrect as auscultation is usually performed after inspection and palpation. Choice D is incorrect as observation should be more specific, and auscultation is a key component that is typically done last in a respiratory assessment.

Correct Answer: B

Rationale: The correct answer is to investigate the client's recent medication changes. In a client with dementia who frequently becomes agitated, medication changes can often be a significant factor contributing to their behavior. Checking recent medication changes can help identify if any specific medication is causing or exacerbating the agitation. Choice A about fluid and electrolyte balance is less likely to be the priority unless there are specific indications in the medical record. Choice C, investigating recent changes in cognitive functioning, may be important but addressing the agitation first is a more immediate concern. Choice D, investigating the client's psychosocial environment, is also important but may not directly address the immediate cause of the agitation as medication changes could.

Correct Answer: A

Rationale: The correct answer is A: Serum glucose level. In Cushing's disease, there is an excess production of cortisol, leading to hyperglycemia. This results in an increase in serum glucose levels. Choices B, C, and D are incorrect because Cushing's disease does not directly affect serum calcium levels, lymphocyte count, or serum potassium levels.

Correct Answer: D

Rationale: The correct action the nurse should take is to gently close the client's eyelids. This is a respectful and common practice in postmortem care before allowing the family to view the body. Applying moisturizing lotion to the skin is unnecessary and may not be appropriate at this time. Turning off the lights might not be necessary and could impact the viewing environment for the family. While removing all jewelry is generally a good practice, it is not as crucial as gently closing the client's eyelids for postmortem care.

Correct Answer: B

Rationale: The correct action for the nurse to take when caring for a client with stomatitis due to chemotherapy is to encourage the client to eat soft foods. Soft foods help prevent further irritation to the already inflamed and sore oral mucosa. Providing lemon-glycerin swabs may further irritate the mucosa due to the acidic nature of lemon. Avoiding toothpaste is advisable as many toothpaste products contain ingredients that can aggravate stomatitis. Instructing the client to use a mouthwash containing alcohol is contraindicated as alcohol-based mouthwashes can be too harsh and drying for the already sensitive oral tissues.