Correct Answer: A

Rationale: Choice A is correct because applying oxygen through a tube in the nose provides comfort and aligns with the client's wishes for palliative care without resuscitation. This intervention can help alleviate breathing difficulties and maintain comfort without initiating full resuscitation efforts, respecting the client's decision. Choice B is incorrect as it goes against the client's expressed wish to decline resuscitation in her living will. Choice C is not the most appropriate response as it does not directly address the client's immediate concern of difficulty breathing and lacks specificity. Choice D, although focusing on comfort measures, is less specific than the correct choice A in addressing the client's immediate need for assistance with breathing.

Correct Answer: B

Rationale: The correct sequence for giving a bath starts with cleaning the eyes, followed by the face, both arms, chest, hands/nails, abdomen, both legs, perineal hygiene, back, and finally the buttocks/anus. Therefore, the first area to be cleaned during a bath is the eyes. Choices A, C, and D are incorrect as per the standard procedure for providing a bath.

Correct Answer: A

Rationale: In situations where a client is in the terminal stage of cancer and crying, it is essential for the nurse to provide comfort and support. Sitting with the client and holding their hand can offer a sense of presence and emotional support, showing empathy and understanding. Encouraging the client to talk about their feelings (choice B) is also important, but initially, non-verbal support through physical presence can be comforting. Leaving the client alone to cry (choice C) can make the client feel abandoned and unsupported during a vulnerable moment. Ignoring the client's crying (choice D) is not appropriate and lacks compassion and empathy, which are crucial in end-of-life care.

Correct Answer: A

Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.

Correct Answer: D

Rationale: Hydrocolloid dressings are ideal for promoting healing by secondary intention in wound infections. These dressings create a moist environment that supports autolytic debridement and facilitates the healing process. Dry gauze dressings (Option A) may lead to adherence, causing trauma upon removal and disrupting the wound bed. Wet-to-dry dressings (Option B) are primarily used for mechanical debridement and can be painful during dressing changes. Transparent film dressings (Option C) are more suitable for superficial wounds with minimal exudate and are not typically used for wound infections requiring healing by secondary intention.