Correct Answer: D

Rationale: The correct answer is to check the client's oxygen saturation level first. This action is crucial in assessing the severity of dyspnea and determining the necessity for oxygen therapy. Administering oxygen therapy without knowing the current oxygen saturation level can be inappropriate and potentially harmful. Encouraging deep breathing exercises and raising the head of the bed are important interventions, but assessing the oxygen saturation level takes precedence in managing dyspnea in a client with COPD.

Correct Answer: B

Rationale: Dry mucous membranes are a classic sign of dehydration, especially in elderly individuals. Dehydration can lead to decreased moisture in the mucous membranes, making them dry. Skin turgor, although commonly assessed for dehydration in younger individuals, may be less reliable in the elderly due to changes in skin elasticity. Elevated temperature is more indicative of an infection or other conditions. Increased pulse pressure is not typically associated with dehydration in the elderly.

Correct Answer: C

Rationale: The correct answer is C, chocolate pudding. A full liquid diet consists of smooth, creamy foods like pudding. Creamed peas (choice A) are not typically allowed on a full liquid diet as they may contain solid pieces. Cottage cheese (choice B) and applesauce (choice D) are also not part of a full liquid diet as they are not in liquid form.

Correct Answer: C

Rationale: The correct answer is C: Laxatives. Laxatives can be harsh on elderly clients, leading to dependence and potential side effects. While fiber supplements (B) and stool softeners (D) are generally safe options to promote regular bowel movements, laxatives should be used cautiously in older adults due to their potential risks. Glycerin suppositories (A) can also be a safe and effective option for managing constipation in the elderly, but laxatives should be avoided unless deemed necessary by a healthcare provider.

Correct Answer: C

Rationale: Black, tarry stools can indicate gastrointestinal bleeding, which is a serious complication of peptic ulcer disease. This finding suggests active bleeding in the gastrointestinal tract, requiring immediate attention. A normal heart rate of 72 beats per minute (choice A) is within the expected range. A hemoglobin level of 12 g/dL (choice B) is also within normal limits. Nausea and vomiting (choice D) are common symptoms associated with peptic ulcer disease but may not necessarily indicate active bleeding like black, tarry stools.