Correct Answer: A

Rationale: The correct answer is A: Hypokalemia increases the risk of dysrhythmias when taking digoxin, making potassium intake crucial. Digoxin toxicity is more likely in patients with low potassium levels, leading to an increased risk of dysrhythmias. Choices B, C, and D are incorrect because hypokalemia in combination with digoxin is primarily associated with dysrhythmias rather than oliguria, irritability, anxiety, or alteration of consciousness.

Correct Answer: A

Rationale: The correct answer is A. Using sugar-free gum can help alleviate the metallic taste often experienced during chemotherapy treatments. Choices B, C, and D are incorrect. Drinking fluids at mealtime may worsen early satiety, foods higher in fat can exacerbate nausea, and raw fruits and vegetables may be harder for the body to digest and may pose a risk of infection for individuals with compromised immune systems.

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: D

Rationale: Grilled chicken breast is a high-protein, low-fiber food that is well-tolerated by clients with Crohn's disease. Crohn's disease is an inflammatory bowel disease that often requires a low-fiber diet to reduce irritation to the digestive tract. Vanilla milkshake is high in dairy and sugar content, which may trigger symptoms in some individuals with Crohn's disease. Buttered popcorn and broccoli are high in fiber, which can be difficult for individuals with Crohn's disease to digest and may exacerbate symptoms.

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.