Correct Answer: D

Rationale: The correct answer is D: Potential risk of foodborne illness. Patients undergoing chemotherapy have compromised immune systems, making them more susceptible to foodborne illnesses. Chemotherapy can reduce the count of white blood cells, which impairs the body's ability to fight off infections from bacteria or other pathogens that might be present in food. Therefore, the prevention of foodborne illnesses is a critical concern for these patients. Choices A, B, and C, while they represent valid concerns for food safety in general, are not the primary concern for patients undergoing chemotherapy. These patients are at a heightened risk of experiencing severe complications from foodborne illnesses, making it a more significant concern than potential food allergies, food-drug interactions, or pesticide residues.

Correct Answer: C

Rationale: After a lobectomy, a chest tube is typically inserted to drain fluids and blood that may have accumulated post-operatively. This tube helps to prevent complications, such as infections or pneumonia, and aids in patient recovery. While a chest tube may aid in preventing a mediastinal shift (Choice A), promoting chest expansion of the remaining lung (Choice B), and removing air in the lungs to promote lung expansion (Choice D), these are not the primary reasons for its use after a lobectomy. Therefore, Choices A, B, and D are incorrect.

Correct Answer: A

Rationale: The correct answer is A: 'It produces an anesthetic effect.' Hot compresses can help alleviate pain by producing an anesthetic effect, which numbs the area. Choice B is incorrect because a hot compress does not directly increase nutrition in the blood to promote wound healing. Choice C is also incorrect because a hot compress primarily aids in pain relief rather than increasing oxygenation to the tissues for enhanced healing. Choice D is incorrect because hot compresses typically lead to vasodilation, not vasoconstriction, which aids in promoting blood flow rather than preventing infection. Safe and effective patient care relies on actions based on established nursing protocols that consider both the immediate and long-term needs of the patient.

Correct Answer: D

Rationale: The correct answer is D. A medical record becomes a potential issue for a doctor or a nurse when it is inaccurate, incomplete, or inadequate. This is because a medical record is a key tool for healthcare professionals to track a patient's history, treatment, and progress. If the record is not accurate or complete, it can lead to misdiagnosis, incorrect treatment, or other potential problems in patient care. While missing records (Choice C) could be a problem, they do not directly implicate the doctor or nurse in the same way that inaccurate or inadequate records do. An extensive record (Choice A) or a record being subpoenaed in court (Choice B) are not inherently problematic for healthcare professionals and do not necessarily reflect negatively on their work.

Correct Answer: C

Rationale: The correct answer is C, frequent urination. As people age, they may experience physiological changes that can lead to an increased frequency of urination. This is due to a decrease in bladder capacity and increased bladder irritability, which are normal age-related changes. On the contrary, the sense of taste (Choice A) and appetite (Choice B) often decrease with age, not increase. As for Choice D, the lens of the eye actually thickens with age, not thins, leading to conditions like presbyopia. Therefore, Choices A, B, and D are incorrect.