Correct Answer: D

Rationale: The correct answer is D: Chronic ache or pain. Persistent cough and chronic ache or pain are both common warning signs of cancer. Chronic pain can be a symptom of various types of cancer, signaling the presence of a tumor or cancerous growth. It is important for the client to seek medical evaluation to rule out any underlying serious condition. A: Persistent nausea is not typically considered a common warning sign of cancer. While it can be a symptom in certain types of cancer or due to treatment side effects, it is not as prominent as chronic ache or pain. B: Indigestion is a common symptom that can be caused by various non-cancer-related issues such as dietary habits, stress, or gastrointestinal disorders. It is not typically considered a direct warning sign of cancer. C: Rash is generally not a common warning sign of cancer. Rashes are more commonly associated with skin conditions, allergic reactions, or infections rather than being an indicator of cancer.

Correct Answer: B

Rationale: The correct answer is B because right-sided weakness is typically associated with damage or impairment in the left lobe of the brain. The brain controls the opposite side of the body, so weakness on the right side indicates left brain involvement. This is known as contralateral control. The other choices are incorrect because expressive aphasia is associated with left brain damage, problems in judging distance and proprioception are related to parietal lobe damage, and orientation to time and space is more related to frontal lobe damage. Therefore, the most accurate analysis by the nurse would be to consider the affected lobe as the right lobe in this case.

Correct Answer: D

Rationale: The correct answer is D: Sigmoidoscopy. Sigmoidoscopy is a direct visualization procedure that allows for examination of the lower part of the colon and rectum, where colorectal cancer commonly occurs. This procedure can help identify any abnormal growths or polyps that may indicate cancer. Stool hematest (A) detects blood in stool but does not confirm colorectal cancer. Abdominal CT (B) provides imaging of the abdomen but may not definitively diagnose colorectal cancer. CEA scan (C) measures a tumor marker associated with colorectal cancer but is not a definitive diagnostic test. Thus, sigmoidoscopy is the most appropriate diagnostic study for confirming colorectal cancer.

Correct Answer: D

Rationale: The correct answer is D: Malnutrition. Malnutrition weakens the immune system, making individuals more susceptible to contracting tuberculosis. A well-nourished individual has a stronger immune response to fight off TB bacteria. Exposure to toxic gases (A), congenital abnormalities (B), and obstruction by tumor (C) do not directly predispose a client to TB. Malnutrition is the key factor as it impairs the immune system's ability to combat the TB bacteria effectively.

Correct Answer: C

Rationale: The correct answer is C. Washing feet in hot water is not part of diabetic foot care as it can lead to burns or skin damage. A: Properly fitting shoes help prevent injuries. B: Trimming toenails straight reduces risk of ingrown nails. D: Wearing shoes on hot surfaces protects feet from burns or injuries. Overall, C is incorrect due to its potential harm to the client's feet.