Correct Answer: B

Rationale: The correct answer is B because the surgeon should address the client's doubts before surgery. Informed consent requires that the client fully understands the procedure. Choice A is incorrect because reassuring the client of the surgeon's skill does not address the client's doubts about the need for surgery. Choice C is incorrect because telling the client surgery is necessary may not address their concerns and could violate the principle of autonomy. Choice D is incorrect as the immediate concern is addressing the client's doubts before surgery, not necessarily seeking a second opinion.

Correct Answer: B

Rationale: The correct answer is B: High-fat diet, smoking, alcohol consumption. These are modifiable risk factors for colorectal cancer as individuals can make lifestyle changes to reduce their risk. Age and gender (choice A) are non-modifiable risk factors. Ethnicity and race (choice C) can influence the risk of colorectal cancer but are not modifiable factors. Exposure to radiation (choice D) is not a common modifiable risk factor for colorectal cancer.

Correct Answer: B

Rationale: The correct instruction when using a metered-dose inhaler (MDI) is to shake the inhaler vigorously before use. Shaking the inhaler ensures proper mixing of the medication, which is crucial for effective delivery of the medication into the lungs. Inhaling for a specific duration, holding the inhaler at a certain distance from the mouth, or holding the breath after inhalation are not as critical as ensuring proper mixing of the medication by shaking the inhaler.

Correct Answer: C

Rationale: The correct answer is to auscultate before palpation when performing an abdominal assessment. This sequence is crucial to prevent altering bowel sounds. Starting with palpation (Choice A) can lead to false interpretations of bowel sounds due to stimulation of the intestines. Inspecting the abdomen after palpation (Choice B) can also potentially alter the assessment findings. Starting with percussion (Choice D) is not recommended as it should come after auscultation to further assess underlying structures.

Correct Answer: A

Rationale: Bladder distention is the correct answer as it indicates that the catheter is not draining properly, which is a sign of occlusion. Frequent urination, hematuria, and burning sensation are not indicative of a catheter occlusion. Frequent urination may suggest a bladder that is not fully emptying, hematuria indicates blood in the urine, and a burning sensation can be a sign of a urinary tract infection, none of which directly relate to a catheter occlusion.