Correct Answer: B

Rationale: Elevated BMI is a significant risk factor for colorectal cancer. Excess body weight, especially around the waist, increases the risk of developing this type of cancer. Family history of asthma (Choice A) is not directly related to colorectal cancer risk. History of travel (Choice C) and high cholesterol (Choice D) are also not established risk factors for colorectal cancer.

Correct Answer: B

Rationale: The correct answer is B - 'Identify the underlying causative condition.' When a client is experiencing delirium, it is crucial to determine the root cause of this acute change in mental status. This can involve a thorough assessment to identify any medical conditions, medications, infections, or environmental factors that may be contributing to the delirium. By pinpointing the underlying cause, appropriate interventions can be implemented to address the specific issue. Choices A, C, and D are incorrect because controlling behavioral symptoms with low-dose psychotropics, increasing environmental stimulation, and administering antipsychotic medication do not target the primary need of identifying and addressing the causative condition of delirium.

Correct Answer: A

Rationale: The correct answer is A. Systolic heart failure is characterized by reduced ejection fraction, meaning the heart is not pumping effectively. Diastolic heart failure, on the other hand, is characterized by preserved ejection fraction, indicating that the heart has difficulty relaxing and filling properly. Choices B, C, and D are incorrect because they do not accurately describe the key differences between systolic and diastolic heart failure.

Correct Answer: D

Rationale: When a patient is experiencing a seizure, the immediate priority is to ensure their safety by placing them in a side-lying position. This helps prevent aspiration in case of vomiting and maintains an open airway. Administering anticonvulsant medications is not within the scope of a healthcare provider's immediate response during a seizure. Applying restraints can potentially harm the patient by restricting movement and causing injury. Monitoring for post-ictal confusion is important after the seizure has ended, but the primary concern during the seizure is ensuring the patient's safety.

Correct Answer: D

Rationale: After cataract surgery, it is essential to avoid lying on the affected side to reduce pressure and promote healing. Sleeping on the side of the affected eye (Choice C) may increase pressure on the eye, leading to complications. While using eye drops to soothe dryness (Choice A) is generally recommended postoperatively, it is not as crucial as avoiding pressure on the eye. Rubbing the eye (Choice B) should be avoided to prevent irritation and potential damage, but it is not as critical as avoiding pressure on the affected eye.