Correct Answer: C

Rationale: The correct answer is C: Decreased bowel sounds. In hypokalemia, decreased bowel sounds are common due to slowed peristalsis. Hyperactive reflexes (choice A) and increased deep tendon reflexes (choice D) are more indicative of hyperkalemia. A strong, bounding pulse (choice B) is not typically associated with hypokalemia.

Correct Answer: A

Rationale: The correct answer is A: Clean the wound and apply a hydrocolloid dressing. This step is crucial in managing a pressure ulcer as it helps protect the ulcer from infection and promotes healing by creating a moist environment conducive to tissue repair. Choice B, debriding necrotic tissue and applying antibiotics, is more suitable for managing infected pressure ulcers but not as the initial step. Choice C, applying an alginate dressing and elevating the affected area, may be part of the management but is not the initial step. Choice D, using moisture-retentive dressings and repositioning frequently, is important for prevention but not the first step in managing an existing pressure ulcer.

Correct Answer: B

Rationale: The correct answer is B: Ensure that oxygen tanks are kept upright and away from heat sources. This is the most important safety measure to prevent accidents related to home oxygen use. Storing oxygen tanks in a closet when not in use (choice A) is not recommended as they should be stored in a well-ventilated area. Allowing family members to smoke in designated areas (choice C) poses a significant fire hazard. Restricting fluid intake while using oxygen (choice D) is not a safety measure related to oxygen use.

Correct Answer: C

Rationale: When communicating with a client who has expressive aphasia, using a picture board is an effective method as it provides an alternative means of communication. Option A, speaking slowly, may not improve understanding for someone with expressive aphasia. Option B, providing written instructions, may also be challenging for individuals with this condition. Option D, writing on a whiteboard, may not be as helpful as using a picture board in facilitating communication for a client with expressive aphasia.

Correct Answer: A

Rationale: Muscle weakness is a characteristic finding in hyperkalemia. High levels of potassium can affect the normal function of muscles, leading to weakness. Nausea and increased thirst are not typically associated with hyperkalemia. Restlessness is more commonly seen in conditions such as hypoxia or anxiety, not specifically in hyperkalemia.