Correct Answer: B

Rationale: Checking the patient's weight daily is the most reliable indicator of fluid status because weight changes can directly reflect fluid retention or loss. Monitoring vital signs (Choice A) can provide some information but is not as specific as weight changes. Measuring intake and output (Choice C) is crucial but may not always accurately reflect fluid balance. Monitoring urine color (Choice D) can give some insights into hydration levels, but it is not as reliable as daily weight checks for assessing overall fluid status.

Correct Answer: B

Rationale: The correct answer is B: Injury to the nerves. Resting the underside of the arm on the crutch pad can injure the nerves. Choice A, an abnormal stance, is not directly related to nerve injury while using crutches. Choice C, a fall and further injury, is a general risk associated with improper crutch use but does not specifically address nerve injury. Choice D, skin breakdown, is a concern related to pressure ulcers but not the primary focus when discussing injury prevention related to crutch use.

Correct Answer: B

Rationale: When a nurse observes a colleague behaving strangely, the best course of action is to report the behavior to the supervisor. Unusual behavior by a healthcare professional could compromise patient safety and should be addressed promptly. Ignoring the behavior (Choice A) could potentially lead to negative outcomes for patients. Asking the colleague directly (Choice C) may not be appropriate if the behavior poses a risk. Discussing the behavior with other colleagues (Choice D) may not directly address the issue and could lead to gossip rather than a resolution.

Correct Answer: C

Rationale: The correct first action for the nurse to take when a patient has difficulty ambulating after surgery is to call for assistance with ambulation. This is essential to ensure the safety of the patient and prevent any potential falls or injuries. Encouraging deep breathing exercises (Choice A) may be beneficial but should not be the first priority when the patient is having difficulty walking. Assisting the patient in ambulating a short distance (Choice B) may put both the patient and the nurse at risk if the patient is struggling. Assessing the patient's pain level before ambulation (Choice D) is important but should come after ensuring that the patient can safely ambulate with assistance.

Correct Answer: B

Rationale: The correct answer is to monitor the patient's daily weight. In heart failure, sudden weight gain indicates fluid retention, which can worsen the condition. Monitoring daily weight helps in early detection of fluid accumulation, allowing timely intervention. Restricting fluid intake (choice A) may be necessary but is not the priority at this point. Administering diuretics (choice C) should be done based on healthcare provider orders, not the nurse's independent decision. Increasing salt intake (choice D) is contraindicated in heart failure as it can exacerbate fluid retention.