Correct Answer: B

Rationale: Hypervigilance is a common manifestation of PTSD characterized by heightened alertness and fear of danger. This heightened state of awareness can lead to irritability, difficulty concentrating, and sleep disturbances. Choices A, C, and D are incorrect. Hyperactivity is not typically associated with PTSD; restlessness may be present but is not the primary manifestation, and avoidance of social situations is more commonly seen in conditions like social anxiety disorder rather than PTSD.

Correct Answer: A

Rationale: The correct answer is A. New confusion in a client with pneumonia could indicate hypoxia or a worsening condition, requiring immediate attention. Option B, a client with diabetes having low blood sugar overnight, is a concerning condition but not as urgent as potential hypoxia. Option C, a client with a leg fracture needing pain medication, and option D, a client with decreased urinary output, are important but do not take precedence over addressing a potentially critical respiratory issue.

Correct Answer: B

Rationale: The best intervention for managing dehydration is to monitor fluid and electrolyte levels. This approach allows healthcare providers to assess the severity of dehydration, determine appropriate fluid replacement therapy, and prevent complications. Administering antiemetics (Choice A) may help with nausea but does not address the underlying issue of dehydration. Encouraging the client to drink more fluids (Choice C) may be appropriate for mild dehydration but can be inadequate for moderate to severe cases. Administering intravenous fluids (Choice D) is crucial for severe dehydration or cases where oral rehydration is ineffective, but monitoring fluid and electrolyte levels should precede this intervention.

Correct Answer: C

Rationale: When signs of phlebitis are observed in a client receiving IV fluids, the appropriate action is to apply a warm compress. This helps to reduce discomfort and swelling at the site of the IV insertion. Applying a cold compress may not be as effective in this case and could potentially worsen the condition. While notifying the physician is important, providing immediate comfort to the client through a warm compress is the initial recommended intervention. Administering anti-inflammatory medication should only be done under the direction of a healthcare provider after assessment and evaluation of the client's condition.

Correct Answer: A

Rationale: The correct answer is A: Increased respiratory rate and use of accessory muscles are key signs of respiratory distress. When a person is experiencing respiratory distress, their respiratory rate typically increases as the body tries to compensate for the inadequate oxygenation. Additionally, the use of accessory muscles indicates that the person is working harder to breathe. Choices B, C, and D are incorrect because they do not accurately represent the key signs of respiratory distress. A decreased respiratory rate, cyanosis, altered mental status, and bradycardia are not typical signs of respiratory distress.