Correct Answer: C

Rationale: The correct answer is C. Abdominal rigidity in a client with a bowel obstruction could indicate peritonitis, a serious complication requiring immediate attention. Volvulus, a twisting of the intestine, can lead to bowel ischemia and necrosis. Clients with pneumonia (choice A) may need assessment and treatment for infection, but it is not as immediately life-threatening as a bowel obstruction. A client who underwent knee surgery (choice B) needing a dressing change can typically wait for assessment compared to a potential surgical emergency. Similarly, a client with diabetes requesting insulin (choice D) may require attention to maintain blood glucose levels, but it is not as urgent as a suspected bowel obstruction with possible peritonitis.

Correct Answer: A

Rationale: An increase in urine output is a positive sign that the client's hydration status is improving. It indicates that the kidneys are functioning well and that fluid therapy is effective. Increased urine output helps to eliminate excess fluid and waste products from the body. Choices B, C, and D are incorrect. Feeling more thirsty (choice B) is a sign of dehydration, not improvement. A decrease in blood pressure (choice C) and an increase in heart rate (choice D) are not typically indicative of improving fluid status during IV fluid therapy for dehydration.

Correct Answer: D

Rationale: Sudden loss of consciousness in a client with a suspected stroke is the most concerning finding as it indicates a more severe neurological event, such as brain stem involvement or hemorrhage, requiring immediate intervention. While unilateral facial droop, slurred speech, and weakness in one arm are all common signs of a stroke, sudden loss of consciousness signifies a critical condition that needs urgent attention and evaluation to prevent further complications.

Correct Answer: C

Rationale: The correct answer is C. Cool extremities and weak peripheral pulses indicate compromised circulation, possibly due to inadequate arterial blood supply. This finding requires immediate intervention to prevent further complications such as tissue damage or non-healing ulcers. Option A, decreased pain and increased redness, can be a sign of improving wound condition. Option B, increased serous drainage, may indicate a normal part of the healing process. Option D, pitting edema, is common in venous leg ulcers and may not require immediate intervention unless severe and accompanied by other concerning symptoms.

Correct Answer: B

Rationale: When a client develops diarrhea from continuous enteral tube feeding, diluting the feeding to half strength and continuing at the same rate is the appropriate intervention. This helps reduce the strength of the feeding, minimizing gastrointestinal upset while still providing necessary nutrition. Stopping the feeding abruptly (Choice A) may lead to nutritional deficits. Simply reducing the feeding rate (Choice C) may not effectively address the issue of diarrhea. Adding fiber (Choice D) could potentially worsen the diarrhea in this scenario instead of resolving it.