A nurse is planning care for 2-month-old infant following a surgical procedure. Which of the following pain rating scales should the nurse plan to use to determine the infant's level of pain?

A. A weight loss of 10% or more in infants within a short period is indicative of severe dehydration. The significant weight loss from 5 kg to 4.3 kg confirms this diagnosis.

B. The risk for fluid volume deficit would be noted if there were signs of potential dehydration, but in this case, the infant has already lost a significant amount of weight, confirming severe dehydration.

C. Failure to thrive is a diagnosis related to insufficient weight gain over time, rather than acute weight loss due to dehydration.

D. Malabsorption syndrome could contribute to chronic weight loss, but the acute loss in this case is more likely due to dehydration from diarrhea.

Given the client’s symptoms (right lower quadrant pain, nausea, fever) and elevated WBC count indicating a possible infection, the provider may prescribe IV antibiotics. This is especially important if there is a concern for appendicitis or another bacterial infection.

B. The client may need to be kept NPO (nil per oral) in preparation for possible surgery or diagnostic imaging to prevent complications such as aspiration if surgery is needed.

C. Promethazine is an antiemetic, but the priority in this case would be addressing the underlying condition (likely appendicitis) rather than just managing symptoms. However, it might be used later for symptomatic relief.

D. Acetaminophen may be used for pain management, but with a suspected surgical condition, addressing the root cause is more critical. Pain management will likely be considered after the primary issue is addressed.

E. With symptoms and lab results suggestive of appendicitis, the client may require surgery. Informed consent is necessary before any surgical procedure.

F. An abdominal ultrasound is commonly used to assess for appendicitis in children and can help confirm the diagnosis by visualizing the appendix and assessing for inflammation.

G. Enemas are not indicated in this case and could be harmful. They are not recommended for abdominal pain with a possible surgical condition like appendicitis.