A nurse is caring for a school-age child who has acute otitis media and a new prescription for clindamycin. Which of the following findings indicates the child is experiencing an allergic reaction to the medication?

Choice A rationale:
Urine osmolality 500 mOsm/kg. Urine osmolality is a measure of urine concentration and is not a reliable indicator of infection. It reflects the kidney's ability to concentrate urine and can vary based on hydration status and other factors. An elevated urine osmolality could suggest dehydration, not necessarily infection.
Choice B rationale:
WBC 17,500/mm3. This is the correct choice. An elevated white blood cell count (WBC) is a hallmark sign of infection. The body's immune response to an infection often includes an increase in WBC count, particularly the neutrophil count. This elevation is known as leukocytosis and is a red flag for infection.
Choice C rationale:
BUN 12 mg/dL. Blood Urea Nitrogen (BUN) measures kidney function and hydration status. While an elevated BUN can indicate dehydration, it is not a specific marker for infection. BUN levels can be influenced by various factors, including diet and renal function.
Choice D rationale:
Urine specific gravity 1.014. Urine-specific gravity reflects the concentration of solutes in urine and the kidney's ability to concentrate or dilute urine. While changes in urine specific gravity can indicate dehydration or overhydration, it is not a direct indicator of infection. An infection is better detected through changes in WBC count and other clinical signs.

Choice A rationale:
Pain following range-of-motion exercises is a significant finding that should be reported to the provider. It could indicate the possibility of complications, such as further injury or impaired healing. Adolescents with fractured bones are often encouraged to perform range-of-motion exercises to prevent stiffness and promote circulation. However, increased pain during or after these exercises could indicate problems like muscle strain or improper alignment of the fracture, which need to be addressed promptly.
Choice B rationale:
Pruritus (itching) under the cast is common and can be expected due to the accumulation of dead skin cells and sweat. While it can be uncomfortable for the client, it's not an urgent concern that requires immediate reporting to the provider. Strategies to alleviate itching, such as using a cool blow dryer under the cast, can be taught to the client.
Choice C rationale:
The presence of swelling while the extremity is dependent is a normal response to gravity and is not an alarming finding. Swelling when the extremity is dependent is expected, especially within the initial stages of fracture healing. It suggests that the blood supply is reaching the area for healing purposes. Elevation and rest can help reduce the swelling.
Choice D rationale:
Coolness of the toes could be due to reduced blood flow, but this finding alone may not be an immediate concern. It's essential to consider the client's overall circulation, capillary refill, and presence of pulses. If other signs of impaired circulation, such as pallor or delayed capillary refill, are present along with coolness, it might indicate compromised vascular supply. However, based on the information provided, this choice is not as urgent as reporting pain following range-of-motion exercises.