A 14-year-old boy has a head injury with laceration of his scalp over his ear.

(A) This change in blood pressure may not be significant and does not indicate a widening pulse pressure, a late sign of increased ICP. It is important to continue to monitor for change in blood pressure. (B) Acetaminophen may be ineffective in relieving headache after head injury. Stronger analgesics are contraindicated because they mask neurological signs and may depress the CNS. (C) Pulse rates between 68 bpm and 76 bpm are within normal limits for a 14-year-old child. It is important to monitor for a consistent drop in pulse rate, which is a late sign of increasing ICP. (D) An elevated temperature is abnormal and requires further assessment and medical intervention. The temperature may be unrelated to the head injury, but CNS infection is serious and difficult to control.