Final answer:
Clean skin and intact lips do not need to be reported, but a bruise on the arm and food between the teeth should be reported to the nurse.
Step-by-step explanation:
In order to know which conditions need to be reported to the nurse, we need to understand what may potentially pose a health risk. Clean skin and moist and intact lips are generally not concerning. However, a bruise on the arm can indicate an injury that may require medical attention. Similarly, food between the teeth can lead to oral health problems, and thus should be reported to the nurse.