Final answer:
When documenting Sarah's blister in her medical chart, include the location, cause, appearance, symptoms, and treatment.
Step-by-step explanation:
When documenting Sarah's blister in her medical chart, it is important to provide accurate and detailed information. The documentation should include the location of the blister on her arm, the cause of the blister (contact with a hot iron), and the appearance of the blister (filled with clear fluid). Additionally, it is important to note any symptoms such as pain, itching, or redness, as well as any treatment provided.