Final answer:
When checking in a hearing impaired patient, a medical assistant should provide written instructions and should not ignore the impairment.
Step-by-step explanation:
When checking in a patient who is hearing impaired, a medical assistant should provide written instructions as an option. This allows the patient to visually read and understand the information. Speaking loudly and slowly may not be effective if the patient has difficulty understanding spoken words. Using sign language can be helpful if the medical assistant knows sign language and the patient is proficient in it. However, not all medical assistants are trained in sign language. Lastly, ignoring the hearing impairment would be inappropriate and disrespectful to the patient's needs.