Your admissions interviewers are interested in what work experience you've taken part in, if any, and what you learned from it. Personal experiences with caregiving are worth offering here as well. They ultimately want to know whether you've put in the hours to understand medicine and a caregiver's role.
As they state on their site under their admissions prerequisites, "Competitive applicants are recommended (but not required) to have a minimum of six months full-time healthcare employment, or 1,000 total hours of hands-on patient care experience and/or community service in a healthcare setting. Preference is given to applicants having experience that requires a period of training and results in direct (hands-on) patient care.
Examples include: EMT, Paramedic, Registered Nurse, Medical Assistant, CNA, ER Tech, Physical Therapy Aide, Medical Scribe, Personal Care Provider. Hours associated with the completion of academic degrees, certifications, or training will not count. Evidence of community service (i.e., healthcare for under-served populations, medical mission trips) is highly valued."