Final answer:
Most college instructors will likely ask for an excuse note from Sandy upon her return and may provide a make-up test if the absence is verified as legitimate.
Step-by-step explanation:
If Sandy is absent on a test day due to a medical emergency, most college instructors will likely ask Sandy for an excuse note when she returns. Policies may vary among institutions and instructors, but in general, providing a make-up test or an alternative arrangement is a common practice if the student presents a legitimate excuse. This accommodation ensures that a student who had a valid reason for missing the test has the opportunity to complete it without being penalized academically.
It's unlikely that a college instructor would wait to see if Sandy visits during office hours without any prior communication or call Sandy's parents, as college students are typically considered adults responsible for managing their academic affairs. Colleges generally have their own attendance policies and it's expected that students follow these protocols in cases of absences.