Will MSU revoke my sister's acceptance?

<p>My sister was offered admission to Michigan State University's college of engineering (She's an international student BTW). Thing is, she messed up senior year. She passed in all of her core subjects (Physics, Chem and Statistics) except Math. This was the first time she ever failed a class (ie. got an 'F' in American terms). Will this be enough to revoke her acceptance? (She immediately contacted her admissions counselor, and she's awaiting their reply)...She's really stressed out, so it would be really great if someone could assure her. Thank you so much :)</p>