| | Healthcare Industry | Urgent Care What does the medical abbreviation qac mean? The medical abbreviation qac means "every morning." It is used to instruct patients to take a medication or perform a medical procedure every morning. Urgent Care - Related Articles Menopause & Heartburn Weight Loss the Biblical Way How to Shrink Lungs How long does one usually have to wait at a office? What Is a Nutrient Agar Plate? Antidepressant seroquel can it cause slight bleeding of the stomach? What does white matter change on a brain scan mean i have ms type symptoms?