Are You Ready for CNA Infection Control Regulations Quiz?Share:FacebookPinterestTwitterMailWhich CDC guideline sets minimum handwashing time for CNAs?8%Next Correct Incorrect CDC’s Hand Hygiene Guideline sets minimum 20-second wash time. Which CDC guideline sets minimum handwashing time for CNAs? Hand Hygiene Guideline Standard Precautions Contact Precautions Airborne Precautions 8%