Which action demonstrates disinfection?

A) Washing the hands with warm water and antimicrobial liquid soap
B) Cleaning the patient's mouth with a swab soaked in chlorhexidine solution
C) Cleaning the stethoscope with isopropyl alcohol after each use with patients
D) Using an alcohol-based hand sanitizer after performing physical assessments

Disinfection eliminates almost all pathogenic organisms,with the exception of bacterial spores.Sterilization eliminates or destroys all forms of microbial life,including spores.Cleaning involves removing organic material such as blood or inorganic material such as soil from objects.Generally this involves the use of water,a detergent/disinfectant,and proper mechanical scrubbing action.Cleaning occurs before disinfection and sterilization procedures.Antiseptic procedures reduce microorganisms from the skin to reduce the risk of infection.