Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


Factors influencing disinfectant (8) Type, time exposure, nature of microbiota, pH, temp, concentration, number of microbiota, material to be disinfected
Desirable features of disinfectant (7) Cheap and available, safe for body tissues, rapid action, safe for clothes, high penetrating power, effective on most microbiota, stability
Halogens Tinsure of Iodine, Hypochlorites, Idosphore, oxidizing agents, do not act well in the presence of a lot of microbiota
Tinsure of Iodine Iodine crystals dissolved in alcohol
Hypochlorites Used in bleach NaOCl
Idosphores Used in detergents
Alcohols Lipolytic, 70% dilution is better than concentrate, isopropyl (rubbing alcohol) and ethyl (grain) alcohol
Aldehydes Reducing agents, inactivate proteins and cross links between them
Formalin 37% aqueous solution of formaldehyde by weight, 40% by volume
Glutarihyde cold of liquid sterilization
Phelolalic compounds injury to lipids
Phenol coefficient Phenol was used as base of comparison at one time
Creysol Lysol, surface disinfectant
Hexachlorophene Antispetic
Quaternary ammominum compounds Surface tension reducers, expose microbes so they can be washed away with water. Zephrian (benzelonium chloride)