1. Which would achieve sterilization? A. soaking a surgical instrument in glutar

Question

1. Which would achieve sterilization?
       A. soaking a surgical instrument in glutaraldehyde for 6 hours
        B. soak in 100% alcohol for 6 hours
        C. soak in 80% alcohol for 15 hours
        D. soaking a surgical instrument in glutaraldehyde for 15 hours

2. Which is a good antiseptic?
        A. chlorhexidine
        B. ethylene oxide
        C. 2% glutaraldehyde
        D. 60% alcohol

3. Which would be an effective means of sterilizing a heat sensitive-moisture sensitive object that is easily corroded?
A.iodine solution
        B. ethylene oxide gas
        C. peracetic acid solutions
        D. glutaraldehyde solution

4. Which has to be considered when using chlorine to treat water?
        A. Chlorine is inactivated by organic matter
        B. Some protozoan cysts may survive chlorination
        C. Dilutions of chlorine have to be made fresh because they have a short shelf life
        D. All of the above has to be considered

5. Betadine is a good antiseptic, it has low toxicity, and reliably destroys bacterial endospores
        A. True
        B. False

6. Hydrogen peroxide is not an effective antiseptic, because human blood and skin has catalases that destroy hydrogen peroxide
      A. True
     B. False

7. Which can be a tuberculocidal antimicrobial agent?
        A. high concentration phenolic solutio
        B. glutaraldehyde solutions
        C.peracetic acid
        D. all are tuberculocida

8. Which is a low level disinfectant that can also be used as antiseptics?
         A. quaternary ammonium compounds
         B. hydrogen peroxide in the vapor phase
        C. peracetic acid
        D. chlorine solutions

Explanation / Answer

1.

In labs glyceraldehydes is used to sterilize the surgical instruments.

Soaking a surgical instrument in glyceraldehydes for 15 hours.

Option c is the answer.

2.

Chlorhexidine is a good antiseptic, it is used as surgical hand scrub.

Option a is the answer.

3.

Ethylene oxide gas is an effective means of sterilizing a heat sensitive moisture sensitive object that is easily corroded.

Option b is the correct answer.

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