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13 Cards in this Set
- Front
- Back
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If disinfectants are carried over into microbial cultures could the results be affected? |
Yes because any chemical added to a culture could change the growth of the culture. Many disinfectants kill a wide range of microbes |
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Define disinfection. How does it differ from antisepsis? |
Destruction of pathogenic microorganism. It reduces the number of microorganisms |
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Define bactericidal |
Kills bacteria |
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Define bacteriostatic |
Inhibits growth of bacteria |
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Define virucidal |
Kills viruses |
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Fungistatic |
Inhibits growth of fungi |
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Why are control cultures necessary in evaluating disinfectants? |
They prove whether or not the disinfectants killed the bacteria |
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What factors can influence the activity of a disinfectant? |
Time, temperature, pH, and concentration required to kill microorganisms |
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Why do microorganisms differ in their response to disinfectants? |
They have different levels of resistance |
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How can bacteriostatic and bactericidal disinfectants be distinguished? |
With a bacteriostatic disinfectant the bacteria are not killed therefore there is still bacteria |
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What is an iodophor? It's value? |
A disinfectant that contains iodine in combination with a surfactant. |
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Why are bacterial endospores a problem in a hospital environment? |
Cause illness to those who are already sick and are hard to kill |
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Importance of disinfection and antisepsis in patient care? |
Antisepsis is important in handwashing and disinfection is important to kill microorganisms on objects |
