50 Questions
What is the purpose of sterilization?
To eliminate all forms of microbial life including spores
What is the difference between disinfection and sterilization?
Disinfection eliminates vegetative organisms without eliminating spores, while sterilization eliminates all forms of microbial life including spores
Which method is NOT suitable for sterilizing powders and some plastics?
Dry heat at 160°C for 2 hrs
What is the primary purpose of cleaning?
To physically remove organic material or soil from objects
Which method is very reliable and efficient for sterilizing instruments and glassware?
Moist Heat under Pressure
What is the purpose of disinfection?
To eliminate vegetative organisms without eliminating spores
Which method uses moist heat under pressure for sterilization?
Autoclaving at 121°C for 15 mins
What does handwashing contribute to in infection control practices?
Reduction in likelihood of infections being transmitted from a source to a susceptible individual
What is the main goal of using protective clothing in infection control practices?
Prevention or reduction of infections being transmitted from a source to a susceptible individual
'Management of Linen' in infection control practices primarily involves:
Removing organic material or soil from linen
What is the recommended temperature range for the Central Sterile Services Department (CSSD) according to the text?
18oC - 22oC
Which humidity range is suggested for the Central Sterile Services Department (CSSD) ?
35% - 70%
In which direction should the airflow be directed in the Central Sterile Services Department (CSSD) according to the text?
From clean to relatively soiled areas
What should be done with items before sterilization, according to the rules of sterilization ?
Thoroughly cleaned
Which method of monitoring the sterilization process is considered most important as per the text?
Biological monitoring
What type of monitoring involves using color or physical change indicators to monitor exposure to sterilizing agents/conditions,?
Chemical monitoring
Which organism is recommended for biological monitoring of sterilizers as per the text?
B.stearothermophilus
What is NOT considered suitable wrapping material for the sterilization process based on the text?
$300$-thread-count muslin
At what temperature does boiling occur, as mentioned in the text?
$100^{ ext{o}}$C
What types of microorganisms can low level disinfectants kill?
Vegetative bacteria and enveloped viruses
Which disinfectants are capable of killing everything except spores?
20% gluteraldehyde
What is the effect of intermediate level disinfectants on non-enveloped (non-lipid) viruses at normal contact times?
Limited virucidal activity
Which type of microorganisms are NOT affected by low level disinfectants at normal contact times?
Tubercle bacilli
Which type of microorganisms are NOT affected by intermediate level disinfectants at normal contact times?
Spores
What factors can affect the effectiveness of disinfectants?
Concentration, pH of the medium, and surface to be disinfected
Which type of item has the minimum standard requirement of sterilization according to the text?
Critical items
What procedure is preferred but not absolutely essential for semi-critical items?
High-level disinfection
Which type of items have a low risk of transmitting infections and do not ordinarily touch the patient or touch only intact skin?
Non-critical items
Which type of microorganisms can low level disinfectants typically kill at normal contact times?
Vegetative microbes and some non-lipid viruses
What is the primary categorization for items that will be introduced directly into the blood stream or other normally sterile areas?
Critical items
Which method is recommended for destroying vegetative microbes, fungal spores, tubercle bacilli, and small non-lipid viruses on semi-critical items?
High-level disinfection procedure
What risk of causing infection is associated with semi-critical items?
Intermediate risk
What is the nature of the contact that non-critical items have with patients?
Touching intact skin or not touching the patient at all
Which type of disinfectant is mentioned in the text as a strong oxidizing agent and a high level disinfectant?
Peracetic Acid
What action is explicitly advised against in relation to disinfectant containers?
Refilling between each use
What should be done with open containers of disinfectants in a hospital environment?
Keep them tightly closed
Which type of disinfectant is suggested as an environmentally friendly option with a broad spectrum of action, suitable for semi-critical items?
Peroxygen based compounds
What is explicitly recommended to be checked before disinfection of articles?
Expiry date of the solution
Which disinfectant mentioned in the text is a combination of chlorine, alcohol, and glycerine?
Hibisol
What should one do with empty disinfectant containers?
Return them to the pharmacy
What is advised in relation to the use of disinfectants for sterilizing instruments or equipment?
Strictly following the disinfection policy
Which type of disinfectant is described in the text as containing chloroxynelol and being clear soluble?
Phenolics
What should NOT be done with disinfectant containers between each use according to the text?
Topping up with new solution
What is the recommended disinfectant for staff hand disinfection?
0.5% chlorhexidine+70% isopropyl alcohol
Which area requires routine preoperative skin disinfection?
Injection site
What is the role of the pharmacy in ensuring cleanliness as per the text?
All of the above
Which method is NOT recommended for disinfecting theatres based on the text?
Patient antiseptic baths or showers before surgery
What is required for the proper use of disinfectants according to the text?
Both a and b
Which activity is NOT considered a myth about disinfection in operating theatres as per the text?
Disinfecting theatre floors
What is the primary requirement for ensuring the availability of a proper Disinfection Policy as per the text?
Multidisciplinary approach
Test your knowledge of the basis of infection control practices, including principles, handwashing, protective clothing, cleaning, disinfection, sterilization, waste management, and more.
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