Dry Heat Sterilization

Waste sharps Repeat from May 11

Ans. is ‘b’ i.e., Hot air oven

Ans. is ‘a’ i.e., Hot air oven

Ans. is ‘None’

Ans. is ‘a’ i.e., Incineration

Ans. is ‘a’ i.e., Incineration 

o Human anatomical waste (human tissues organs, body parts), e.g. placenta, are disposed by incineration or deep burial.

Ans. is ‘a’ i.e., Incineration 

Animal wastes (category 2) are disposed by incineration or Deep burial.

Ans. is ‘a’ i.e., Double-chamber 

o Three basic kinds of incineration technology are of interest for treatment of healh care wastes :

i)      Double-chamber pyrolytic incinerators which may be especially designed to burn infectious health care waste.

ii)     Single-chamber furnaces with static grate, which should be used only if pyrolytic incinerators are not affordable.

iii)   Rotary kilns operating at high temperatures, capable of causing decomposition of genotoxic substances and heat-resistant chemicals.

Ans. C: Hot air oven

A rapid method heats air to 190 °C (374 °F) for 6 minutes for unwrapped objects and 12 minutes for wrapped objects. Dry heat has the advantage that it can be used on powders and other heat-stable items that are adversely affected by steam.

Ans. B: Anatomy waste

Liquid waste is treated with disinfectants/reagents and neutralized before flushing into the sewer.

Sharp waste can be disposed by deep burial if land is available

Ans. is ‘b’ i.e., 170° C

Ans. is ‘a’ i.e., 160°C for 1 hour

Ans. is ‘b’ i.e., Glassware

Ans. is ‘c’ i.e., Incineration

Cytotoxic drugs are category No. 5 wastes which are destroyed by incineration and disposed by secured landfills.

Ans. is `a’ i.e., Hot air oven

Hot air oven

• Hot air oven are electrical devices used in sterilization. 
• The oven uses dry heat to sterilize articles.

Hot air oven is used for

• Glass ware             
• Swabs                      
• Liquid paraffin   
• Fat and grease
• All glass syringe         
• Forceps, scissors, scalpels      
• Dusting powder