Which one of the following items is appropriately sterilized in the HOT AIR OVEN?
- A Rubber gloves
- B Oily preparations and glass syringes ✓
- C Surgical dressings
- D Heat-labile culture media
Correct answer: B. Oily preparations and glass syringes
Explanation
Dry heat penetrates poorly but does not corrode or wet its load, so the hot air oven at 160 degrees B for 2 hours suits glassware, metal instruments, oils, greases, powders and glycerol containing preparations that steam cannot penetrate. Rubber and dressings are damaged by prolonged dry heat and are autoclaved instead, while heat-labile media require membrane filtration.
Reference: Ananthanarayan and Paniker's Textbook of Microbiology, 11th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.