At high altitudes, sterilization by boiling must be prolonged ...

[mrsjacobs44]

At high altitudes, sterilization by boiling must be prolonged primarily because of which of the following?
 
  a. Increased oxygen content c. Increased normal boiling point
  b. Reduced oxygen content d. Reduced normal boiling point

Question 2

Dry-heat sterilization involves a 1-hour to 2-hour exposure at approximately:
 
  a. 100 C. c. 170 C.
  b. 132 C. d. 200 C.

[akpaschal]

Answer to Question 1

ANS: D
Because water boils at a lower temperature at high altitudes, exposure time must be prolonged during this form of sterilization at high elevations.

Answer to Question 2

ANS: C
Dry heat is another effective method of heat sterilization. Its use is limited to items that are not heat-sensitive. Temperatures must be maintained between 160 C and 180 C for 1 to 2 hours for sterilization.