Fire extinguishers designed for protection of cooking appliances that use vegetable oil must be labeled what class of fire?

It is important to maintain the correct order of draw to ________

a. ensure the correct amount of blood is drawn b. maintain the drawn blood at the correct temperature c. ensure that the tubes are labeled with the name of the correct patient d. prevent contamination of a sample with chemicals from another tube

Which of the following ventilators is unaffected by the use of heliox, whatever the FIO2?

a. Dräger E-4 b. Servo 300 c. Hamilton Galileo d. Puritan Bennett 840