When testing available water supply, enough hydrants should be opened to drop the static pressure by at least ___ percent

When using a bulb syringe device to assist in verification of proper endotracheal tube placement, all of the following are true except

(A) if the bulb syringe easily inflates, the endotracheal tube is correctly placed in the trachea. (B) if the bulb syringe does not inflate, the endotracheal tube is placed in the esophagus. (C) the cuff on the endotracheal tube must be inflated prior to using a bulb syringe device. (D) the cuff on the endotracheal tube should be inflated prior to using a bulb syringe device.

Which of the following food groups are sources of vitamin B12?

A) Cheese, peanuts, potato, lettuce B) Orange juice, milk, bread, beans C) Apples, pears, rice, corn D) Fish, chicken, egg, beef