What is the limit variable during Bi-Level ventilation?

________ A gram-negative bacterium has the violet color of the counterstain used in Gram's method of staining microorganisms

Indicate whether the statement is true or false

Which of the following are characteristics of a ventilator that function as a true volume control-ler?

1. Its pressure waveform changes with changes in lung mechanics. 2. It measures and uses volume to control the volume waveform. 3. Its volume waveform stays constant with changes in lung mechanics. a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3