The destructive substances released from some bacteria when they die are known as:

When auscultating the posterior chest, you should listen:

A) only at the apices. B) only at the bases. C) down one side first, then the other. D) from side to side as you proceed down the chest.

The therapist is about to establish bilevel NPPV on a patient who has COPD and has a spontaneous respiratory rate of 14 breaths/minute. Which of the following initial ventilator settings are appropriate for this patient? I. Adjust the sensitivity setting to enable pressure triggering. II. Set an IPAP of 12 cm H2O and an EPAP of 6 cm H2O. III. Institute a backup respiratory rate of 16

breaths/minute. IV. Initiate a PPEP of 10 cm H2O. A. I, II only B. II, III only C. I, II, III only D. I, II, IV only