Q. An adult man has a tracheostomy tube in place. which of the following actions is appropriate for the nurse to take when suctioning the tracheostomy?

(a)Use a sterile tube each time and suction for 20 seconds
(b) use sterile technique and turn the suction off the catheter is introduced
(c)Use Clean technique and suction for 15 seconds
(d) discard the catheter at the end of every shift