Final answer:
The correct answer for Twumwaa's procedure is to initiate suction as the catheter is being withdrawn, and to use a new sterile catheter for each suctioning attempt.
Step-by-step explanation:
When Twumwaa is suctioning a patient who has an endotracheal tube, the correct procedure to follow, among the options provided, is to initiate suction as the catheter is being withdrawn (B). This method is safe and effective in clearing the airway without causing undue trauma. It is also important to use a sterile catheter for each suctioning procedure to prevent infection. Therefore, Twumwaa must use a new sterile catheter with each suction attempt (D).
It is not advisable to wait until the cough reflex is stimulated (A), as this may cause unnecessary discomfort or distress to the patient. Moreover, there is no need to remove the inner cannula before inserting the suction catheter (C), as the suctioning is done through the endotracheal tube which is already in place.