A student is practicing suctioning a tracheostomy in the skills laboratory. What action by the student demonstrates that more teaching is needed?
Correct Answer: A
Rationale: The correct answer is A. When suctioning a tracheostomy, the student should not apply suction while withdrawing the catheter to prevent mucosal damage. The correct technique involves inserting the catheter without applying suction, then withdrawing it while applying suction. This helps to clear secretions effectively without causing trauma. Choices B, C, and D are incorrect. Preoxygenating the client is a recommended practice to prevent hypoxemia during suctioning. Suctioning up to three times if necessary and suctioning for 10-15 seconds each time are appropriate techniques to clear secretions effectively without causing harm.