11. A nurse is caring for a client who has a tracheostomy and requires suctioning. Identify the sequence of steps the nurse should follow after applying sterile gloves. (Move the steps into the box, placing them in the selected order of performance. Use all the steps.)

A. Flush the tubing with 30 mL of water every 4 hr. Flushing the tube regularly helps maintain patency, prevent clogging, and ensure that the feeding is delivered effectively. This is a standard practice in managing enteral feeding systems.
B. Check for gastric residual every 12 hr. Gastric residuals should typically be checked every 4 to 6 hours, or per facility protocol, especially in clients at risk for aspiration. Waiting 12 hours is too long and may delay identifying feeding intolerance.
C. Place enough formula in the container to last 18 hr. Open systems should have fresh formula added every 4 hours to reduce the risk of bacterial contamination. Leaving formula in the feeding bag for 18 hours exceeds safety guidelines and increases infection risk.
D. Maintain bed elevation at 20°. The head of the bed should be elevated to at least 30 to 45 degrees to reduce the risk of aspiration. A 20° elevation is insufficient and does not provide adequate protection during feeding.

Miosis : Pinpoint pupils are a hallmark of opioid overdose due to stimulation of the parasympathetic nervous system. This finding helps distinguish opioid toxicity from other types of substance use, which often cause pupil dilation instead.

Respiratory depression : Opioids depress the medullary respiratory centers in the brainstem, leading to slowed breathing. A respiratory rate of 10/min is significantly reduced and signals impaired ventilation, making it a critical diagnostic clue.

Opioid overdose: The clinical signs—needle marks, sedation, pinpoint pupils, bradypnea, and a positive response to naloxone—all strongly point to an opioid overdose. A similar prior episode adds to the likelihood of chronic opioid misuse.

Alcohol intoxication: While alcohol can depress the central nervous system, it does not typically cause miosis or respond to naloxone. Also, the pattern of rapid reversal with naloxone suggests opioid involvement rather than alcohol alone.

Benzodiazepine overdose: Though it shares features like sedation and respiratory depression with opioid overdose, benzodiazepine toxicity does not cause miosis, and naloxone has limited or no effectiveness as a reversal agent.

Cocaine intoxication : Typically causes stimulant effects including mydriasis (dilated pupils), increased heart rate, hypertension, and agitation. These are not consistent with the symptoms in this case, which reflect CNS depression.