A 7-year-old being cared for at home on a ventilator has an alarm and a pulse rate of 40. What is the best immediate action?

• A. Check the settings
• B. Increase volume of ventilation
• C. Increase number of ventilations on the machine
• D. Assist her ventilations with a BVM

Answer: (D)

In a child who’s on a ventilator and develops an alarm with a very low pulse, the first priority is to ensure ventilation to correct potential hypoxia. A pulse of 40 is a sign of significant hypoperfusion often driven by inadequate oxygen delivery, so you want to deliver breaths manually right away.

Using a bag-valve-mask lets you provide controlled, continual breaths with 100% oxygen while you assess and address the ventilator. It also lets you observe chest rise and confirm airway patency, which is crucial when a machine isn’t delivering reliable ventilation. While you’re doing this, you can quickly check for obvious issues with the airway, tubing, or settings, but you don’t wait to fix the machine if the patient isn’t being oxygenated.

Increasing the machine’s volume or rate without confirming the airway is open and delivering effective breaths can risk overdistension or inadequate ventilation, and simply checking settings could delay critical oxygen delivery. By manually ventilating first, you stabilize breathing and buy time to troubleshoot the equipment and reassess the patient’s perfusion and response. If the patient’s condition doesn’t improve, you’d move toward additional steps as appropriate.