Uh, what would ALS do for this patient that you cannot? And why could you not disconnect the vent? Assess the patients LOC, lung sounds, pulse oximetry, vital signs, and affect. Pull the vent off and soft cath suction the trach. Hook your BVM up with 100% O2 and reassess the patient, and transport with parents and Hx.
When you get back to station after the call, learn about the condition that put the pt on the vent, learn about home care vents, and read up on assessment and common respiratory conditions. Than next time you get a call, teach everybody what you already know and you will look like a real professional.