┌────────────────┬──────────────────┬───────────────────────────┐
│ Problem
│ Potential Cause │ Corrective Action
│
╞════════════════╪══════════════════╪═══════════════════════════╡
│ Decreasing flow│ Regulator seat
│ Replace seat and check
│
│ control does
│ damaged allowing │ regulator.
│
│ not cause flow │ a large leak.
│
│
│ gauge to
├──────────────────┼───────────────────────────┤
│ decrease; may │ Airway pressure │ Connect or clear blockage.│
│ read 25 lpm or │ monitor tube
│
│
│ more.
│ blocked or
│
│
│
│ disconnected.
│
│
│
├──────────────────┼───────────────────────────┤
│
│ Proximal airway │ Repair or replace gauge. │
│
│ pressure gauge is│
│
│
│ malfunctioning. │
│
│
├──────────────────┼───────────────────────────┤
│
│ With mechanical │ Replace diaphragm.
│
│
│ lung connected: │
│
│
│ rolling diaphragm│
│
│
│ is ruptured.
│
│
├────────────────┼──────────────────┼───────────────────────────┤
│ Nebulizer not │ Nebulizer jet is │ Clean the jet.
│
│ delivering
│ blocked.
│
│
│ adequate
├──────────────────┼───────────────────────────┤
│ nebulization
│ Pendant missing │ Replace missing component │
│ regardless of │ from 500cc
│ and check nebulizer
│
│ control
│ nebulizer.
│ function.
│
│ setting.
│
OR
│
│
│
│ Capillary missing│
│
│
│ from therapy
│
│
│
│ nebulizer.
│
│
│
├──────────────────┼───────────────────────────┤
│
│ Nebulizer empty. │ Replace contents.
│
│
│
│
│
├────────────────┼──────────────────┼───────────────────────────┤
│ With all
│ Adjust expiratory flow
│
│ controls set
│ flow within the │ gradient control.
│
│ for minimum
│ breathing
│
│
│ CPAP, up to
│ circuit.
│
│
│ 4mmHg remains │
│
│
│ in breathing
│
│
│
│ circuit when
│
│
│
│ outflow valve │
│
│
│ is set to
│
│
│
│ minimum.
│
│
│
└────────────────┴──────────────────┴───────────────────────────┘
Table 2-17. Troubleshooting in either mode of operation (continued).
MD0355
2-35