Bob is a service technician who is well trained and nationally certified. However, he has sometimes suffered from the same confusion that all technicians occasionally do — the facts that he gathers ...

Endotracheal tube (ETT) suction is performed periodically on infants receiving mechanical ventilation to clear secretions from the ETT and airway. Although necessary, it is associated with adverse ...

The suction line of a refrigeration system is normally insulated with a flexible, closed-cell elastomeric material. Wall thicknesses vary between 3/8- and 1-inch. Medium-temperature systems generally ...