Optimal positioning for airway clearance techniques to enhance ventilation to obstructed regions of the lung

Optimal positionAlternative, second-choice position
Secretions in upper lobesSupineSide lying
Secretions in middle lobe and lingulaUprightSide lying or supine
Secretions in right lungAdults: right-side lying
Children: left-side lying
Secretions in left lungAdults: left-side lying
Children: right-side lying
Secretions in lower lobesUprightSide lying