AMA CPT® Assistant - 2010 Issue 5 (May)

Coding Brief: Infant Pulmonary Function Testing (May 2010)

May 2010 page 7 Coding Brief: Infant Pulmonary Function Testing In the past, infant pulmonary function tests were restricted to research laboratories. Technology now exists that will allow clinicians to replicate adult-type pulmonary function tests (PFTs) in sedated infants. The raised volume rapid thoracoabdominal compression (RVRTC) technique replicates adult-type spirometry, and, when combined with body plethysmography, allows complete fractional lung volumes to be calculated in infants. RVRTC involves the placement of an inflatable vest and a mask on the infant, after which forced expiratory flow and lung volume measurements are then obtained in the usual manner. Moderate sedation must...

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