قياس التنفس

Key facts

Diagnostic.Caption

Flow-Volume loop showing successful FVC maneuver. Positive values represent expiration, negative values represent inspiration. At the start of the test both flow and volume are equal to zero (representing the volume in the spirometer rather than the lung). The trace moves clockwise for expiration followed by inspiration. After the starting point the curve rapidly mounts to a peak (the peak expiratory flow). (Note the FEV1 value is arbitrary in this graph and just shown for illustrative purposes; these values must be calculated as part of the procedure).

Diagnostic.MeshID

D013147

Diagnostic.Name

Spirometry

Diagnostic.Image

Flow-volume-loop.svg

via Wikipedia infobox

• Standardisation of spirometry.The European respiratory journal · 2005
• Spirometry.Respiratory care clinics of North America · 1997
• Spirometry.Clinical reviews in allergy & immunology · 2009