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Fenom Pro™ Nitric Oxide Test is a portable, non-invasive device to measure fractional exhaled nitric oxide (FeNO) in human breath. FeNO is increased in some airway inflammatory processes, such as asthma, and often decreases in response to anti-inflammatory treatment of FeNO by Fenom Pro™ is a method to measure the decrease in FeNO concentration in asthma patients that often occurs after treatment with anti-inflammatory pharmacological therapy as an indication of therapeutic effect in patients with elevated FeNO levels. FeNO measurements are to be used as an adjunct to established clinical assessments. Fenom Pro™ is suitable for children, approximately 7-17 years, and adults 18 years and older. Testing using the Fenom Pro™ should only be done in a point-of-care healthcare setting under professional supervision. Fenom Pro™ should not be used in critical care, emergency care or in anesthesiology.

Fenom Pro™ is a point-of-care breath analyzer that uses solid-state electrochemical technology to measure the fraction of exhaled nitric oxide (FeNO), a marker for airway inflammation, in human exhaled breath. Measurement of FeNO by Fenom Pro is a quantitative and non-invasive method to indicate therapeutic effects of anti-inflammatory pharmacological therapy in patients with elevated FeNO levels. Fenom Pro™ is suitable for children, approximately 7-17 years, and adults 18 years and older. Fenom Pro uses solid state, potentiometric, sensor technology sensitive to nitric oxides (NO) compounds. The solid state sensor is fluidly preceded by a reactive filter material that renders (oxidizes) potentially confounding species such as carbon monoxide (CO), ammonia (NH4), and methanol (CH4O) inactive, or inert, to the NO sensor. Fenom Pro provides visual and audible feedback during its use. The visual and audible feedback is especially important during the FeNO measurement such that the user can modulate their breath speed within the flow parameters required by the American Thoracic Society (ATS) and the European Respiratory Society (ERS) standards. Fenom Pro is comprised of four major components. The main unit contains a touch screen interface for the use as well as houses the nitric oxide sensor and pneumatics needed to sample the patient's breath. The patient interfaces with Fenom though the mouthpiece which is attached to the handpiece. The handpiece is connected to the main unit via a breath tube. The handpiece contains a breath conditioning cartridge which prepares the breath sample from the patient for proper analysis in the main unit. Both the mouthpiece and the breath conditioning cartridge are consumables.