In-Check Nasal is a portable hand-held inspiratory flow meter that provides objective assessment of nasal airway patency.
It is used to identify the severity of nasal congestion, though a simple measurement of how quickly the air can move through the nose when inhaling forcefully.
In-Check Nasal provides an inexpensive alternative to rhinomanometry, with the added advantage that monitoring can be done easily, on a daily basis, by the patient in their home environment - providing accurate and objective assessment of nasal congestion and response to treatment.
Inhaling through the nose when using an In-Check Nasal will cause air to be drawn through the meter - a cursor moves along the scale to indicate the speed of inhalation. The flow rate achieved can be noted by checking the position of the cursor against the calibrated scale.
Through daily measurement of PNIF (peak nasal inspiratory flow) the patient can record a series of readings over a two week period (or more). The fluctuations in these readings document the changing levels of nasal congestion the patient experiences over the period.
In-Check Nasal inspiratory flow meter - Ref 3109750
Weblinks:
British Medical Journal - Clinical review - Perennial Rhinitis
Mackay I S , Durham S R . ABC of allergies - Perennial rhinitis
BMJ 1998;316:917 ( 21 March )
http://bmj.bmjjournals.com/cgi/content/full/316/7135/917
British Medical Journal - Clinical review Allergic Rhinitis
Parikh A, Scadding G.K. Fortnightly review: seasonal allergic rhinitis
BMJ 1997;314:1392 (10 May)
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