Had to blow as hard as I could into a tube until I heard a beep and then continue blowing for what seemed like 30 sec. All the while keeping the beep going. Passed but on the low side.
Need to quit smoking
Sent from my RM-845_nam_vzw_100 using Board Express
lung function test
Discussion in 'Experienced Truckers' Advice' started by jimjam38, Jun 10, 2014.
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