[A new cause of false positives when analyzing expired air carbon monoxide].
BACKGROUND
Measurement of expired air carbon monoxide expired is an essential examination to be conducted in smokers during consultation. However, this can be the source of errors, such as that identified in the case report we present here.


METHODS
A 65 year-old man, wishing to stop smoking, consumed a large quantity of polyol-rich sweets and exhibited increased expired air carbon monoxide levels, intestinal gases and increased volume of his liver. All these signs regressed when he stopped taking the sweets.


CONCLUSIONS
The production of intestinal gases related to polyol and isomalt contained in some products may be the cause of error in the measurement of expired air carbon monoxide.
Lagrue
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G
Centre de tabacologie Hôpital Albert Chenevier, 40, rue de Mesly 94000 Créteil.
Mautrait
C
C
Cormier
S
S
Dupont
P
P
D000368:Aged; D001944:Breath Tests; D002182:Candy; D002248:Carbon Monoxide / Q000032:analysis*; D000697:Central Nervous System Stimulants / Q000008:administration & dosage; D002638:Chewing Gum; D005189:False Positive Reactions; D006801:Humans; D008297:Male; D009538:Nicotine / Q000008:administration & dosage / Q000031:analogs & derivatives; D011108:Polymers / Q000008:administration & dosage; D011109:Polymethacrylic Acids / Q000008:administration & dosage; D011145:Polyvinyls / Q000008:administration & dosage; D016540:Smoking Cessation; D013997:Time Factors; D061485:Tobacco Use Cessation Devices
D000697:Central Nervous System Stimulants; D002638:Chewing Gum; D011108:Polymers; D011109:Polymethacrylic Acids; D011145:Polyvinyls; C024617:polyol; D009538:Nicotine; D002248:Carbon Monoxide