Will i pass a mouth swab nicotine test today if i took two puffs of a cigarette over three to four weeks ago?

Lets review your que: I swab test is more accurate than a urine, and usually can dectect smoking up to two weeks. Uine checks a breakdown product and with those with fast metabolism they can be nictotine negative in just 2 days. If your company really wants to confirm your test they can ask for a hair sample which is the most accurate, but more expensive test and can detect use up to a month after smoking.