My teenage son got in trouble at school today for vaping. The school tested the vape twice and it came up positive both times for THC, but it's a nicotine vape (Geek Geekvape Geek Bar Pulse Review: Astronomical Flavor! Vaping360 GEEK Out Your TASTE GEEK BAR Geek Bar Disposable Vapes Did You Know? One Geek Bar vape contains 800 mg of nicotinethat's the same as 40 packs of cigarettes. Nicotine at these levels can: Harm brain development in youth