I must quit nicotine "cold-turkey" for a job drug test. i am bipolar. how might this impact my emotional health if i quit suddenly and permanently?

No major effect: I wouldn't expect any major effects other than a bit of grumpiness. If you're currently in a hypomanic phase, this effect could possibly be exacerbated but you probably won't notice much difference if you're taking your meds regularly.

Improve your health: Stopping smoking will increase the longevity and overall health. SOME SHORT term side effects may be irritability, headache, increase in appetite. Yous sense of smell and taste will come back. You will cut your risk of throat, bladder, lung, and stomach cancer. You will have bronchitis and pneumonia less frequently. You will save money. You may even be less anxious.

Nicotine withdrawal.: My biggest concern in your case would be that the symptoms of nicotine withdrawal could mimic anxiety or mania. So when you stop cold turkey, be aware that any symptoms you develop would be from that and not from anxiety or mania. Try to keep it in context.