Oh yes. its a good possibility. I thought it only took 72 hours to get out of your system, but i last used on Sunday took a test on Thursday and still came up dirty. it depends on how much you used and for how long. every body is different..
Heroin will be out of most people's systems in 1 to 3 days. Four days will be beyond the threshold, since Heroin is water-soluable, so it will not show in your urine.
Both will show in a urine sample if tests are done to look for those drugs.
yes
put simple, heroin
Highly likely.
no idea but I would hope that you aren't taking heroin because you will die ;(
It shows up as an opioid (just like heroin does)
Poppy seeds.
Shows up in all of them! urine test i think
Yes. They both shows up the same - as opiates (same as heroin)
Like someone added bleach. It's a dead giveaway.
Morphine, heroin, codeine, hydrocodone, oxycodone, and any other drug that is a derivative of opium.