Hello, in Six days I have a medical grade Urine Analysis and I have used Heroin

off and on for the past Four months, I smoke about a quarter of a gram to a half gram a day, or less. For the most part I will stop here and there for three to four, maybe even five days at a time and continue smoking. Lately I have stopped smoking for like three days and smoked for two, stopped for four, smoked for five, stopped for three smoked for one.
Anyways, my question is as follows... In six days of drinking lots of water, sweating in a Dry Sauna, taking a good multi-vitamin, Drinking Diet tea, and running a mile a day will I be able to pass a medical grade Urine Analysis?
Any help and or suggestions to kick this process in gear would be greatly appreciated, and please keep your criticism to yourselves.
Thank you in advance for all of your help,
Sincerely,
Tyler Smith.