In theory yes, there are 5 individual strips encased in a hard plastic. It would however be a lot of work, and you could risk damaging the strips inside

DrugExam3 Pack - THC Advantage Made in USA Multi Level Marijuana Urine Test Kit. Highly Sensitive THC 5 Level Drug Test Kit. Detects at 15 ng/mL, 20 ng/mL, 50 ng/mL, 200 ng/mL and 300 ng/mL (3)

DrugExam3 Pack - THC Advantage Made in USA Multi Level Marijuana Urine Test Kit. Highly Sensitive THC 5 Level Drug Test Kit. Detects at 15 ng/mL, 20 ng/mL, 50 ng/mL, 200 ng/mL and 300 ng/mL (3)

Q: Does the control strip work if the sample is dilute?

Diluted with what? You should always discard the first pee of the day, the results would not be accurate. Should be testing pee that has been in a container.

Q: after dipping the strips in, the c and t lines showed up almost immediately instead of 5 minutes; is this a false negative?

No, just don't read after 5 minutes. I can tell you tho, do not trust these test. I had clear lines all acrossed, failed a lab test 2 days later.

Q: i tested negative for 300mg-50mg how long would it take for the 2 other lines to be negative too?

All levels show results at the same time. 15,20,50,200,300 should all have a line at the same time if you are showing a negative result. If you have a line on 300,200, and 50 but not 20 and 15, that means you passed the higher levels, but failed the lower levels.

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3 Pack - DrugExam THC Advantage Made in USA Multi Level Marijuana Urine Test Kit. Highly Sensitive THC 5 Level Drug Test Kit. Detects at 15 ng/mL, 20 ng/mL, 50 ng/mL, 200 ng/mL and 300 ng/mL (3)

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Description

🧬 Know your THC status like a pro—because clarity is power!

FAST EFFORTLESS - Get reliable results in just 5 minutes with a simple, easy-to-read test line system.
DISCREET PRIVATE - Confidential testing at home—no awkward trips or second-guessing before official screenings.
TRUSTED AMERICAN QUALITY - Lab-grade accuracy with kits proudly made in the USA for peace of mind.
ULTRA SENSITIVE DETECTION - Detects THC up to 45 days post-consumption at levels as low as 15 ng/mL.
PRECISION BEYOND POSITIVE NEGATIVE - Know your THC level from Ultra Low to Extra High with 5 distinct detection thresholds.

This 3-pack DrugExam THC Advantage test kit offers highly sensitive, 5-level marijuana urine testing with detection thresholds from 15 to 300 ng/mL. Made in the USA, it delivers lab-grade accuracy and fast 5-minute results, detecting THC up to 45 days after use. Perfect for discreet, at-home testing to confidently assess your THC levels before official screenings.