Quick answer: To use a urine drug test cup, collect the specimen, seal the lid, check the temperature strip within 4 minutes, and read results at 5 minutes. A line in a panel window means negative; no line means a preliminary positive. American Screening Corp advises confirming every positive by GC/MS or LC-MS/MS laboratory testing.
- Read at 5 minutes and discard any result read after 8 minutes (typical insert window; confirm on your insert).
- No line in a drug window is a preliminary positive, never a final result.
- Every preliminary positive needs laboratory confirmation by GC/MS or LC-MS/MS.
What do the instructions say for a urine test cup?
Instructions differ slightly by manufacturer and panel count. The package insert that ships with your lot is the controlling document. This guide covers the steps common to FDA-cleared, CLIA-waived multi-panel cups sold by American Screening Corp (ASC) in Shreveport, Louisiana, for clinics, treatment centers, courts, probation and employers.
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If your cup is sold under another label, follow that insert for timing and interpretation, and use this page as a general protocol only.
What should you prepare before collection?
- Check the expiration date on the pouch and cup. Never use an expired device.
- Let the cup reach room temperature (about 59-86°F, or 15-30°C) if it was stored cold.
- Confirm donor identity and complete the chain-of-custody or intake form.
- Have a timer, gloves and a flat, clean surface ready.
- Keep the donor's belongings out of the collection area per your written policy.
How do you run the test, step by step?
- Put on gloves and open the sealed pouch only when the donor is ready.
- Have the donor provide a specimen directly into the cup. Most inserts call for at least the minimum fill line, commonly about 30 mL.
- Screw the lid on tightly and place the cup on a flat surface.
- Check the temperature strip within 4 minutes. A valid fresh specimen typically reads 90-100°F (32-38°C). A reading outside that range should be documented and handled under your policy.
- Peel the label or open the cover to expose the test strips, as your insert directs.
- Start the timer at once. Read at 5 minutes.
- Record results, initials, date and time before discarding the cup as biohazard waste.
How do you read the results?
Each drug window has a control line (C) and a test line (T). The test is built on a competitive format, so the result reads opposite to what many people expect.
- Negative: two lines, one at C and one at T. Even a faint T line counts as a line.
- Preliminary positive: a line at C and no line at T for that drug.
- Invalid: no line at C. Repeat with a new cup and a new specimen per your policy.
Per the HHS Mandatory Guidelines for Federal Workplace Drug Testing Programs (SAMHSA), a non-negative initial test is not a reportable positive until a laboratory confirms it.
Which cutoff levels apply?
Many 5-panel and 10-panel cups use cutoffs aligned with the SAMHSA initial urine testing levels. Panel configuration varies, so check the insert for your exact device.
| Drug (target) | Typical cutoff (ng/mL) | Typical detection window |
|---|---|---|
| Marijuana metabolite (THC-COOH) | 50 | 1-3 days single use; 30+ days heavy chronic use |
| Cocaine metabolite (benzoylecgonine) | 150 | 2-4 days |
| Amphetamine / methamphetamine | 500 | 2-4 days |
| Opiates (morphine / codeine) | 2,000 (some cups use 300) | 1-3 days |
| Phencyclidine (PCP) | 25 | 3-8 days |
Detection windows are general ranges. Dose, frequency, metabolism and hydration all change them.
How do you choose between a cup and a dip card?
A cup holds the specimen in a closed container and usually includes a temperature strip, which helps with specimen validity at the point of collection. A dip card is lower in cost per test and suits high-volume settings where a separate container is already used. Compare options in our drug test cups and drug test dip cards collections.
What is the compliance checklist before you rely on a result?
- Device is FDA-cleared and CLIA-waived for its intended use, per the FDA drugs-of-abuse test listings.
- Lot number and expiration are recorded on the form.
- Temperature was checked within 4 minutes.
- Result was read inside the insert's time window by a trained staff member.
- Any preliminary positive is sent for GC/MS or LC-MS/MS confirmation.
- Federally regulated DOT testing follows 49 CFR Part 40 and uses laboratory testing, not a point-of-care cup, for the regulated result.
Employers hiring at scale can pair testing with pre-employment screening through Reveal Background, ASC's sister division. For bulk quotes or private label, contact American Screening Corp.
What mistakes cause bad reads?
- Reading too early or after the window closes, which can create false faint lines or fade.
- Tilting or moving the cup during the read.
- Storing cups in heat or direct sun.
- Treating a screen as final without laboratory confirmation.
Frequently asked questions
How long do you wait to read a urine drug test cup?
Read at 5 minutes. Most inserts say results read after about 8 minutes are not valid. Confirm the window on your insert.
What does one line mean on a drug test cup?
A line at the control position only, with none in a drug window, is a preliminary positive for that drug. Confirm it by GC/MS or LC-MS/MS.
What temperature should a fresh urine specimen be?
Typically 90-100°F (32-38°C), checked within 4 minutes of collection. Document any out-of-range reading and follow your written policy.
Can a cup result be used as a final positive?
No. A cup is a screening device. A positive is preliminary until a laboratory confirms it by GC/MS or LC-MS/MS.
Sources
- SAMHSA: Workplace Drug Testing and HHS Mandatory Guidelines
- eCFR: 49 CFR Part 40, Procedures for Transportation Workplace Drug and Alcohol Testing Programs
- FDA: Drugs of Abuse Tests
This article is general information, not legal or medical advice.
