Drug Testing Instructions: Serenity Cup and Other Test Formats

Serenity Cup drug test instructions must match the exact device in your package. The Serenity reference inserts reviewed for this guide specify reading the drug-screening results at five minutes and not interpreting them after ten minutes. Check your supplied insert before applying that timing to your cup.

Different devices can use different specimen requirements, activation steps and result methods. A drug-assay chart must not be used to interpret an hCG pregnancy test, an alcohol color pad or a specimen-validity pad.

First, identify the test you have

Match the product name, configuration and package insert. Check that the package is sealed, the device has not expired and its storage requirements have been followed.

If you cannot identify the matching instructions, contact us for product-document support before testing. Include the product link or code and a clear photo of the pouch or box.

Serenity Cup drug test instructions must match the exact device in your package. The Serenity reference inserts reviewed for this guide specify reading the drug-screening results at five minutes and not interpreting them after ten minutes. Check your supplied insert before applying that timing to your cup.

Different devices can use different specimen requirements, activation steps and result methods. A drug-assay chart must not be used to interpret an hCG pregnancy test, an alcohol color pad or a specimen-validity pad.

First, identify the test you have

Match the product name, configuration and package insert. Check that the package is sealed, the device has not expired and its storage requirements have been followed.

If you cannot identify the matching instructions, contact us for product-document support before testing. Include the product link or code and a clear photo of the pouch or box.

How to read the drug-assay lines

Read each labeled drug assay separately and within its specified reading time.

For the competitive drug assays in these inserts, a faint colored test line still counts as a test line. Its intensity must not be used to estimate drug concentration.

An invalid assay is neither negative nor non-negative. Review the collection and testing procedure and repeat with a new device as directed by the insert. If the problem persists, follow the insert’s instructions for discontinuing use and contacting the supplier.

For additional cross-brand explanations, see how to read a drug test cup.

Drug codes and cutoff levels: a scoped reference

The table below is an excerpt from the supplied Serenity Multi-Drug Urine Test Cup Forensic Use Only reference insert, filename beginning 1624070206. It is not a specification sheet for every cup sold on this website, and it does not establish which assays are included in your cup.

Display codes are retained from that reference insert. For example, that document uses FYL for fentanyl. Do not substitute a different display code or cutoff on a product page without checking the actual label.

These values are screening thresholds, not detection-time promises. The table is an excerpt, not an exhaustive list of assays in the reference document. Match the exact included assays and chosen cutoffs to the device label.

hCG results use a different interpretation

Do not apply the drug-assay chart above to an hCG test. In the hCG section of the reviewed Serenity reference insert, the meanings are:

This is an explanation of the reference insert, not a statement that your cup includes hCG or that a Forensic Use Only device is intended for home pregnancy testing. Use the matching label, read time and permitted-use instructions for the actual device.

Alcohol and specimen-validity pads are separate

An EtG drug-assay panel and an alcohol color pad must not be treated as interchangeable result formats. Use the exact alcohol device’s instructions and supplied color chart; do not estimate a blood alcohol concentration from the drug-assay lines on this page.

Some configurations also include specimen-validity indicators. The reviewed Serenity insert with three ADLTX indicators covers pH, specific gravity and creatinine. Those indicators are not extra drug panels, and their pad colors are not read using the C-and-T drug chart.

A temperature strip or a validity-pad result alone does not establish that every form of specimen substitution or adulteration has been ruled out.

What a screening result can and cannot tell you

A negative screen means the target was not detected at or above the assay’s screening threshold under the test’s conditions. It does not prove that all drugs are absent or explain an individual’s history.

A non-negative screen is preliminary. Follow the exact insert and applicable program procedure for confirmation with an appropriate laboratory method, such as GC/MS or LC/MS when indicated.

A rapid urine screen does not establish impairment, amount used, exact time of use or whether a substance was used lawfully or as prescribed. Do not make those conclusions from the cup alone.

Storage and document matching

The reviewed Serenity reference inserts specify sealed storage at 2–30°C (35.6–86°F), protection from light and no freezing. Use the printed expiration date; do not assume a fixed amount of shelf life remains when ordering.

The reference documents reviewed for this guide are:

• Serenity Multi-Drug Urine Test Cup Package Insert (FDA & CLIA), filename beginning 1624068805.
• Serenity Multi-Drug Urine Test Cup Package Insert (FUO), printing version, filename beginning 1624070206.
• Serenity Multi-Drug Urine Test Cup Package Insert (FDA & CLIA), with 3 ADLTX, filename beginning 1624073502.

A document’s filename does not establish the regulatory status of every product in the brand. Match the document to your exact device. To compare available products, return to the Serenity Cup collection.

Serenity Cup instruction questions

How long should I wait before reading a Serenity Cup?

The Serenity reference inserts reviewed for this guide specify reading drug-screening results at five minutes and not interpreting them after ten minutes. Use those instructions only when they match your exact device; another model or revision may differ.

Does a faint test line mean a non-negative drug result?

For the competitive drug assays described in the reviewed Serenity inserts, a visible control line and a colored test line, even if faint, indicate a negative screen when read within the specified time. Line intensity does not measure drug concentration.

What if the control line does not appear?

The affected assay is invalid, even if a test line appears. Review the procedure and repeat with a new device as directed by the package insert. Do not report an invalid assay as negative or non-negative.

Can I use the drug-result chart for hCG or alcohol color pads?

No. The reviewed Serenity insert gives hCG its own result interpretation, and alcohol color pads require their own instructions and color chart. Keep these methods separate from competitive drug-assay C and T lines.

Is a non-negative Serenity Cup result final?

No. It is a preliminary screening result. Follow the exact insert and the applicable confirmation procedure, using an appropriate laboratory method such as GC/MS or LC/MS when indicated.