How to Prepare for a Cocaine Metabolite Screen and

At a glance

Cocaine Metabolite Screen and Confirmation: prep snapshot

Sample type: Blood draw
Fasting: Fasting is usually not required for this test, but requirements can vary by lab and order.
Best collection time: Collection can generally be done at any time the lab is open.
Typical turnaround: Varies by collection lab
Category: Drug & Urine Screening

Below is a plain-language prep guide for the cocaine metabolite screen and confirmation, including sample type and timing basics. This test screens for cocaine metabolites and confirms any screen-positive result.

What this test looks at

It measures the presence of cocaine metabolites, which are substances the body produces after cocaine use. The screen gives a preliminary result, and the confirmation identifies the specific metabolite to verify the finding.

Cocaine metabolite screen
Cocaine metabolite confirmation
Benzoylecgonine

Getting ready for the Cocaine Metabolite Screen and Confirmation

Routine orders rarely require special preparation. The testing location can confirm any timing or fasting details when you book.

Confirm with the lab whether any fasting is needed before collection.
Ask the lab about the best time of day to provide the sample.
Bring a valid photo ID and your test order paperwork.
Tell the collector about any medications or supplements you take.
Stay hydrated unless the lab tells you otherwise.

Fasting, timing, sample type, and what to bring

Fasting

Fasting is usually not required for this test, but requirements can vary by lab and order. Confirm with your lab.

Best time to collect

Collection can generally be done at any time the lab is open. Ask the lab whether a specific collection window is preferred for your order.

Sample type

Blood draw. The collector will explain the process before starting.

What to bring

Your order confirmation email, in case the collection site asks to see it
Your printed lab order or requisition form — the ordering physician prepares it for you after you order, and you print it (or fax it from your account) before visiting
A written list of the medications and supplements you currently take
A short-sleeved or loose-sleeved shirt for an easy blood draw
Water to drink before the draw and a light snack for afterward, if your test requires fasting
A government-issued photo ID (most collection sites verify identity at check-in)

You do not need an insurance card or a payment method at the collection site: the lab does not bill insurance, and you pay at order time, so there is no copay or deductible. The lab also provides the physician's requisition, so you do not need a separate doctor's referral.

Order process and what-to-bring details reflect the lab's published instructions, paraphrased in our own words. Confirm final requirements with the collection lab that will perform your draw.

The collection visit, step by step

A trained collector draws a blood sample from a vein in your arm, which usually takes only a few minutes. The sample is then sent to the lab for screening and, if needed, confirmation testing.

Details worth confirming with the collection lab before your visit:

Does this order require fasting or a specific collection time?
What is the expected turnaround time for screen and confirmation results?
How will I receive my results and who should I contact with questions?

Why the Cocaine Metabolite Screen and Confirmation may be ordered

A clinician may order this test to check for recent cocaine use as part of a drug screening panel. It may also be used in monitoring or employment-related testing programs where permitted.

Reading your results responsibly

Reference ranges and cutoff values vary by lab, so results should be interpreted using the range provided by the testing lab. A positive screen is typically followed by confirmation testing before results are considered final.

General test information is compiled from publicly available reference material, including MedlinePlus (medlineplus.gov) and the Centers for Disease Control and Prevention (cdc.gov), and is reviewed for clarity. Preparation and what-to-bring details reflect the lab's published instructions, paraphrased into our own words. Preparation instructions, timing, and pricing vary by collection lab — always confirm them with the lab that will perform your draw.

Common questions

Frequently asked questions

Do I need to fast before this test?

Fasting is usually not required, but requirements can differ by lab and order. Confirm with your lab before collection.

How long do results take?

Turnaround is typically one to three business days, though confirmation testing may add time. Ask your lab for an expected timeline.

What happens if the screen is positive?

A positive screen is usually followed by a confirmation test to verify the result. Your clinician will discuss what the final results mean for you.

Can medications affect the result?

Some substances can interfere with screening tests. Tell the collector about all medications and supplements you take.

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