Opioid Overdose Blood Test

What is Opioid Overdose?

Opioid overdose is a life-threatening medical emergency characterized by respiratory depression, altered consciousness, and pinpoint pupils. It is caused by excessive amounts of opioids such as codeine, hydrocodone, morphine, oxycodone, fentanyl, or methadone overwhelming the central nervous system and suppressing breathing. The Opiate Confirmation Serum test is the most important test for identifying specific opioids involved and guiding emergency treatment decisions.

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What causes opioid overdose?

Opioid overdose is caused by taking excessive amounts of opioid medications or illicit drugs such as heroin, fentanyl, oxycodone, hydrocodone, morphine, codeine, or methadone. These substances bind to opioid receptors in the brain and suppress the central nervous system, particularly the areas controlling breathing. When too much opioid is present, breathing slows dangerously or stops completely, leading to oxygen deprivation, brain damage, and death. Overdose risk increases dramatically when opioids are combined with alcohol, benzodiazepines, or other sedatives, or when someone uses opioids after a period of abstinence when tolerance has decreased.

What is the best test for opioid overdose?

The Opiate Confirmation Serum test is the most important test for opioid overdose because it identifies and measures specific opioids in the bloodstream, including codeine, hydrocodone, hydromorphone, morphine, and oxycodone. This test helps emergency medical providers understand exactly which drugs are involved and their concentration levels, which is critical for determining appropriate treatment duration and monitoring needs. For suspected methadone overdose specifically, the Methadone and Metabolite Urine test is essential because methadone has a longer duration of action and requires different treatment protocols. These confirmatory tests work alongside clinical assessment to guide decisions about naloxone administration, ventilatory support, and intensive care admission.

When should I get tested for opioid overdose?

You should get tested if you or someone you know has taken opioids and shows signs of overdose such as slow or stopped breathing, extreme drowsiness or inability to wake up, pinpoint pupils, blue or purple lips and fingernails, or loss of consciousness. Testing is also important after emergency treatment to confirm which specific opioids were involved, especially when the drug source is unknown or multiple substances may have been taken. If you are in recovery and suspect a relapse has occurred, or if you found someone unconscious with pills or drug paraphernalia nearby, immediate emergency care with toxicology testing is critical. Remember that opioid overdose is a medical emergency requiring immediate 911 response before any testing occurs.

What are the symptoms of opioid overdose?
Symptoms of opioid overdose include severely slowed or stopped breathing, extreme drowsiness or inability to stay awake, loss of consciousness or unresponsiveness, pinpoint pupils, blue or grayish skin especially around lips and fingernails, limp body, choking or gurgling sounds, slow or erratic pulse, and cold or clammy skin. The person may be unable to speak or respond to their name, and breathing may become so shallow it is barely detectable. These symptoms can develop within minutes of taking too much opioid, and without immediate intervention with naloxone and emergency medical care, overdose progresses rapidly to respiratory arrest, cardiac arrest, and death.
Who is at risk for opioid overdose?
People at highest risk include those taking prescription opioids at high doses or for extended periods, individuals with opioid use disorder or history of substance abuse, anyone using illicit opioids like heroin or fentanyl, and people who have recently been released from incarceration or completed detox when tolerance is reduced. Risk increases for those combining opioids with alcohol, benzodiazepines, or other sedating medications, older adults with slower drug metabolism, people with sleep apnea or respiratory conditions, and individuals taking opioids without medical supervision. First-time users and those who obtain pills from non-medical sources are also at significant risk, especially with the prevalence of counterfeit pills containing deadly fentanyl.
What happens if opioid overdose is left untreated?
If left untreated, opioid overdose leads to complete respiratory arrest where breathing stops entirely, causing severe oxygen deprivation to the brain and vital organs. Within minutes, this causes irreversible brain damage, seizures, cardiac arrest, and death. Even if the person survives, prolonged oxygen deprivation can result in permanent cognitive impairment, memory loss, difficulty with motor coordination, and vegetative state. The longer the brain goes without adequate oxygen, the more severe and permanent the damage becomes. This is why immediate administration of naloxone and emergency medical intervention are absolutely critical for survival and preventing devastating long-term consequences.
Can opioid overdose be diagnosed with a blood test?
Opioid overdose is diagnosed clinically based on symptoms like respiratory depression, altered consciousness, and pinpoint pupils, but blood and urine tests are essential for confirming which specific opioids are involved. The Opiate Confirmation Serum test identifies and measures opioids like codeine, hydrocodone, morphine, and oxycodone in the bloodstream, while urine tests can detect methadone and other substances. These tests guide treatment decisions by revealing the specific drugs involved, their concentrations, and potential interactions with other substances. Blood tests also help determine how long monitoring is needed since different opioids have varying durations of action, with some like methadone requiring extended observation periods.
How is opioid overdose treated?
Opioid overdose is treated with immediate administration of naloxone, a medication that rapidly reverses opioid effects by blocking opioid receptors in the brain and restoring normal breathing. Naloxone can be given as a nasal spray or injection and often revives the person within minutes. Emergency medical care includes oxygen support, assisted ventilation if needed, intravenous fluids, and continuous monitoring in a hospital setting. Multiple doses of naloxone may be required for long-acting opioids like methadone or fentanyl. After stabilization, treatment focuses on addressing the underlying opioid use disorder through medication-assisted treatment with buprenorphine or methadone, counseling, behavioral therapy, and comprehensive addiction recovery programs.
How can I prevent opioid overdose?
Prevention starts with taking prescription opioids exactly as directed, never increasing doses without medical guidance, and avoiding combining opioids with alcohol or sedatives. Keep naloxone readily available if you or someone in your household uses opioids, and ensure family members know how to administer it. Never use opioids alone, and avoid using drugs from unknown sources as counterfeit pills often contain deadly fentanyl. If you have opioid use disorder, engage in medication-assisted treatment programs and use supervised consumption sites where available. After detox or incarceration when tolerance is reduced, start with much smaller doses if relapse occurs. Store prescription opioids securely away from children and dispose of unused medications properly.
What should I do if I witness an opioid overdose?
If you witness an opioid overdose, immediately call 911 and clearly state that someone is not breathing and may have overdosed. Administer naloxone nasal spray or injection if available by following the package instructions. Place the person on their side in the recovery position to prevent choking if they vomit. Perform rescue breathing or CPR if you are trained and the person is not breathing. Stay with the person until emergency responders arrive, as they may need additional naloxone doses or medical support. Most states have Good Samaritan laws protecting people who call for help during an overdose from prosecution. Do not put the person in a cold shower or try to make them walk around, as these can cause harm.
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Long story short:
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  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
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  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
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Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
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Opiate, Confirmation, Serum
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What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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