Medical Laboratory

Drug Test, types and indications

Persons taking drugs, traces of the drug taken will be excreted with body fluids. A drug test is a laboratory medical procedure to look for drug signs in a sample of urine, blood, saliva, hair, or sweat. Other names: drug screen, drug test, drugs of abuse testing, substance abuse testing.

The purpose of that test is to find out illegal drug use and misuse. The purpose of drug testing includes the following:

  • Detection of illegal drug use, such as cocaine or pleasure drugs
  • Akso may be performed to detect Misuse of prescription medicines. That means you are using the prescription medicines in a different way of the reason being prescribed. Such drugs include pain reliever.

Purposes of drug test

Drug test may be requested for one of the following reasons:
1- As part of preemployment check-up. It may be requested alone or with other lab tests.
2- Pre-enrolling sports. Athletes are usually tested for drugs, such as steroids that help build muscle. These drugs are used to improve performance or build muscles.
3- Random check up
4- Follow up for the status of a drug uses (drug treatment)
5- For legal purposes, as Legal evidence.

What drugs Can drug test detect?

Many drugs, (and prescription drugs), can be detected using drug tests, which are usually don urine samples. Drug test can detect one of the following drugs, or a group of drugs called panel:

  • Cocaine
  • Amphetamines
  • Heroin
  • Morphine
  • Phencyclidine (PCP) (also known as angel dust)
  • Alcohol
  • Benzodiazepines
  • Hydromorphone
  • Tetrahydrocannabinol (THC) (the active ingredient in marijuana)
  • Propoxyphene
  • Methadone
  • Codeine
  • Barbiturates
  • Antidepressants

Sample required for testing

Usually, drug testing is performed using a urine sample, that must be collected in a clean container inside the laboratory premises under observation by the staff, (as per government regulations). You cannot collect at home, or if you don’t have a valid ID.

How long a drug can be found in urine using drug test? Signs of drugs can be found in urine, if the person had used the drug during the last 7-15 days (or more) before the test day. How long a drug lasts in your body depends on many factors:

  • The type of drug
  • How much a person used
  • How long you were using it before the test
  • How body reacts to the drug

Do you need to prepare for a drug test?

No! No special preparations are required. Fasting is not required. Drug testing is often performed on a random basis, at any time of the day.

How accurate are drug tests?

A question that is commonly asked “How accurate are drug tests?” Drug testing is very accurate when are done properly.

Urine for drug testing

Urine drug testing is the most common drug screening. Urine sample collection is painless, easy, quick, and cost-effective. Signs of drug use can remain in a person’s urine long time. Urine test can determine whether a person used specific drugs days or weeks before testing.
The drugs most often tested in urine sample include amphetamines, barbiturates, benzodiazepines, cocaine, cannabis, methamphetamine, opioids, phencyclidine (PCP).

To detect alcohol, Urine is not used but breath or blood tests are commonly used.

Drug Test Panel

Usually the test id. done to detect a group of drugs called drug Panel. Drug panel can include 4 drugs, 7 drugs or up to 14 drugs. A 14-panel drug test screens for thirteen of the most frequently abused prescription drugs (like Xanax, Fentanyl, Ritalin, Valium) and illegal drugs (Like Cocaine, PCP, cannabinoids, quaaludes). A urine test is the most common way to perform a drug test.

5-panel drug testA 5-panel drug test for employee screening looks for MMJ, opiates, phencyclidine (PCP), cocaine, and amphetamines. It is the most commonly requested drug panel.
6-panel drug testA 6-panel drug test looks for MMJ, opiates, cocaine, amphetamines, methamphetamines, and benzodiazepines.
7-panel drug test A 7-panel drug test looks for the presence of MMJ, opiates, phencyclidine (PCP), cocaine, amphetamines, barbiturates, and benzodiazepines.
8-panel drug test An 8-panel drug test tests for MMJ, opiates, phencyclidine (PCP), cocaine, amphetamines, methamphetamine, barbiturates, and benzodiazepines.
9-panel drug testA 9-panel drug test tests for the presence of MMJ, opiates, phencyclidine (PCP), cocaine, amphetamines, methamphetamine, barbiturates, benzodiazepines, and methadone.
10-panel drug testA 10-panel drug test typically tests for the presence of MMJ, opiates, phencyclidine (PCP), cocaine, amphetamines, barbiturates, benzodiazepine, methadone, methaqualone, and propoxyphene.
12-panel drug testA 12-panel drug test is administered to test for MMJ, opiates, phencyclidine (PCP), cocaine, amphetamines, barbiturates, benzodiazepine, methadone, methaqualone, propoxyphene, Ecstasy/MDA, and oxycodone.
13-panel drug testA 13-panel drug test is performed to detect the presence of 13 highly abused prescription and illegal drugs. 
It screens for MMJ/ tetrahydrocannabinol (THC), opiates, phencyclidine (PCP), cocaine, amphetamines, barbiturates, benzodiazepine, methadone, methaqualone, propoxyphene, buprenorphine, oxycodone, and tricyclic antidepressants (TCA)
14-Panel Urine Drug The 14-Panel Urine Drug Test tests for everything a 12 panel drug tests for plus Tramadol and Demerol.

Summary:

Drug test is used to check for illegal drug use by employees, to evaluate possible accidental or intentional overdose or poisonings, to monitor compliance with a drug rehabilitation program, and to determine the presence of drugs for legal purposes. It may be done to detect illegal drugs, or any of prescription drugs.

SOURCES:

  • https://medlineplus.gov/lab-tests/drug-testing/
  • https://www.healthyplace.com/addictions/articles/what-is-drug-testing
  • https://www.medicalnewstoday.com/articles/323378
  • Urine Sample Collection, Types, Uses and more | Lab Tests Guide

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