How long does it take for a drug test to come back from a lab?

Almost all negative results will be available to you 1-2 business days after the testing lab receives the specimen. If additional testing is needed, we may need an extra day or two to confirm the results. Positive results may take between 4-6 days because of the repeated tests that are needed to confirm drug use.

How long does blood work take for DUI?

These independent findings are admissible in court and may prove your innocence in a DUI case. The DUI blood test results time is usually about four to six weeks, so make sure to plan accordingly when it comes to your court date.

What drugs are tested for in a DUI blood test?

The blood sample is sent to the County toxicology lab, which will test for the presence of a panel of legal and illegal drugs that can cause impairment in drivers, including cocaine, heroin, methamphetamine, prescription painkillers, anti-anxiety medication, sleep aids and marijuana.

What happens when a drug test is sent to a lab?

For a lab-based test, the collected specimen (urine, hair, oral fluid) is sent to a laboratory for more rigorous testing. As such, it takes longer to get the results (2-3 days, on average). A lab-based test can screen for any drug.

Why do drug test results take so long?

Positive Initial Results Take Time to Confirm The good news for employers is that results are presented much more quickly when test results are negative. But as the MRO process is strongly regulated and must be performed a precise way, drug test results do occasionally take several days to confirm.

How accurate is blood test for DUI?

Blood tests are generally more reliable than breath tests, but they aren’t bulletproof. Blood samples must be properly handled and preserved. Otherwise, the blood sample can be contaminated and will no longer give an accurate measure of the suspect’s BAC level.

Is it better to take breathalyzer or blood test?

Blood tests generally produce more accurate results than breathalyzers and other breath tests. Blood tests directly measure the suspect’s actual BAC. Breath tests only indirectly measure someone’s BAC. Blood tests are also less susceptible to environmental factors that can skew the results.

How do DUI blood tests work?

Some drivers may prefer a DUI blood test. Blood tests directly measure the amount of alcohol in someone’s bloodstream. Breath testing devices measure the amount of alcohol in deep lung air. They then mathematically convert this to an approximately equivalent BAC.

Is it good to not hear back after a drug test?

For the most part, you should hear back in a week. If you result in negative diluted (drink too much water), then you hear back the next day and usually get a second chance to retake within 24 hours. Not long if they need you.

What does it mean if my drug test is pending?

Rather, a “pending” status simply means that the candidate is still being processed, which could be for a number of reasons. For example, the MRO review process may be delayed because a candidate did not immediately begin the drug screening process.

How accurate is a BAC blood test?

Blood alcohol tests are very accurate in determining BAC levels, but in some cases, the results may be misleading. These cases may involve: People with diabetes or high blood ketones.

How does a blood alcohol test work?

A blood alcohol test measures the amount of alcohol (ethanol) in your body. Alcohol is quickly absorbed into the blood and can be measured within minutes of having an alcoholic drink. The amount of alcohol in the blood reaches its highest level about an hour after drinking.