How To Challenge A DUI Blood Test


If you are charged with DUI, you need to know that there is a way to challenge a DUI blood test. In order to do this, you need to get some professional help. The right lawyer can help you understand the law and how you can fight your DUI charge.

What Is DUI Blood Test?

A DUI blood test is a medical procedure that measures the concentration of alcohol or other substances in a person’s blood. Unlike a breath test, a blood test requires an individual’s consent. If an individual refuses to submit to a blood test, he or she could face higher BAC (blood alcohol concentration) penalties.

Typically, the results of a DUI blood test will take months to show up. In some cases, results can be obtained in less than a month.

When an individual is suspected of driving under the influence of drugs or alcohol, he or she will be taken to a hospital and a phlebotomist will draw a blood sample. This blood sample will then be sent to a county crime laboratory for testing.

Blood tests are more accurate than a breathalyzer and can be used to determine the presence of drugs or alcohol in a person’s system. However, they are subject to errors and can be challenged.

The blood sample should be properly handled and preserved. Failure to do so can result in contaminated or faulty results. It is also important to read all warnings before the blood test is performed.

Blood is drawn from the person’s arm and transported to a crime lab. The sample is then stored for at least a year. During this time, the blood loses its integrity. There are also other factors that can affect the evidence.

If the driver refuses to submit to the test, the Department of Licensing can revoke his or her license. Refusal is considered a misdemeanor.

If the blood test comes back negative, the case against the defendant will likely be dismissed. Even if it does come up positive, the court may still allow the driver to avoid being convicted of a DUI.

Depending on the state, a DUI blood test can be administered at a medical facility nearby the police station. If the driver chooses this method, he or she will be restrained and asked to provide a portion of the blood.

Generally, a DUI blood test is more accurate than a breath test. It can be a bit of a challenge to challenge a DUI blood test result, however.

How Accurate Is DUI Blood Test?

If you have been arrested for driving under the influence of alcohol or drugs, a blood test is a must. Blood tests can measure the exact amount of alcohol in a person’s blood, as well as drugs that are present in the system. These are considered to be the most accurate tests available.

The accuracy of a blood test depends on a number of factors. The results can vary between different drugs and may not be accurate at all. Also, it can take months to get the results of a blood test. This can add to the time it takes to build a case.

In addition to the blood test, a urine test can also be administered to determine the presence of impairing drugs. However, a urine test is less reliable than a blood test.

Generally, a blood test is considered to be the most accurate method of measuring the presence of alcohol and other drugs. It is not as invasive as a breathalyzer test, which can require a person to remain in the vehicle for several hours.

As with any type of test, a blood sample is subject to mistakes. For instance, a blood sample can be misplaced in the lab. Alternatively, the test may be inaccurate due to equipment malfunction.

A blood sample may also be affected by environmental factors. For example, it can be contaminated by foreign objects. The sample can also lose integrity during transport.

Despite its flaws, a blood test is still a great safeguard for a DUI defendant. Unlike a breathalyzer test, a blood sample can be retained for later testing.

While a blood test may be the most accurate method of determining the presence of alcohol and other drugs in the system, it does not prove that a driver is impaired. Although it is a useful tool in the hands of a good DUI lawyer, it is not the best option for every DUI case. Having a skilled attorney on your side will go a long way to protecting you from charges.

When it comes to determining how accurate a blood test is, it is important to know all of the variables that can affect its results. One of the most important factors to consider is time. With a busy state lab, it can take weeks or even months for a blood sample to be processed.

Is DUI Blood Test Required For Any DUI Cases?

If you are facing DUI charges, you may wonder if a blood test is needed. The answer depends on your state’s laws. Some states require a blood sample in all DUI cases. In others, you may choose to take a urine or breathalyzer test.

Blood tests are useful because they provide the most accurate results. Breath tests are more subjective, and they can vary in accuracy over time. A blood test will give the exact chemical content of your blood at the time of the draw.

Obtaining a court order to take a blood test is easy. Police officers are authorized to obtain a warrant at the scene of an accident. You must then undergo the test as soon as possible.

Refusal to take a blood or chemical test can result in many legal consequences. Not only can you face a fine, but your license can be suspended. Additionally, you may be subject to community service hours, and traffic citations.

It’s important to consult with an experienced DUI attorney before taking any action. He or she will be able to explain the details of the DUI laws in your state. And if you choose to testify in court, he or she can analyze your blood test and challenge its validity.

Unlike a breathalyzer test, a blood test is a much more invasive process. This is especially true when it comes to determining blood alcohol concentration.

Because of the invasive nature of a blood sample, it can carry health risks. For instance, if your sample contains an anticoagulant, it can clot. Similarly, if your sample is contaminated by foreign objects, the result could be inaccurate.

Compared to the accuracy of a breathalyzer, a blood test is an important safeguard against a DUI conviction. However, a blood test can be contested if it doesn’t follow the proper protocol.

While there are several factors that can influence the accuracy of a blood test, the most obvious is the time it takes to complete the process. When a state’s lab is busy, it can take months to receive results.

How A Lawyer Can Fight My DUI Charge

If you’ve been charged with DUI, you need to hire an attorney. There are dozens of legal defenses you can use to fight your charge. Having a skilled attorney evaluate your case can help you uncover any legal flaws.

When you are accused of driving under the influence, the police will usually have to conduct a chemical test of your blood. This is known as a DUI blood test. While these tests are useful in proving your guilt, they can be inaccurate. A qualified attorney can challenge the results of the blood test in court.

Even if the result shows a high BAC level, it does not mean you are guilty. If your DUI was based on a chemical test, an attorney may be able to argue that the test was not properly conducted or was administered incorrectly.

The law is extremely complex. In order to prove your innocence, you have to be able to identify the legal flaws in the evidence. An experienced attorney can also challenge the procedures used by the arresting officer.

Blood tests are often taken without a warrant. This can be a challenge in court, as blood test results can be challenged as evidence of an illegal search. However, there are ways to get around this issue.

As a first-time offender, you will likely be required to have an ignition interlock device installed on your car for a period of one year. You will also have your license suspended.

During your trial, you can fight a DUI blood test charge by arguing that the officer had no reasonable cause to stop you or to administer the test. This can lead to a dismissal of the charges.


If you’re facing a DUI charge involving a blood test, seeking professional legal assistance is crucial. These tests, while accurate, can be challenged and have flaws that a skilled attorney can identify. With the potential consequences of a DUI conviction, it’s important to have expert guidance to navigate the legal complexities and protect your rights.

Contact us or call us now for the support you need to fight your DUI charge effectively and visit our blog to stay informed about essential DUI-related information. Your future and freedom are worth defending – let us help you every step of the way. Visit our blog for more related articles.

DUI blood test - Frequently Asked Questions (FAQ)

A DUI blood test is a medical procedure that measures the concentration of alcohol or other substances in a person’s blood. It’s crucial in a DUI case because it provides accurate evidence of impairment due to alcohol or drugs.

While you can refuse a DUI blood test, doing so can lead to serious consequences. Refusal can result in higher penalties, such as increased blood alcohol concentration (BAC) penalties and even license revocation by the Department of Licensing. Refusal is often considered a misdemeanor offense.

Typically, the results of a DUI blood test will take months to show up. In some cases, results can be obtained in less than a month. The time frame can vary based on factors such as the workload of the state lab and other administrative processes.

Yes, a DUI blood test result can be challenged or contested in court. Blood tests, while accurate, are not immune to errors. Factors like mishandling of the blood sample, contamination, faulty equipment, or improper procedure can lead to inaccurate results. An experienced DUI attorney can identify these flaws and challenge the validity of the blood test result.

Time is a crucial factor that can affect the accuracy of a DUI blood test. A busy state lab can result in delays, taking weeks or even months to process a blood sample. This delay can impact the integrity of the blood sample and potentially affect the accuracy of the results.