Does THCa Test Positive on a Drug Test?

By Jill Raver

As Cannabis laws evolve, new cannabinoids like THCa are gaining attention. Many users wonder whether THCa will cause a positive drug test result, especially since it is different from THC, the compound that drug tests typically detect. Understanding how THCa works, how it converts into THC, and how drug tests detect cannabinoids is crucial for those concerned about passing a drug test.

Will THCa Show Up on a Drug Test?

The short answer is yes; THCa can lead to a positive drug test result. 

Here’s why:

1. THCa Converts to THC When Heated

Most standard drug tests look for THC metabolites, primarily THC-COOH, which is stored in fat cells and detectable in urine, blood, saliva and hair. Since THCa converts into THC when heated, consuming THCa in a way that exposes it to heat will cause THC to enter your system and result in a positive test.

2. Some Drug Tests May Detect THCa Directly

Although most drug tests do not specifically target THCa, some advanced tests may be able to detect it in your system. If the test is designed to identify all cannabinoids, including THCa, then using products high in THCa (even in raw form) could cause a positive result.

3. Cross-Contamination Risks

Even if you consume raw Cannabis with THCa and do not heat it, there is still a possibility of cross-contamination. Small amounts of THC could be present in the product, leading to a positive test. Additionally, the body may convert small amounts of THCa into THC naturally, which could also trigger a positive test result.

How Long Does THCa Stay in Your System?

If THCa has been converted into THC, the metabolites can linger in the body for varying durations:

• Occasional users: 3-7 days
• Moderate users: 1-2 weeks
• Heavy users: Up to 30+ days
• Chronic users: 60-90 days in extreme cases

*These timelines depend on factors such as metabolism, body fat percentage, hydration levels and exercise habits.

Can You Pass a Drug Test If You Use THCa?

The likelihood of passing a drug test depends on how you consume THCa:

If you consume THCa raw (without heating it):

• The chances of testing positive are low but not zero. Some sensitive tests may detect THCa, or minor THC contamination could result in a positive test.

If you smoke, vape, or cook THCa products:

• There is a high risk of failing a drug test, as the heat converts THCa into THC.

If you use isolated THCa products labeled as THC-free:

• The risk is lower, but trace amounts of THC could still lead to a false positive.

*There is always a risk of testing positive on a drug test when you consume a Marijuana or Hemp product, including THCa.

How to Flush THCa Out of Your System

If you’ve consumed THCa and need to pass a drug test, you might be wondering how to get it out of your system quickly. While THCa itself isn’t typically tested for, it converts into THC when heated, and THC’s metabolites can linger in the body for days to weeks. Here are some options to help flush THCa/THC out of your system:

1. Increase Hydration 

• Drink plenty of water to help flush out toxins.
• Consider electrolyte drinks to maintain balance, especially if sweating a lot.

2. Sweat It Out with Exercise

• Cardio and weight training help burn fat where THC metabolites are stored.
• Sweating through exercise, saunas or hot baths may help eliminate toxins.
• Stop exercising 24 to 48 hours before a drug test - burning fat releases stored THC into the bloodstream, temporarily increasing levels.

3. Eat a Clean Diet 

• Focus on high-fiber foods (vegetables, fruits, whole grains) to help eliminate THC through digestion.
• Eating healthy fats (avocados, nuts, olive oil) may regulate THC storage in fat cells.
• Avoid processed foods and sugar, which can slow metabolism.

4. Try Detox Products 

• Detox drinks may temporarily flush THC metabolites.
• Activated charcoal may help bind and remove toxins from the digestive system.
• Cranberry juice and apple cider vinegar are popular natural detox options, but results vary.

5. Get Enough Sleep 

The body naturally detoxes while you sleep. Aim for 7-9 hours per night.

6. Time It Right 

If possible, stop using THCa products at least two to four weeks before testing.

For chronic users, a longer detox period may be necessary.

Conclusion

While THCa itself is not psychoactive, it can lead to a positive drug test result if heated and converted into THC. Standard drug tests do not typically screen for THCa directly, but they do detect THC metabolites. If you are required to take a drug test, it’s best to assume that THCa consumption carries some level of risk. If you’re unsure whether a specific product will impact your test results, always err on the side of caution and avoid it altogether. If you DON’T have a drug test coming up, order Mystic Labs THCa Pre-rolls for sale today!