Ask an expert
Search expert health advice:
Browse by expert
- ADHD Expert
- Allergy expert
- Anti-ageing expert
- Asthma Expert
- Arthritis expert
- Breast cancer expert
- Cancer expert
- Cough Expert
- CyberDoc
- CyberShrink
- Oral health expert
- Depression expert
- Diabetes expert
- EnviroHealth expert
- Family law expert
- Fertility expert
- Flu expert
- GynaeDoc
- Headache expert
- Healthy Bones
Question
27 Nov 2004
Share
marijuana in blood
Dear Doctor
Can you please tell me how long marijuana stays in the bloodstream for. How many days or weeks later can it show positive in a blood test?
Can you please tell me how long marijuana stays in the bloodstream for. How many days or weeks later can it show positive in a blood test?
Cannabis and its active ingredient THC is tested for in most drug tests. After one-off or occasional use its break-down products or metabolites can be detected between 3-5 days after use. However, THC can be detected in a chronic user up to 12 weeks after use although the average is 25 -27 days.
Cannabis is highly detectable a long time after use because THC lingers in the fatty tissues of the body and leaks steadily into the blood and then the urine over weeks.
Cannabis is highly detectable a long time after use because THC lingers in the fatty tissues of the body and leaks steadily into the blood and then the urine over weeks.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical examination, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.
