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Also reported in: mcg/mL, ng/mL
D-dimer measures fragments released when blood clots dissolve. A normal level effectively rules out a significant active blood clot in most clinical situations.
A very low or undetectable D-dimer is actually a reassuring result. It means there is no significant clot-dissolving activity in your body, making active blood clots very unlikely.
This is a reassuring result. No blood clot activity is detected.
D-Dimer: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})Your D-dimer is very low, which is a good sign. D-dimer rises when your body is actively breaking down a blood clot. A low level makes it very unlikely that you have an active clot like a DVT or pulmonary embolism.
Reassuring result. No further clot-related investigation needed based on this test alone.
D-Dimer: {{value}} {{unit}} — low (ref: {{low}}–{{high}})Your D-dimer is well within the normal range. This means there is no significant evidence of active clot formation or breakdown happening in your body right now.
No action needed. Good result.
D-Dimer: {{value}} {{unit}} — low normalD-dimer measures fragments released when blood clots dissolve. A normal level effectively rules out a significant active blood clot in most clinical situations.
Good result. No signs of an active blood clot.
D-Dimer: {{value}} {{unit}} — within reference rangeYour D-dimer is in the optimal low range, confirming there's no active clotting and dissolving process happening. This is the best possible result.
Nothing to worry about here.
D-Dimer: {{value}} {{unit}} — optimalYour D-dimer is just above the normal threshold. D-dimer can be mildly elevated for many reasons including recent injury, surgery, pregnancy, infection, or inflammation — not just blood clots. However, it does need to be put in context with your symptoms.
Your doctor needs to assess this alongside your symptoms. If you have leg pain, swelling, or shortness of breath, see a doctor today.
D-Dimer: {{value}} {{unit}} — borderline elevatedA significantly elevated D-dimer is a major red flag for an active blood clot — either a deep vein a clot forming (DVT) in the leg or a pulmonary embolism (clot in the lungs). While other conditions can also raise D-dimer, this level warrants urgent investigation.
See a doctor or go to A&E urgently, especially if you have leg pain, swelling, or difficulty breathing.
D-Dimer: {{value}} {{unit}} — elevated (ref: {{low}}–{{high}})A critically high D-dimer level signals major clotting and clot dissolution happening in your body. This could indicate a large pulmonary embolism, massive DVT, DIC (a serious whole-body clotting disorder), or other life-threatening clot-related emergency.
This is a medical emergency. Go to the emergency room immediately or call emergency services.
D-Dimer: {{value}} {{unit}} — critically elevated (ref: {{low}}–{{high}})Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.