Avatar universal

What would cause a false positive on the d-dimer test

I have been very ill with extreme headaches, swelling in the glands in my neck, throat, behind the ears, numbness in the head and vertigo. I had blood drawn and my white blood cell count was high they did a d-dimer test on me it came back positive yet the ct scan was normal a side from a sinus infection sinusitis. The my doctor sent did a rheumatoid test that came back negative. Now she said she has another patient that had the same symptoms with the d-dimer test positive and ct scan clear. I have been on antibiotics and it is slowly working my doctor and other doctors she has talked to are researching it but cannot explain it.  I go for a mri the 29th of July. Can anyone tell me what this can be and why the d-dimer is positive I had a head and chest ct both negative. I am female and the othe with the same symptoms is male. We live on a military base and see military doctors. Please help
2 Responses
Avatar universal
According to labs online;  An elevated  D-dimer may be due to a VTE or DIC but it may also be due to a recent surgery, trauma, or infection. Elevated levels are also seen with liver disease, pregnancy, eclampsia, heart disease, and some cancers.  Hope it helps.
4672732 tn?1357814812
   I have had 2 episodes of chest pain in the last 6 months, followed by an elevated D-Dimer.  They checked my lungs both times but found no clots.  I recently got out of the hospital, with an exacerbation of COPD, and my D-Dimer was high then too.  I have taken thyroid meds for years for hypothyroidism, but within the six month span I've talked about, I have lost 40 lbs without trying.  I'm 5'9" and now only weigh 121.  I feel like I'm disappearing.  This last time, they happened to catch a one and one half cm nodule on my thyroid.  I have had neck and headaches on that side, but have been attributing it to TMJ which I have had since I was young.  Now I'm not sure.  I have read that high D-Dimers can be related to cancer, and now I'm scared.  The first time my D=Dimer was high, I had no infection....the thought I was having an MI, which I wasn't.  Could this be related to thyroid cancer?  My Mother had her whole thyroid removed for a large goiter, and eventually died of an unrelated cancer.  I guess I'm just looking for answers and am worried.  Any thoughts?
Have an Answer?

You are reading content posted in the Autoimmune Disorders Community

Top Autoimmune Diseases Answerers
1756321 tn?1547095325
Queensland, Australia
Learn About Top Answerers
Didn't find the answer you were looking for?
Ask a question
Popular Resources
For people with Obsessive-Compulsive Disorder (OCD), the COVID-19 pandemic can be particularly challenging.
A list of national and international resources and hotlines to help connect you to needed health and medical services.
Here’s how your baby’s growing in your body each week.
These common ADD/ADHD myths could already be hurting your child
This article will tell you more about strength training at home, giving you some options that require little to no equipment.
In You Can Prevent a Stroke, Dr. Joshua Yamamoto and Dr. Kristin Thomas help us understand what we can do to prevent a stroke.