Question 1

what is a ?d-dimer test?

Accepted Answer

Thrombosis: The d-dimer is a fibrin degradation product (or fdp) which represents a small protein fragment in blood after a blood clot is broken down. The value can be used to test for clotting or thrombosis problems. However, a single value or a value in isolation should not be used.

Question 2

d dimer--how effective is this test?

Accepted Answer

Efficacy of d-dimer: That is actually a hard question to answer.  There are different testing methods and some d-dimer tests are more reliable than others.  If you have a low probability of having a blood clot by history and a low d-dimer, it is pretty safe to say that you don't have a blood clot.  If you have a high d-dimer and a high probabilty of a blood clot by history, then your risk of a clot is high.

Question 3

is less than .19 d-dimer result good?

Accepted Answer

Reference Ranges: The answer depends on the units and the reference range in use. Labs are expected to establish the reference range of normal expected values for the population of patients they serve. With d-dimer, one is primarily interested in elevated levels that would suggest some activity in the clotting  mechanisms of the body.

Question 4

can a d dimer effectively rule out pe?

Accepted Answer

: Nothing is 100% but a normal D-dimer virtually rules out PE.

Question 5

is 278 mg/nl considered a high d dimer?

Accepted Answer

Maybe: Unfortunately, the answer depends on the specific method used by that particular laboratory.  There are several brands of d-dimer tests and each lab has to develop its own range of normal values.

Question 6

what could cause abnormal d dimer result?

Accepted Answer

High d-dimer: High d-dimer results can occur because of essentially inflammatory process.  Besides blood clots, high results can be due to various causes: liver disease, high rheumatoid factor, inflammation, malignancy, trauma, pregnancy, recent surgery, and advanced age, to name a few.  A high d-dimner is very non-specific.  A low d-dimer is very help[ful in ruling out blood clots.

Question 7

how sensitive is d dimer negative at 178 ?

Accepted Answer

Pretty good: A negative D dimer can strongly rule out a PE but I never like to say never in medicine. Kim not sure what your symptoms are but if you are still concerned for a Pulmonary embolus than further work up could be warranted. Personally, unless you had high probability I would not proceed any further.

Question 8

what does a high d-dimer quant count mean?

Accepted Answer

Many, many things : D-dimer is a protein that is formed when the body's clotting system has been activated. Unfortunately, there are a very vast number of things and conditions that can cause an elevation in the d-dimer. These can range from blood clots to infections to trauma. So, a simply elevated d-dimer does not do a good job at making an accurate diagnosis.

Question 9

my d-dimer is 0.27 is that a normal range?

Accepted Answer

Units?: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, do you have any symptoms? Why was the test done? What are the units of the number you provided? In short, there is insufficient information to address your question.

Question 10

can having an elevated d dimer be dangerous?

Accepted Answer

Perhaps: The d-dimer is a fibrin degradation product (or fdp) which represents a small protein fragment in blood after a blood clot is broken down. The value can be used to test for clotting or thrombosis problems. However, a single value or a value in isolation should not be used. Elevations may suggest a clotting problem.

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Doctor answers about:

D dimer

A member asked:

What is a ?d-dimer test?

A member asked:

D dimer--how effective is this test?

A member asked:

Is less than .19 d-dimer result good?

A member asked:

Can a d dimer effectively rule out pe?

A member asked:

Is 278 mg/nl considered a high d dimer?

A member asked:

What could cause abnormal d dimer result?

A member asked:

How sensitive is d dimer negative at 178 ?

A member asked:

What does a high d-dimer quant count mean?

A member asked:

My d-dimer is 0.27 is that a normal range?

A member asked:

Can having an elevated d dimer be dangerous?

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