Imperial Collage Healthcare

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Lab Code : DDIMER

Test Background
D-dimer results are often used in conjunction with the Well’s score (an index of clinical suspicion of venous thromboembolism) in determining the diagnostic probability of a VTE. A negative d-dimer result is indicative of a low probability of VTE, but a raised d-dimer result may be due to many other factors, eg. infection, inflammation and pregnancy, and so should not be used to confirm a VTE diagnosis in the absence of any other supporting evidence.

Clinical Indications
Assessment of deep vein thrombosis (DVT)
Exclusion of pulmonary embolism (PE)
Assessment and monitoring of disseminated intravascular coagulation (DIC)

Reference Range
<560 μg//L FEU (fibrinogen equivalent units)

Sample Required
4.5 mL sodium citrate (pale blue top) adults 1.8 mL sodium citrate (pale blue top) paediatrics

Turnaround Time
4 hours

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