Application of Wells Criteria, in Combination With Serum D-dimer to Rule Out Deep Vein Thrombosis in Lower Extremities

Conclusions: The present study aimed to introduce a cost-effective, reliable, and available modality to recognize patients afflicted with DVT. The Wells rule, alone or in combination with D-dimer testing, does not guarantee accurate assessment of risk in primary care patients in whom DVT is suspected. Using Wells criteria in low -risk group may decrease the need for ultrasonography in up to 28% of patients, and may be cost beneficial.