Lab Testing

Product Description

**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a Patient Direct Program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**

D-dimer levels can be elevated in many clinical circumstances, especially in hospitalized patients. D-dimer should not be used as an aid for exclusion of venous thrombosis or pulmonary embolism in pediatric patients in any circumstance and adult patients with the following:

• Therapeutic dose anticoagulant administered for >24 hours before D-dimer is measured.
• Thrombosis distal to the knee only.
• Fibrinolytic therapy within previous seven days.
• Upper extremity thrombosis.