D-Dimers explained

The D-dimer test is a marker of blood clotting activity and is not diagnostic of VTE When used appropriately the D-dimer test helps “rule out” VTE if the test is negative and the chance of the patient having a VTE is relatively low

EM Don’ts

Avoid CT of the head in asymptomatic adult patients in the emergency department with syncope, insignificant trauma and a normal neurological evaluation. Avoid CT pulmonary angiography in emergency department patients with a low-pretest probability of pulmonary embolism and either a negative Pulmonary Embolism Rule-Out Criteria (PERC) or a negative D-dimer. Avoid lumbar spine imaging in […]

Emergency Medicine Kenya Foundation

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