D-dimer is used in the diagnosis of deep vein thrombosis and pulmonary embolism among patients with low or unlikely probability of venous<unk> .  While 500 ng/mL has long been the most commonly used cut off value for abnormal D-dimer concentration, recent studies suggest the use of an age adjusted cut-off concentration of D-dimer.  The age adjusted cut-off value of D-dimer is 500 ng/mL for subjects whose age is less than 50 years, and the age multiplied by 10 for subjects older than 50 years.
D-dimer diagnostic role in thromboembolism
D-dimer prognostic role in thromboembolism occurrence
D-dimer prognostic role in thromboembolism recurrence
D-dimer prognostic role in non thromboembolism conditions
D-dimer prognostic role in mortality
Portal vein thrombosis diagnostic study of choice
Portal vein thrombosis echocardiography or ultrasound
Air embolism echocardiography or ultrasound