Please note: this guideline has exceeded its review date and is currently under review by specialists. Exercise caution in the use of the clinical guideline.

Diagnosis and Treatment of Venous Thromboembolism

Figure 2: (Contd) Pulmonary embolism – risk stratification and management

Perform D-dimer and troponin

Revised Geneva predictive risk score (table 2):

Low risk (score 0-3)see here

Intermediate risk (score 4-10)see here

High risk (score ≥11) – continue below

Administer LMWH treatment dose and continue below.

CTPA

If this is not readily available and patient is clinically stable with normal CXR and no underlying lung disease, then V/Q scan may be an alternative diagnostic option.

No PE – further investigation for PE may be indicated.

PE present – commence apixaban or warfarin and continue below.

Risk stratify according to troponin and RV size (from CTPA or by echo).

RV normal, troponin normal – low 30-day mortality. Consider early discharge and OP management.

RV dilated, troponin normal – intermediate 30-day mortality.

RV dilated or RV thrombus and troponin elevated – high 30-day mortality.

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