Evaluation for Pulmonary Embolism - Figure

Evaluation for Pulmonary Embolism - Figure - Flowchart Evaluation for Pulmonary Embolism - Figure Evaluation for Pulmonary Embolism - Figure

Evaluation for Suspected Pulmonary Embolism [Ref]

Pertest Probability (low,medium,high)
Perform V/Q Scan (normal scan, or non-high or high probability)

Pertest Probability (low,medium,high)
Perform V/Q Scan (normal scan, or non-high or high probability) V/Q Scan

Serial Compression Ultrasonography

Days 1,3,7,14

Serial Compression Ultrasonography

Days 1,3,7,14

Serial Compression Ultrasonography

Days 1,3,7,14

Positive for PE

Positive for PE PE

Follow up 3 months

Positive for PE

Positive for PE Positive for PE PE

Compression Ultrasonography

D-Dimer

Venography

Followup 3 months

Possible Angiogram

Normal V/Q Scan

V/Q Scan Normal V/Q Scan

Non-high Probability V/Q Scan and Non-high Pretest Probability

V/Q Scan Non-high Probability V/Q Scan and Non-high Pretest Probability

High Probability V/Q Scan

V/Q Scan High Probability V/Q Scan

Compression Ultrasonography

D-Dimer

Moderate or High Pretest Probability

Low pretest Probability

Positive

Negative

Positive

Negative

Positive

Negative

Positive

Negative

Positive for PE

Positive for PE PE Positive for PE

Negative

D-Dimer

Positive for PE

Positive for PE PE

Ref: Ann Intern Med. 129(12):997, 1006, and 1044

PE = Pulmonary Embolism

V/Q Scan = Ventillation - Perfusion Lung Scan

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