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The ABCDE protocol. The completion of the test from preparation phase to written response takes ∼30 min. Recovery phase is optional, and advised in the presence of test positivity. Step A and step C require the very same images. Step E requires only one electrocardiogram lead. Step B can be completed in the early (<30 s) recovery phase. SBP, systolic blood pressure; SE, stress echocardiography.
