A client with an acute myocardial infarction (MI) is given a thrombolytic medication, aspirin, and IV heparin in the emergency department. Which finding indicates the client is having a satisfactory response?

Activated partial thromboplastin time (aPTT) is 2 times the control value.

S3 heart sounds are present with auscultation.

Cardiac tracing shows 1.2 mm wide Q waves half the height of the complex.

Guaiac test of the stools is positive.