A 60-year-old patient is being treated for a recent total knee arthroplasty that occurred 2 weeks ago.  The therapist takes the patient’s vital signs and obtains the following values:

·Heart rate 120 bpm ·Oxygen saturation 89% ·Blood pressure 125/85 mmHg

The patient reports that he has had significant shortness of breath and a persistent cough for the past 2 days.  The patient also displays increased edema in the involved lower extremity.  Which of the following conditions is MOST likely present in this patient?

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