The nurse is analyzing the diagnostic test results of a patient who is in the emergency department for shortness of breath. Which diagnostic test result does the nurse anticipate to suggest the cause of the shortness of breath is from heart failure?

Echocardiogram results with an ejection fraction of 55%

BNP results of 155 pg/mL (reference range <100 pg/mL)

EKG results of sinus rhythm with occasional premature ventricular contractions (PVCS)

ABG result with a PaCO2 of 30 mmHg (reference range 35-45 mmHg)