Problem:
A 77-year-old male patient has an ongoing chest infection, which has now turned into Community-Acquired Pneumonia, for which he has been prescribed Ceftriaxone 1 gram intravenous daily and Doxycycline 100mg orally twice a day. Today, he has been admitted to the hospital with new onset of atria fibrillation and is commenced on Rivaroxaban for clot prevention and a low dose (2.5 mg) of Bisoprolol to assist with heart strain. However, he is refusing to take the Bisoprolol as he states there is nothing wrong with his blood pressure, and he has read that Bisoprolol is antihypertensive.
With reference to peer-reviewed literature from the last 5 years, analyze the potential consequences of not taking Bisoprolol for the patient's health.