After Harry's heart attack he is hospitalized for several days, yet he isn't connected to an IV, there isn't one in his arms or hands, and Nurse Mary keeps giving him injections in the arm. It's standard procedure to put myocardial infarction patients on an intravenous saline drip, this helps maintain blood pressure and ensure proper hydration. More importantly, having constant intravenous access is critical for cardiac patients, in the event they suffer another episode it allows for the immediate administration of drugs. Plus it saves the patient from being poked numerous times when it comes to administering routine medication, and drawing blood for lab tests.
The Panasonic remote in the crime scene is too modern than one from the 1990s. It's a mid or late-2000s model remote.