question: my father in law gt admitted in hospital this sunday witChatDoctorplain of chest pain . he is a heart patient. dr confirmed it was not  a stroke, but fluid collection. He was on a medicine call lasix.he was nt taking it sonce last 2-3 weeks.as of now also he is in ICU, as his BP is 90/150 and still not coming under control. Is the situation very risky?