Hello bmontgomery18 , greetings from healthcaremagic.com
Answer to your question is " Yes " you should take your father to the ER . He has multiple problems as per your case history and when time comes he will need multiple attentions at the same time and i guess you will find such care in ER only. Also i would like to enquire if he is having fever
or has he stopped taking food properly , which may indirectly account for his sudden rise in heart rate
which you mentioned. Hope i have been able to answer your queries. Take care.