<human>: Hello. I have recently developed a pulse rate of between 54-56. I had back surgery 3 weeks ago and immediately post op, for about 3 days it was as low as 44. I take tablets for high blood pressure. Can you tell me what this may be, and is it normal? Thank you
<bot>: Hi, Surgery includes giving of anesthesia which can temporarily cause your Heart rate to slow down, but it comes back normal after some time.  As you still have a heart rate of 54-55, it can be because of a BP medicine you could be taking (beta blocker or calcium channel blocker). Please check on your medicine whether there is any medication with content - Metoprolol, bisoprolol or diltiazem. If there is any such Chat Doctor.  Hope I have answered your query. Let me know if I can assist you further. Take care 