My Husband Has Had Knee Surgery For A Ruptured Quad

my husband has had knee surgery for a ruptured quad tendon. he has therapy at home and they take his vitals . all are fine except his heart rate is very high according to the OT. we have made an appt with his PCP for tomorrow. he has also had eye surgery taking MITOMYCIN eye drops for 3 cycles. just anxious that perhaps some of the meds he is taking may cause this. the OT and i also noticed his hand shaking at times as well. he also takes BP pills and medication for gout. thanks for your time...