the question is really ambiguous as there are a lot of factors that needs to be considered to answer the question properly 1) your husband physically fit? having a resting pulse rate of 55 is hard to achieve unless you are an athlete 2) does he have have any medical condition or take medication that can affect him to have low blood pressure? 3) in the blood pressure reading the bottom number diastolic is low while the top number systolic is normal. 4) is he tired nausea etc? posting symptom of low blood pressure. <link> if he is physically fit and don't experience those symptom then there is nothing to worry about. otherwise should go to a doctor as people blood pressure rises as they age usually.
is my husbands low pulse rate something to worry about. he is on high blood pressure and this morning at 9 am his blood pressure was 13<negative_smiley>68 with a pulse of 55. earlier this morning his pulse was 54.