hi,
you said patient does not have any family history,and no medical history.................
still bleeding did not stop since 30mins...........
but you did not tell that did you apply pressure,or topical application to stop bleeding..........
and what type of bleeding like,profuse bleeding or blood was coming out slowly......
before scaling what was the condition of
gingiva,is there sever gingivitis?.....
if after application of pressure bleeding was there and it was a severe bleeding,you should consult with a physician............
do not get worried,be calm and handle your patient...........
everything will be good......
all the best...
take care
Dr.Gunjan Gupta