I agree with what a lot of others have said. It really depends on your pt presentation. If they look like crap, and you genuinely feel that there is a problem, then sure. Though I have ran across PTs that know that they go in and out of 2nd degree type 1 rhythms and that is normal for them.
If they are hemodynamically stable then by all means dont put you, the patient, or the public at risk by going code 3. I dont care if they are in a complete block, If they are stable just let it ride man.