Generally, there is a protocol in place for emergent vs. non-emergent issues. Generally at night, when you are more than likely going to get the on-call doc., you have to ask yourself: what is the doc. Going to do? Ask yourself, is the patient symptomatic or asymptomatic? Would monitoring be a better option rather than calling? Keep in mind, calling a doc. Is not wrong, but eventually you want to come to a point where you can weed out the 'should I call' vs. the 'I should call now' situations. Second, medication administration is important, especially considering the type of med, and the patient'a acuity level. Jantoven is prescribed to thin the blood, keeping in mind the concern is for clots, you can kind of put two-and-two together on its importance. The key that I will stress is that nursing is a learning experience. You will not be perfect, but, with time you will notice a general trend towards trusting your gut and knowing the right decision.