Use of standard number or full name of the standard

Hi sir,

In the exam can we just mention the standard number rather than writing the full name of the standard? For instance, for going concern can I just write according to isa 570, or do I have to write according to isa 570 GOING CONCERN. This is just for reference, cuz some standards have huge names like ISQC1 so in that case just writing the name would consume time as well. So is it fine to just write the standard number and continue? Thanks