Vitamin K - IV route & clarifications

!). I had an order for Vitamin K "Slow I.V. push" last night. Anyone else give it this route?
( Pt's INR was 4.8 )

2). When you clarify with pharmacist on meds (whether it be route, compatibility, dilution etc.) do you document anything on the MAR?

- I clarified this route with pharmacy and he said the literature on Vitamin K IV route is outdated and it is okay to use IV push - slowly.

-I always want to note on the MAR that I have clarified unusual orders... not only 'for the record' but also so the next nurse can see it was clarified in case she needs to do the same etc. My senior nursing partners say 'not necessary to document clarification, it's only "for your own piece of mind" - I say I want it for some CYA too - what say you guys?