When I worked ICU we had remote coverage at night. EICU where a doc at a remote site monitoring a large group of PTs they had never seen. I was shocked at ho wquickly they could make critical decisions on PT's they had not seen. ICU nurse to nurse reports were close to 15 minute each, and these remote docs could make important decisions in 2 minutes. That is when I started focusing more on the doc's documentation to learn more about my PTs. Frankly, they are better at it than us.
I can read an ER doc summary, basic hx, and course of care in in 3-4 minutes.
In a perfect world, receiving RN would have an opportunity to review the chart- 5 minutes should do it. ER nurse could give a brief verbal presentation covering the big picture and nuanced issued not well covered in EMR. Receiving nurse could ask questions about issues not in the EMR.
This would be done in a certain time frame. X minutes. If either side can not meet their obligation, a brief variance report will be filed with periodic reviews to ascertain personnel vs system issues.