Different nurses have different sheets. Most use one basically blank sheet. I fold mine in half and use one side for each patient. Top half had past medical history amd current hospital course. Sometimes that current is everything that has happened, sometimes its the original reason for coming to the ICU and where they're at now. Bottom of the half sheet is for the current assessment. I like a system report and most of our nurses do too. I write sections for cardiac, respirator, neuro, gi, gu, skin, IV and "needs". I sometimes write allergies, usually code status.
At the end of it all, the paper is a brain but the computer is the final back up (as long as my brain doesn't say something in the computer is wrong. ) what I don't write down is always on the computer.