I think the questions he's asking are school/NREMT related. The more experienced and knowledgeable pointed this because they were trying to define terms like "rapid head to toe", "full head to toe", "focus assessment", they said how it varies by text, but these are key terms a lot of EMT text teach and are somewhat unified on now cause of the NREMT.
I feel like I answered this recently.
A rapid head to toe would be everything except the distal extremities. So you'd check the head, neck, chest, abdomen, proximal extremities, and posterior.
For an unreliable patient, you will do a rapid head to toe regardless of it being a trauma or medical scenario and regardless of the mechanism of injury (MOI).
In a medical scenario, if it's a reliable patient, you will do a focus assessment. If it's a unreliable patient (e.g. altered, language barrier), you'll do a rapid head to toe.
If it's a trauma scenario, if it's a significant MOI, you will do a rapid head to toe. If it's a insignificant MOI, you will do a focus assessment.
If time permits during transport, do a full head to toe.
There is another post somewhere around here that goes into more detail and has more feedback from others. I recommend searching for it. It's difficult for me to do this right now because I am typijg this from my phone.