Bariatric transfer
Work out the patient's width at the bedside, then read the whole line back to the service arranging the transfer.
If the patient is right against one edge, enter 0 for that side.
Patient width
Accuracy matters more than speed. Patients are rarely knocked back on size alone — but inaccurate figures and guesses are a known cause of significant transport delays, because the wrong aircraft, crew or equipment gets configured.
If your patient is time-critical and measuring would delay care, say so on the phone and flag anything you give as an estimate. An unflagged guess is what causes the problem.
Width here is a planning figure. A patient spreads differently on a hospital mattress than on a narrow stretcher, so the crew may re-check on arrival.