Variable kVp technique charts

[@jerrymanochio4180]

Hi X-Ray Ed, Just stumbled across your channel when looking into exposure techniques and guides. I'm going into my senior year of the radiography program and I was wondering if there is any type of mathematical formula to help build a technique guide. All of the hospitals I've done rotations through have fixed kVp just like your video states. What about mAs? Are there ways to determine technique without measuring every patient? Part of our course is building a technique book and the hospitals I've been at are all too face paced to measure every patient. I'm guessing I can use the 4-5cm rule once I establish a baseline per body part. Any tips would be appreciated. Thanks again!