The Epwoh scale is used for assessing:
Body mass index
Vital capacity in Post operative patients
Sleep apnea
Risk of embolism in perioperative patient
The Epwoh Sleepiness Scale (ESS) and the STOP-Bang questionnaires have not been validated in outpatient primary care settings but are quick and easy to use. The ESS measures daytime sleepiness, with a score of >=10 indentifying individuals who warrant additional investigation scale. Ref Harrison 19th edition pg 1721
Respiratory system