There are multiple definitions:

1. arterial blood gas(English)

   • an essential tool in the clinical assessment of acutely ill patients
   • aVBG, v-TAC, BD, FTE, MV, etCO2, VBG
   • Clinical chemistry, Respiratory system, Intensive care medicine, Critical Care, Anesthesiology/analgesia
   • https://doi.org…urg.2022.826761

2. air-bone gap(English)

   • post-operative level of 20 dB or less is considered as a successful hearing result
   • TMWM, CWU, PORP, TMA, TORP, WRS, PC, SCD, VEMP
   • ENT, Surgery, Audiology
   • https://doi.org…1002/lary.27848
   • https://doi.org…diolres14020028