EOD Scuba Supervisor Practice Exam

When a required decompression stop is missed, having a chamber at the surface changes the approach: you switch to surface decompression in the chamber. This lets you complete the remainder of the decompression profile in a controlled environment, often with staged pressures and oxygen therapy as needed, rather than trying to re-enter the water or simply proceed with the original in-water schedule. The goal is to off-gas nitrogen safely and reduce bubble formation, which is best managed in a chamber where pressure and gas mixtures can be controlled. The other options would either force you to continue decompression without the appropriate rest in a chamber, ignore the missed stop, or prematurely end decompression—risks that the chamber-based surface decompression procedure is designed to mitigate.