After completing a series of three dives, what is the ending pressure group if the dives were: 95 ft for 19 minutes, 60 ft for 20 minutes, and 40 ft for 45 minutes?

To determine the ending pressure group after completing the dives, it is essential to consult the Universal Mariner and Diving tables or equivalent dive tables that provide guidance on how to calculate residual nitrogen and allowable limits based on depth and time.

In this scenario, the diver completes three dives at varying depths and durations. The first dive is 95 feet for 19 minutes, which incurs a notable amount of nitrogen loading due to the depth and time spent underwater. The second dive at 60 feet for 20 minutes adds additional nitrogen loading, although to a somewhat lesser extent compared to the first dive. The final dive at 40 feet for 45 minutes further contributes to nitrogen absorption, albeit at a reduced risk since the depth is shallower and the time is longer.

When combining the data from all three dives, the tables would indicate that the diver's residual nitrogen limits would place them in pressure group "P" based on the accumulated nitrogen from the total dive profile. This grouping reflects both the depth and the varying exposure times, culminating in a calculated ending pressure group that takes into account the dive sequence.

It is important to monitor such profiles appropriately to avoid the risks of decompression sickness, being that the ending pressure group serves as a guideline for future dives