After ascending 10 fsw, what should be done if another symptom occurs?

In the context of managing diving-related issues, particularly those that may arise after an ascent, completing decompression using chamber air is the most appropriate action if another symptom occurs. This approach is aligned with the established procedures for treating decompression sickness or other diving-related ailments.

Using hyperbaric chamber treatment provides an environment where the diver can be safely monitored and treated under controlled pressures, facilitating effective reductions of nitrogen bubbles if decompression sickness is the issue. This controlled environment also allows for the administration of oxygen as necessary, reducing potential complications associated with diving-related symptoms.

Continuing to breathe oxygen until a symptom subsides may not address the underlying problem sufficiently and could allow the condition to worsen without professional intervention. Bringing the diver to the surface immediately may also introduce additional risks, as sudden changes in pressure can exacerbate certain symptoms. Similarly, decreasing depth to the original level does not guarantee safety or address the ongoing symptoms effectively.

Thus, completing decompression in a hyperbaric chamber is a precautionary step that offers a more comprehensive approach to managing divers' health and safety following symptomatic occurrences after ascent.