Two cases of postdive symptoms likely caused by contaminated gas. Predive checks and proper equipment maintenance may help to mitigate risk
Being stranded at sea is psychologically taxing as well as physically demanding. Hazardous marine life encounters, dehydration, exhaustion and hypothermia are all possible life-threatening scenarios.
An experienced diver with an underwater scooter saves an unprepared diver who overbreathed his regulator and attempted an emergency ascent.
Problems with pressure equalization in the middle ear are very common in diving and may result in barotrauma, which is the most common diving injury.
With any injury in the marine environment that penetrates the skin, medical evaluation and treatment are essential. Documentation indicates that seal bites in particular have a very high probability of infection.
There were plenty of warning signs for this diver. He probably had difficulty climbing a few steps of stairs in everyday life, and that is sufficient indication of poor physical fitness.
Heavy seas create problems for a diabetic diver who nearly drowns after a ladder hits his head.
Vertigo is a feeling that you or your surroundings are moving when there is no actual movement. The time of symptom onset after the dive increases the probability that it was caused by the dive.
A reverse block can happen even when everything else went well in a dive and this diver followed the correct procedure by re-descending to take the pressure off.
This incident serves to remind all divers wearing double tanks to tweak-down their wing-nuts when attaching a back-plate and wing.