Nitrogen narcosis can lead to deadly consequences. Understanding the risk factors and ensuring that you and your dive buddies have discussed how to mitigate risk can potentially save lives. If you are stung by a jellyfish, watch for symptoms associated with Irukandji syndrome. If symptoms develop, know that it is a potentially deadly condition that doctors can help treat. Pay attention to local marine life bulletins and announcements. The best ways to mitigate jellyfish envenomation risk are to wear full exposure suits and avoid jellyfish when they are prevalent in the water.
Reduced exercise tolerance is common for those with chronic obstructive pulmonary disease and poses risks for diving. There can be strenuous activity involved with managing currents, swimming on the surface in choppy seas or pulling yourself and your heavy gear up a ladder and onto an unsteady boat. With COPD, shortness of breath during exertion doesn’t mean you are out of shape; it means you cannot rid your body of carbon dioxide and replace it with the oxygen needed to meet the demand of your exertion.
Sometimes life gets in the way — family obligations, unforeseen injuries, work responsibilities, social events — or perhaps the world as we know it shuts down for a while. When these things overwhelm us, many people tend to sacrifice exercise first. You may miss a few workouts, and then your exercise routine slowly slips from regular to nonexistent. It happens to most people — even fitness experts and professional athletes — at some time. Although it may feel challenging, it is possible to restart your exercise routine.
Our checkout dive was easy, with a maximum depth of 75 feet for 50 minutes. The current was slight, and the visibility was spectacular — an ideal first dive. It closed with a nice, slow ascent and a three-minute safety stop. When we returned to the boat, I felt a sudden tingling in my right foot followed by a dull ache in my knee. I assumed the worst, thinking I had decompression sickness (DCS). When I reviewed the dive in my mind, however, that seemed impossible.
Shipwrecks lure divers as much as they attract the sea life surrounding them. The spectacle of life on a wreck, an ecosystem unto itself, is often the main attraction for divers. Nearly every ocean, sea and lake holds a world of shipwreck exploration for advanced open-water divers. Each lost ship, submarine, airplane and even the odd locomotive is a time capsule waiting for an underwater explorer to visit and photograph. Never venture inside a shipwreck until you have advanced wreck-dive training from a certified, qualified dive training professional.
A DAN member shares lessons learned while lost at sea for many hours after being carried far from the dive site by currents. It’s important to stay calm and bring your own safety gear such as a surface marker buoy. Before leaving on a trip, establish good physical fitness and always let someone know where you are and when to expect you. Understand the risks, be proactive about your safety, and don’t ignore red flags about the dive operator.
The newly reorganized DAN Safety Services department combines the prevention focus of our risk mitigation efforts with the incident-response aspect of our first aid courses and safety products. Everyone in the dive industry — students, divers, and dive professionals and operators — can access DAN’s wealth of educational, training and safety product options to help keep themselves and their fellow divers safe.
After taking time away from diving, whether for a few months or even longer, divers should assess several essential factors to help them safely get back in the water. DAN’s new Return to Diving initiative is a comprehensive, practical guide developed by dive medicine physicians, scientists and researchers to provide the knowledge needed to make informed decisions. The guide contains six sections, each with detailed step-by-step instructions and tips. Topics include issues stemming from inactivity, your health status, fitness to dive, equipment, dive skills and travel plans.
Many divers love to travel. As more destinations open to travelers, divers are eager to get back in the water at their favorite site or a new location. Read these tips for traveling with scuba equipment and planning ahead to determine what vaccinations and medical documentation your destination requires.