Posts with the category “dive-safety-tips”
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Dive Boat Safety
July 3rd, 2022
All boat operators should follow a checklist for necessary equipment, including having the required items on board and ensuring they are in working order. Some of these should be easy to spot — life j... Read More
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A Little Detail
July 3rd, 2022
How did I end up with the hematoma? It was a coldwater day for a South Floridian, which is why I chose to wear a thicker wetsuit and hood, which are always stiff. When I descended, I performed the usu... Read More
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Field Neurology for Divers
June 28th, 2022
Diving injuries involving the nervous system, including decompression sickness (DCS), arterial gas embolism (AGE) and ear barotrauma (EBT), are blessedly rare, but when they do happen, these condition... Read More
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Decompression Illness
June 28th, 2022
Decompression illness, or DCI, is associated with a reduction in the ambient pressure surrounding the body. DCI encompasses two diseases, decompression sickness (DCS) and arterial gas embolism (AGE). ... Read More
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What Drowning Really Looks Like
June 28th, 2022
The popular conception of what drowning looks like is not accurate. Unlike this photo, drowning people usually can’t call out for help, and there is very little splashing or waving. Drowning is actual... Read More
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How to Create an Effective Emergency Action Plan (EAP)
June 28th, 2022
The on-call staff at Divers Alert Network® (DAN®) answer more than 2,500 emergency calls each year. In many cases, the outcome may have been better if an effective emergency action plan (EAP) had been... Read More
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Teach your Divers to be Prepared
June 9th, 2022
DAN takes the guesswork out of emergency logistics. Once a member calls the 24/7 hotline, DAN arranges care — including evacuations and complex air travel arrangements if necessary.... Read More
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Rely on Your Emergency Planning
May 30th, 2022
As a busy dive professional, you have to keep track of students and their individual needs, organize training logistics, evaluate water conditions, and keep track of an endless list of safety related ... Read More
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DCS and Denial
May 30th, 2022
DCS is often unpredictable, but regardless of the dive profile, a diver who has symptoms after diving should be evaluated by a doctor. If you ever suspect DCS, trust your instincts and don’t delay — ... Read More
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Be a Great Dive Buddy
May 30th, 2022
Throughout the dive, communication is paramount. Underwater, the pair must communicate clearly, effectively of course, wordlessly. Beyond understanding hand signals, an ideal buddy pair might even be... Read More
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Concussion and Return to Diving
April 7th, 2022
The best recommendation is to focus on your recovery and not resume diving during this period. Determining your seizure risk after your head injury is necessary before consideration for a return to di... Read More
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A Hole in My Heart
April 7th, 2022
During the summer of 2019, our group visited Lake Huron’s Thunder Bay National Marine Sanctuary in Michigan to dive the historic shipwrecks from the late 1800s that rest nearly intact in 160 to 200 fe... Read More
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A Sense of Purpose
April 2nd, 2022
Christy Pattengill-Semmens, Ph.D. As co-executive director of the nonprofit Reef Environmental Education Foundation (REEF) she oversees the Volunteer Fish Survey Project, one of the world’s largest an... Read More
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Pool Operation: Know Before you Go
March 30th, 2022
The challenge is keeping the balance in an ever-changing environment. Any pool built for public use, whether at an aquatic complex or a hotel, should have a certified pool operator (CPO) who has the k... Read More
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Pulmonary Hypertension and Diving
March 30th, 2022
A person’s preexisting condition and exercise intolerance will affect the heart and lungs’ ability to perform underwater. Various factors while underwater lead to intravascular volume shifts to the ce... Read More
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Laryngospasm and Anxiety
March 30th, 2022
If water entered the larynx, the epiglottis’ natural response would be to close the airways to prevent aspiration. The larynx would reflexively trigger coughing to expel the fluid, or you would try to... Read More
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Low-Visibility Diving
March 30th, 2022
It can be a fun experience to dive without seeing anything. When you need to rely totally on your ears and hands, you will be surprised by how quickly your body can adjust to the new situation.
... Read More
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Air and a Spare
March 26th, 2022
If you think a small bailout bottle is right for you, consider a few other issues. Maintenance requirements will be similar to those for a full-sized scuba tank, including hydrostatic testing, so you ... Read More
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Scuba Cylinder Rundown
March 26th, 2022
When choosing an appropriate cylinder size, consider factors such as the cylinder’s weight, your gas consumption rate, anticipated dive profile, personal comfort, and how much gas your buddy may need ... Read More
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When Should the Rescue Begin?
March 26th, 2022
When things go wrong, an effective rescue is vital for a favorable outcome. Most rescue diver courses teach students basic techniques to apply after something goes wrong, but better courses also provi... Read More
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Preventing Breathing gas Contamination
February 5th, 2022
Ask questions and be observant. If you are unsure about the breathing-gas quality at a fill station, ask questions about compressor maintenance, procedures and testing.... Read More
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DIVERS LOSING ACCESS TO EMERGENCY CARE
February 3rd, 2022
The harsh reality is that the percentage of hyperbaric medicine programs introduced during the last decade that are available on a 24/7 basis to treat divers and these other emergent conditions has co... Read More
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UNCERTAINTY AFTER DIVING: Case Report and Recommendations #3
February 3rd, 2022
Diagnosing DCS is generally a process of ruling out other causes. It is imperative that we not discount the possibility of nondiving-related injuries or illnesses just because someone was diving. Howe... Read More
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UNCERTAINTY AFTER DIVING: Case Report and Recommendations #4
February 3rd, 2022
The signs and symptoms of DCS are not exclusive to that condition. However, when a person experiences signs or symptoms after diving, DCS is very often presumed to be the diagnosis. This is not all ba... Read More
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UNCERTAINTY AFTER DIVING: Case Report and Recommendations #2
February 3rd, 2022
Medications can also affect your ability to function normally, regardless of whether you’re on land or underwater. Common seasickness medications, for example, come with advisories stating that they m... Read More
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WOMEN’S HEALTH & DIVING
January 21st, 2022
Men and women, however, are physically and physiologically different. With women representing about third of the recreational diving population — in 2013 the Professional Association of Diving Instru... Read More
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LIONFISH STINGS
January 21st, 2022
Puncture wounds by lionfish can cause pain lasting for several hours, rapid edema (swelling) and subcutaneous bleeding. Swelling typically clears in two to three days, while the tissue discolorations ... Read More
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BACK TO BASICS : UNDERSTANDING DECOMPRESSION ILLNESS
January 18th, 2022
Divers face two types of decompression-related injury: decompression sickness (DCS) and arterial gas embolism (AGE). Collectively, these conditions are often lumped together and referred to as decompr... Read More
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Stacking The Deck
January 18th, 2022
Like the seafaring explorers of old, many in the diving community travel farther, dive deeper and consistently search the horizon and plumb the depths for new adventure. As a group, we are continually... Read More
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Tonga’s Gentle Giants
December 1st, 2021
Humpback whales feed in polar waters during the summer and then migrate to tropical or subtropical waters to breed during winter. Various locations offer seasonal whale-watching, but swimming with the... Read More
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Inspecting and Testing Scuba Cylinders
November 25th, 2021
After cylinders first enter service, an annual visual inspection and a five-year hydrostatic test are required. These requirements include cylinders used for diving and other life-support applications... Read More
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Rescue Skill Modification
November 25th, 2021
Techniques for rescue diving seemed suited for people with a different body type and skill set — at 5 feet, 4 inches tall, I am a petite woman. Practicing rescues was challenging at best and near-impo... Read More
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Sound in the Silence
November 25th, 2021
Audible cues and signals can get your buddy’s attention, signal a group of divers or indicate a problem you can help address. Even though we may dive to escape the noise of everyday life, we need to p... Read More
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DAN SUMMER RESEARCH INTERNSHIP
November 19th, 2021
More than 100 interns over 20years have participated in DAN’s internship programs, working
with established mentors in research, risk mitigation or medicine to gain knowledge and valuable professional... Read More
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Shore Thing A HOW-TO GUIDE FOR ASPIRING BEACH DIVERS
November 19th, 2021
Aside from allowing me to avoid that sunrise alarm, shore diving offers other freedoms as well: the last-minute choice of a dive site, the ability to do two-hour dive without worrying a boat crew and... Read More
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The Deepest Scuba Dive - Part 2
November 18th, 2021
The total dive time was 7hrs and 18mins of which the first 15 minutes was spent on descent to the maximum achieved depth. Once I had safety reached 3m, I was relieved, the dive was almost over and I w... Read More
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6 Simple Steps to Perfect Wide-Angle Lighting
September 5th, 2021
The reason we use a wide angle lense or wet wide-angle lenses is to get as close to our subject as possible to light it well. This doesn’t mean trying to get an entire reef or wreck into the shot, but... Read More
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Lessons Learned While Lost at Sea
August 3rd, 2021
Understand the risks and that there are bad dive shops. I chose this shop because I found them on a dive association’s website as a highly rated dive center. The criteria that I had used to select a s... Read More
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Symbiosis on the Sand
August 2nd, 2021
The close living arrangement between weak-eyed alpheid snapping shrimp and sharp-eyed partner gobies is a classic example of symbiosis in the sea. Goby-associated snapping shrimp are master sand dwell... Read More
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California’s Squid Run
August 2nd, 2021
The dynamic spawning runs occur from April to November in Northern California and from October to May in Southern California. The commercial squid fishing industry concentrates its efforts along the C... Read More
Categories
2022
January
February
UNCERTAINTY AFTER DIVING: Case Report and Recommendations #1.UNCERTAINTY AFTER DIVING: Case Report and Recommendations #2UNCERTAINTY AFTER DIVING: Case Report and Recommendations #3UNCERTAINTY AFTER DIVING: Case Report and Recommendations #4DIVERS LOSING ACCESS TO EMERGENCY CAREPreventing Breathing gas Contamination
March
When Should the Rescue Begin?Celebrating Young and Old in Turks and CaicosScuba Cylinder RundownChasing WeedsUnderwater Smartphone PhotographyAir and a SpareUnderwater Photographer: Fred BuyleBuilding Better BalanceLow-Visibility DivingMore Than a Sore ShoulderNot Only for DivingLaryngospasm and AnxietyPulmonary Hypertension and DivingTitan Meets TitanicPool Operation: Know Before you GoThe Argonaut Octopus and the jellyfishShort but Beautiful Lives
April
A Sense of PurposeMexico’s Sardine RunHigh-Pressure Hose injuriesA Hole in My HeartGoing UpConcussion and Return to DivingMarfan Syndrome Recommendations.South African Sardine Run by Walter BernardisSouth African Sardine Run By ProdiveSardine Run Port Elizabeth by ProDiveSardine Run Port St Johns by ProDiveScuba Diving In MauritiusScuba Diving in TanzaniaScuba Diving in the SeychellesScuba Diving in Nosy BeScuba Diving in MalawiScuba Diving in KenyaScuba Diving in South AfricaScuba Diving in Mozambique
May
June
2021
March
Old Habits Die HardSave a Diver, Save YourselfCylinder SafetyUndercover CrabsReef safe sunscreenPhysics, Biophysics and Decompression SicknessModels and Marine LifeSunscreen and CoralCristina Mittermeier: Commitment to ConservationDiving After a StrokeCurrent DivesThis Bites: Prevention TreatmentEnvironmental Considerations for Disinfection
April
Aqua Pool Noodle ExercisesUnderwater Photographer and DAN Member Madelein Wolfaardt10 Simple Things You Can Do to Improve Your Underwater PhotographyCOVID-19 and Diving: March 2021 UpdateDiver Return After COVID-19 Infection (DRACO): A Longitudinal AssessmentGuidelines for Lifelong Medical Fitness to DiveExperienceFitness Myth or Fitness Fact?The Safety of Sports for Athletes With Implantable Cardioverter-DefibrillatorsCardiovascular Fitness and DivingHypertensionPatent Foramen Ovale (PFO)Headaches and DivingMiddle-Ear Barotrauma (MEBT)O’Neill Grading SystemMask Squeeze (Facial Barotrauma)Sinus BarotraumaInner-Ear Barotrauma (IEBT)Middle-Ear Equalisation