Posts with the category “alert-diver-winter-editions”
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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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UNCERTAINTY AFTER DIVING: Case Report and Recommendations #1.
February 3rd, 2022
Books and articles about DCS usually include an extensive list of signs and symptoms. It is important to remember that none of the signs and symptoms in any such list is exclusive to DCS. ... Read More
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MARINE ENVENOMATIONS: Jellyfish & Hydroid Stings
January 21st, 2022
Anaphylaxis is a potentially deadly allergic reaction that can involve respiratory distress, airway compromise and other unstable vital signs. If anaphylaxis occurs, immediately administer epinephrin... 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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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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On a Mission: Critter hunting in Washington’s Salish Sea
November 30th, 2021
There’s a big difference between casual, submerged sightseeing — happy-snapping pictures of whatever you run across while blowing bubbles — and diving dedicated to carefully searching select sites, so... 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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Answering the Call
November 25th, 2021
In Wild Seas, his new book published by National Geographic, Thomas Peschak ponders his career path: “My life as a National Geographic photographer has been socially isolating, emotionally exhausting ... Read More
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Celebrating Seagrass
November 25th, 2021
The benefits of protecting seagrass cannot be overstated. Seagrass purifies the water, helps protect against coastal erosion, helps sustain small-scale fisheries that support communities, and increase... Read More
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Photography in the Plimsoll Interface
November 23rd, 2021
Underwater photographers sometimes refer to the narrow water zone where a subject splits the surface as the Plimsoll interface. Opportunities abound here for dynamic shots achieved by angling the came... Read More
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Immature Blood cells
November 19th, 2021
Platelets are components within our blood responsible for beginning clotting. Decreased platelets will inhibit clotting, which may lead to uncontrolled bleeding. If you have bleeding from blunt or pen... Read More
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PFO CONCERNS IN DIVE INJURY TREATMENT
November 19th, 2021
A PFO is undoubtedly a concern with diving because about 25 percent of the population has one. The recovery position supports and maintains an open airway in an
unconscious person or injured diver. ... 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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It Can Happen to Anyone
November 19th, 2021
Our divemaster immediately gave me 100 percent oxygen and notified the captain. We quickly returned to the resort dock. At some point during the ride back they had called to shore and contacted DAN, w... Read More
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The Blue Desert Conundrum
November 19th, 2021
Crystal-clear, nutrient-richwaters may exist in polar seas in the darkness of winter, but elsewhere nutrients in the presence of sunlight nourish phytoplankton, which turns the water green with chloro... Read More
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Seeking an Octopus
November 19th, 2021
New data can show that we aren’t quite as good at understanding nature as we think. New findings can cause us to reassess what we think we know about the beautiful and immensely enigmatic underwater w... Read More
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Introduction to Swim Fitness
November 19th, 2021
Maintaining a balance of physical, social and emotional wellness has become a challenge for many in the age of COVID-19.Exercising in water can increase cardiac function, reduce blood pressure and imp... 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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Pack Your Camera Equipment for a Dive Trip
July 13th, 2021
There is simply no way one can risk packing your valuable camera equipment into your check-in bags! Which means you must pack your expensive, valuable, fragile camera equipment into your hand luggage... Read More
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How to Take Great Photos of Divers
June 12th, 2021
Get your buoyancy right before you take your camera underwater. You cannot take photos if you are flapping around trying to stay afloat or if you are constantly inflating and deflating your BCD. If yo... Read More
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Aqua Pool Noodle Exercises
April 1st, 2021
Exercising in water can be a great way to mix up your routine. The water supports your body
and ensures low impact despite intense exercise. The effects of gravity are less profound in the water, so y... Read More
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Environmental Considerations for Disinfection
March 22nd, 2021
Divers, dive operators and dive professionals must continue to practice good hygiene and disinfection of scuba equipment during the COVID-19 pandemic. Disinfectant products kill microorganisms. When d... Read More
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This Bites: Prevention Treatment
March 22nd, 2021
Moray eels are the largest eel species, and they are known to produce toxins, which can be found in their mouths. Temporary paralysis of the bitten area can occur. Eels have an impressive mouthful of... Read More
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Current Dives
March 12th, 2021
Diving in currents can be exhilarating, but it can also be hazardous if you do not have the proper training or are unprepared. To get the most enjoyment, perform proper predive research and dive plann... Read More
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Cristina Mittermeier: Commitment to Conservation
March 4th, 2021
Photographer Cristina Mittermeier’s social media posts have insightful captions that reveal her deep commitment to ocean ecology issues. Telling stories that inspire, engage and ultimately motivate ac... Read More
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Diving After a Stroke
March 4th, 2021
Carefully weigh your return to diving, and assess the risk versus reward. No studies are available that address if the areas of your brain damaged by your stroke will be more susceptible to decompress... Read More
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Models and Marine Life
March 3rd, 2021
Underwater photographers usually evolve a specialty, but the first fork in their road typically involves defining an interest in either photographing natural history — marine life in particular — or c... Read More
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Physics, Biophysics and Decompression Sickness
March 3rd, 2021
Meiners and his team are currently working on tissue mechanics and tissue damage through gas bubbles in the spinal cord, or spinal cord decompression sickness.... Read More
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Undercover Crabs
March 1st, 2021
The crabs manipulate the purloined pieces of attire with their mouths before attaching them to one of the many fishhook-shaped bristles arranged in rows on the carapace, rostrum, walking legs and claw... Read More
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Cylinder Safety
March 1st, 2021
Every year fires and ruptures in scuba, rebreather and oxygen cylinders occur. These incidents destroy property and injure, maim and even cause the death of cylinder filling-station operators as well ... Read More
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Save a Diver, Save Yourself
March 1st, 2021
The lessons learned in a rescue diver course may help you save your buddy or a fellow diver, as well as improve your ability to recognize and respond to your own situation... Read More
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Old Habits Die Hard
March 1st, 2021
Make it your standard practice to gently and completely turn on your air. If you’re an instructor, consider not teaching students the quarter-turn back. Dive operations should instruct their staff not... 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