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Posts with the tag “alert-diver”

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Demo Divers
March 1st, 2023
By Kyle Kray | Photos from National Navy Seal Museum Most people know the historical significance of D-Day, the infamous day when Allied forces landed on the shores of western Europe on June 6, 1944.M...  Read More
by DAN Team
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Over-the-Counter Medications
April 22nd, 2021
By definition, over-the-counter (OTC) medications are the classification of drugs considered safe for consumer use based solely on their labeling. When used as directed, they present a minimum risk an...  Read More
by DAN Team
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High-Pressure Ophthalmology
April 22nd, 2021
Our eyes normally exist in a world where the pressure around them is the result of the combined weight of all of the gases in the earth’s atmosphere. Diving exposes the eyes to increased pressure. Whi...  Read More
by DAN Team
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Member to Member: Guidelines for Seniors
April 22nd, 2021
As divers get older, DAN® recommends getting annual physicals, staying active and fit, diving within physical limits and avoiding difficult or dangerous diving conditions.There is little concrete advi...  Read More
by DAN Team
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Seasickness Prevention and Treatment
April 22nd, 2021
Some of the world’s best dive sites are accessible only by boat, and unfortunately seasickness prevents some scuba divers from visiting their dream destinations. Unmanaged seasickness will make any bo...  Read More
by DAN Team
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Juggling Physical Exercise and Diving
April 16th, 2021
If you want to dive, you need to be ready. Readiness entails medical, psychological and physical fitness, appropriate knowledge and adequate physical skills. If you exercise regularly at an intensity ...  Read More
by DAN Team
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Risk Factors For Heart Disease
April 16th, 2021
Heart health is essential to the safety of all divers, symptoms of heart conditions are often subtle or easily missed. In some cases, the first indication of a serious cardiac problem may be a heart a...  Read More
by DAN Team
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Health Concerns for Divers Over 50
April 16th, 2021
Getting older doesn’t have to mean give up on diving, but divers over 50 should be aware of common medical issues that may interfere with safe diving. Heart disease, respiratory disease and musculoske...  Read More
by DAN Team
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When to Consult a Health-Care Provider Before Engaging in Physical Activities
April 16th, 2021
Date: 15 December 2013 | Author Petar Denoble MD, DSc. Physical activity (PA) is beneficial for health, but the transition from a sedentary lifestyle to PA or a change in the level of habitual PA may ...  Read More
by DAN Team
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Diving After Bariatric Surgery
April 16th, 2021
I’m an instructor, and I have a student who completed his pool sessions, but he had gastric bypass surgery before he could do his open-water dives. Before I allow him to continue with his training, I’...  Read More
by DAN Team
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Fitness for Diving
April 16th, 2021
There are moments when scuba diving feels effortless: drifting over a shallow reef or descending through clear water toward a sandy bottom. But diving can also be strenuous — when swimming against a c...  Read More
by DAN Team
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Diving after COVID-19: What We Know Today
April 15th, 2021
COVID-19 symptoms range from mild to severe. Some people have no symptoms at all while others require complicated stays in ICUs with ventilatory support to recover. In addition to the impact of the pr...  Read More
by DAN Team
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Scuba Diving and Diabetes
April 15th, 2021
For many years the medical community discouraged people with diabetes from scuba diving. A Divers Alert Network® (DAN®) survey in 1996, however, revealed that nearly 200 of its members were divers wit...  Read More
by DAN Team
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Your Lungs and Diving
April 15th, 2021
Date: 1 May 2017 | Author:By Jack Meintjes, MBChB, DOM, FCPHM(SA) Occ Med, MMed Diving imposes significant challenges to the respiratory system. Lung conditions are among the most common reasons peopl...  Read More
by DAN Team
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Wisdom Tooth Extraction and Diving
April 15th, 2021
Wisdom teeth are permanent molars that usually emerge during the late teens or early twenties. It’s not uncommon for these teeth to be associated with pain or complications. Dentists often recommend h...  Read More
by DAN Team
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Flying After Diving
April 15th, 2021
When flying after diving, the ascent to altitude increases the risk of decompression sickness (DCS) because of the additional reduction in atmospheric pressure. The higher the altitude, the greater th...  Read More
by DAN Team
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Unexpected Weight Loss
April 15th, 2021
A dropped weight belt caused a runaway ascentReported StoryTowards the end of the dive, at about 6 m (20 ft) depth, my weight belt fell off (the buckle came loose from the strap). I exhaled and dumped...  Read More
by DAN Team
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Unintended Rapid Ascent Due to Uncontrolled Inflation
April 15th, 2021
A runaway ascent ends the diving on a liveaboard holidayReported StoryDiving from a liveaboard near a remote island in South America, I was hanging out on a coral ledge at 93 fsw (28 msw) watching Ham...  Read More
by DAN Team
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How to Avoid Rapid Ascents and Arterial Gas Embolism
April 15th, 2021
Decompression illness (DCI) is a term used to describe two conditions: decompression sickness (DCS) and arterial gas embolism (AGE). AGE is one of the most serious medical emergencies a diver may expe...  Read More
by DAN Team
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Top 5 Factors That Increase Your Risk of the Bends
April 15th, 2021
The Bends, also known as decompression sickness (DCS) occurs when nitrogen bubbles form in the blood, often causing severe joint pain. The common name “The Bends” comes from an affected person doublin...  Read More
by DAN Team
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Treating Decompression Sickness (The Bends)
April 15th, 2021
Decompression sickness (DCS) is one of the most common problems reported to Divers Alert Network® (DAN®). Although scuba diving accidents are rare, it’s important to know how to handle suspected cases...  Read More
by DAN Team
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On-Site Neurological Examination
April 15th, 2021
Information regarding an injured diver’s neurological status will be useful to medical personnel not only for deciding the initial course of treatment but also in the effectiveness of treatment. Exami...  Read More
by DAN Team
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Decompression Illness
April 15th, 2021
Author: Ed Thalmann, M.D. Decompression illness, or DCI, is associated with a reduction in the ambient pressure surrounding the body. DCI encompasses two diseases, decompression sickness (DCS) and art...  Read More
by DAN Team
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Alternobaric Vertigo
April 15th, 2021
Alternobaric vertigo occurs during descent, ascent or immediately after surfacing from a dive and is caused by unequal pressure stimulation in each ear.Mechanisms of InjuryDuring an ascent, the air in...  Read More
by DAN Team
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Middle-Ear Equalisation
April 15th, 2021
Middle-ear equalisation is a basic, essential diver skill that equalises the pressure in the sinuses and middle-ear spaces with the ambient pressure. To be a safe diver and avoid middle-ear injuries, ...  Read More
by DAN Team
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Inner-Ear Barotrauma (IEBT)
April 15th, 2021
Inner-ear barotrauma is damage to the inner ear due to pressure differences, usually caused by incomplete or forceful equalisation. A leak of inner-ear fluid (perilymph fistula) may or may not occur. ...  Read More
by DAN Team
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Sinus Barotrauma
April 15th, 2021
Sinus barotraumas are among the most common diving injuries. When the paranasal sinuses fail to equalise to barometric changes during vertical travel, damage to the sinus can cause sharp facial pain w...  Read More
by DAN Team
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O’Neill Grading System
April 15th, 2021
The O’Neill grading system is a way to categorise the severity of middle-ear barotrauma (MEBT). It is simple and is intended to provide consistency in diagnosis with sufficient details to direct treat...  Read More
by DAN Team
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Middle-Ear Barotrauma (MEBT)
April 15th, 2021
Middle-ear barotrauma (ear squeeze) is the most common dive injury. It occurs when pressure in the air space of the middle ear is not equalised to the ambient pressure. It can cause a ruptured eardrum...  Read More
by DAN Team
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Headaches and Diving
April 15th, 2021
Many divers have experienced a headache after a dive with it eventually clearing and no lasting side effects. But when headaches are a recurring issue for divers, that’s when it becomes concerning. To...  Read More
by DAN Team
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Patent Foramen Ovale (PFO)
April 15th, 2021
Patent foramen ovale (PFO) is a common congenital heart defect. It is a hole between the right and left sides of the heart. The foramen ovale is the wall separating the atria. Prior to birth, the fora...  Read More
by DAN Team
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Experience
April 15th, 2021
Date: 16 November 2016 | Author: Karl Shreeves Although it is clear that diving experience reduces divers’ risk of injury, experience is an imprecise term that conjures different ideas in different pe...  Read More
by DAN Team
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Getting Decompression Sickness while Freediving
March 27th, 2020
Over the past few years only a few cases of DCS during freediving have been reported, and they all were associated with repeated deep dives over a short time. Since there is little information, statis...  Read More
by DAN Team
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Conservation Photography
July 16th, 2019
The power to change the world lies with us as users and caretakers of the planet....  Read More
by DAN Team
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Physiology of Decompresssion sickness FAQ
April 10th, 2018
DCS does not typically present with isolated swelling in a small joint such as a finger or toe. As in above-water activities, fingers are susceptible to a wide range of mechanical injuries in diving....  Read More
by DAN Team
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Post Decompression sickness
April 9th, 2018
It is possible that residual sensitivity arising from the decompression insult is responsible for the subsequent symptoms....  Read More
by DAN Team
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Oxygen ears FAQ
April 6th, 2018
Also known as middle-ear oxygen absorption syndrome, oxygen ear describes a gas volume imbalance in the middle ear after diving with breathing gas that has a higher oxygen fraction than air. The pheno...  Read More
by DAN Team
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Inert gas washout FAQ
April 6th, 2018
The deeper and longer the dive, the more gas accumulates. In cases of DCS, the inert gas load exceeds the tissues’ capacity, so bubbles form....  Read More
by DAN Team
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Dive with orbital Implant FAQ
April 6th, 2018
DAN medics and researchers answer your questions about dive medicine.I lost one of my eyes in an accident. I have an opportunity to learn how to scuba dive, but I have heard that I would not be allowe...  Read More
by DAN Team
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Flying after pool diving FAQ
April 6th, 2018
Flying or travel to altitude after diving is a consideration for many divers...  Read More
by DAN Team

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 2023
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