What does decompression sickness do?

Decompression sickness is a disorder in which nitrogen dissolved in the blood and tissues by high pressure forms bubbles as pressure decreases. Symptoms can include fatigue and pain in muscles and joints.

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People also ask, how does decompression sickness affect the body?

The bends, also known as decompression sickness (DCS) or Caisson disease, occurs in scuba divers or high altitude or aerospace events when dissolved gases (mainly nitrogen) come out of solution in bubbles and can affect just about any body area including joints, lung, heart, skin and brain.

Secondly, at what depth does decompression sickness occur? Symptoms of decompression illness can occur within minutes and up to 24 hours or more after exposure to changes in ambient pressure associated with dives of 20 feet in depth or more. The severity of symptoms depends on the rate and the magnitude of the change of ambient pressure and can vary among individuals.

Also to know is, how long does decompression sickness last?

If there are neurological symptoms, the diver may resume diving two to four weeks after treatment, depending on symptom severity. For very severe symptoms, the diver must be reevaluated three months after treatment and cleared by a Diving Medical Officer.

What are the effects of the bends?

The bends can affect almost any area of the body or any organ, including the lungs, heart, brain, joints, and skin. The most common signs and symptoms of the bends include joint pains, fatigue, low back pain, paralysis or numbness of the legs, and weakness or numbness in the arms.

Related Question Answers

Will mild decompression sickness go away?

However, In many cases of decompression illness the symptoms are only minor, such as: joint pain, numbness or tingling and muscular weakness. Sometimes these symptoms remain mild and go away by themselves, however, they often continue to persist or even increase in severity and medical advice will need to be sought.

Can you get decompression sickness in a pool?

Decompression sickness is not totally dependent on deep/long dives. Uncontrolled or even controlled successive ascents in a short period, such as those experienced during pool training, can cause microbubbles to form in the blood stream, leading to DCI.

How common is decompression sickness?

Epidemiology. The incidence of decompression sickness is rare, estimated at 2.8 cases per 10,000 dives, with the risk 2.6 times greater for males than females. DCS affects approximately 1,000 U.S. scuba divers per year.

What should you not do after scuba diving?

Things you shouldn't do after diving

• Fly. Flying after diving is a well-known risk to divers.
• Drink heavily. There might be nothing better than an ice-cold beer after diving, but drinking alcohol after diving is not recommended.
• Climb a mountain. Many scuba divers are real adrenaline junkies and love all outdoor sports.

What are the long term effects of decompression sickness?

The more severe type of decompression sickness most commonly results in neurologic symptoms, which range from mild numbness to paralysis and death.

Type II decompression sickness (more severe)

• Headache.
• Confusion.
• Trouble speaking.
• Double vision.

How do you know if you have decompression sickness?

Symptoms of decompression sickness include:

1. Joint pain.
2. Dizziness.
3. Headache.
4. Difficulty thinking clearly.
5. Extreme fatigue.
6. Tingling or numbness.
7. Weakness in arms or legs.
8. A skin rash.

What does the bends feel like?

The pain associated with the bends usually feels like a dull ache, but can be much more severe, like a stabbing sensation. This painful sensation can also occur in other parts of the body, including the ear, the spinal cord, the lungs, the brain or the skin.

How do you test for decompression sickness?

Acute decompression sickness (DCS) is a purely clinical diagnosis that requires a fair amount of clinical suspicion to avoid missing cases. Most of the time, the "test" is improvement with hyperbaric oxygen (HBO) therapy. No specific tests exist for DCS.

Why do they call it the bends?

Decompression sickness (DCS), known as 'the bends' because of the associated joint pain, is a potentially deadly condition caused by bubbles of nitrogen gas forming in the blood and tissues. It's most common among divers using scuba tanks, but can affect free-divers and people at high altitude.

What happens if decompression sickness goes untreated?

Type II DCS Divers suffering this type can face tremendous complications. When nitrogen bubbles enter the nervous system, the entire body can be affected, at times one area more than others. If the present symptoms go untreated, paralysis or even death are possible.

Does diving cause brain damage?

Does Diving Damage the Brain? It is well known that compressed gas diving may result in acute decompression sickness and cause permanent injury to the brain and spinal cord. However, the risk of possible injury to the brain in the absence of acute decompression illness is less clear.

Can you get the bends at 30 feet?

While sometimes there may be predisposing medical factors such as patent foramen ovale, divers must still treat shallow dives with as much care and respect as any other dive. If you're one of those divers who was taught that "you can't get bent shallower than 30 feet," it's time to revise the theory.

Can you get decompression sickness from flying?

Altitude DCS is a risk every time you fly in an unpressurized aircraft above 18,000 feet (or at lower altitude if you SCUBA dive prior to the flight). Even if you are flying a pressurized aircraft, altitude DCS can occur as a result of sudden loss of cabin pressure (inflight rapid decompression).

How can you reduce the risk of decompression sickness?

Here's a look at some of the best tips we've come across to avoid decompression sickness and minimize the risk of ever experiencing it ourselves:

1. Plan,Plan, Plan.
2. Don't dive drunk or high.
3. Stay hydrated.
4. Adhere to safety stops and a slow ascent rate.
5. Don't fly immediately after diving.

How deep can you dive without having to decompress?

A diver at 6 metres (20 ft) may be able to dive for many hours without needing to do decompression stops. At depths greater than 40 metres (130 ft), a diver may have only a few minutes at the deepest part of the dive before decompression stops are needed.

What is the most common diving emergency?

The most common issues reported via email and Divers Alert Network's Emergency Hotline last year were:

• #1 Ear and Pulmonary Barotrauma.
• #1 EAR AND PULMONARY BAROTRAUMA.
• Pulmonary barotrauma is a lung overexpansion injury that typically occurs when a diver fails to exhale properly, or holds their breath during ascent.

How do you prevent bends?

Remember, the ascent from safety stop to the boat is the most critical distance of your ascent, so go slow. Keep warm during and between dives. Being cold changes your body circulation, which is thought to affect how quickly and efficiently you eliminate excess nitrogen. Don't ignore symptoms.

How deep can a human dive?

Deep Diving is any dive deeper than 20 meters (60 feet). However there are different kinds of diving which gives deep diving its own specific definition. In Recreational diving, the maximum depth limit is 40 meters (130 feet). In technical diving, a dive deeper than 60 meters (200 feet) is described as a deep dive.

Why don t scuba divers fill their tanks with pure oxygen?

No! Oxygen becomes rapidly toxic at depth – prolonged exposure to pure oxygen below a few metres can kill you. It is not an appropriate scuba tank gas mixture. Technical divers use pure oxygen on carefully-calculated decompression dives, but this is beyond the scope of recreational diving and should not be attempted.