Scuba Diving Guide on How to Prevent the Bends
The
water sport – Scuba Diving is gaining a lot of
popularity. When it comes to staying safe, knowledge is the key. As a scuba
diving enthusiast, you must know your abilities, limits and must always be
prepared for emergency situations.
A
common health problem associated with scuba diving is Decompression Sickness
(DCS), also referred to as ‘the bends’, ‘Divers Disease’ or ‘Caisson Disease’.
In this condition, nitrogen in blood and tissues forms bubbles and block the
blood flow. The bubbles are a result of the pressure difference one experiences
from one environment to the other. They can form when a person ascends from a
high-pressure environment (water) to low a pressure environment (surface).
One
of the first and most common symptoms is the joint pain (arm or leg). The pain
starts mildly and may progress slowly and become severe. Other symptoms of
bends in scuba diving are itchy skin, unusual fatigue, dizziness, numbness, and
shortness of breath.
Treatment:
Decompression
sickness is treated in a pressure chamber. Once the patient is in the chamber,
increased pressure helps in providing relief. Then, the pressure is gradually
decreased to match the outside air pressure. Bends demand prompt treatment. In
the absence of right treatment at the right time (i.e. immediate 100% Oxygen Intake
when back on the boat), they may cause serious and lasting injuries.
Consider the following tips
to prevent the bends in scuba diving:
Does a safety stop: One of the basic things
that can prevent a Nitrogen bubble is the added time during a safety stop? Divers are recommended
to make a safety stop of 3 to 5 minutes between 15 to 20 feet at the end of a
dive.
Always slowly ascent to the
surface: Do
not ascent faster than the smallest bubbles coming out of your regulator so the
nitrogen is slowly released from the tissues back in your blood circulation
allowing for a safe off gassing.
Follow safety guidelines: Dive tables and computers
must be used to prevent the bends. They provide safety guidelines with respect
to the multi-level depth profile of a dive and the respective dive times at
each depth. A dive computer also helps to ensure low ascent rate.
Stay Hydrated and avoid
alcohol over consumption: Lack of hydration is a common cause of bends. Dehydration
slows down the process of nitrogen removal from the body. Alcohol intoxication
dehydrates the body and increases the risk of DCS
Avoid diving when sick: Diving under illness or
injury compromises one’s performance
underwater and increases the risk of decompression illness.
Don’t fly immediately after
diving:
When diving on vacation, ensure you plan your dives in advance. In planes, the
air pressure in the cabin is comparatively lower, so plan your flights at least
24 hours after your last dive.
Do not run out of the air: Keep on checking your air
supply during the dive. A rapid ascent or missed safety stop due to a lack of
air left in your tank will increase the risk of DCS.
While
these are some precaution tips to prevent the bends in scuba diving, the most
important rule is to never dive beyond your training or experience level. It is
very important that you get the right preparation & education with the
right professionals so you avoid panic reactions in unprepared situations that
might lead to Nitrogen Bubble formation due to a rapid ascent.
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