What are the main causes of injury when diving?
The most common injury in divers is ear barotrauma (Box 3-03). On descent, failure to equalize pressure changes within the middle ear space creates a pressure gradient across the eardrum.
What should divers do for their own safety?
For their own safety, divers should:
- Always display the diver-down flag and stay close to the flag.
- Use a stable boat that is suited for diving and anchor the boat securely.
- Avoid overloading the vessel with people, equipment, or supplies.
- Never dive or snorkel alone.
How do I prepare myself for scuba diving?
Before You Go Scuba Diving
- Make Sure You Are Certified to Dive. …
- Make Sure You’re Fit to Dive. …
- Dive With a Certified Diving School. …
- Listen to Your Instructor or Dive Guide. …
- Double Check All Your Scuba Gear. …
- Make Sure You Do Your Buddy Check. …
- Have Scuba Diving and Travel Insurance.
Does diving damage the brain?
Acute decompression illness (DCI) involving the brain (Cerebral DCI) is one of the most serious forms of diving-related injuries which may leave residual brain damage. Cerebral DCI occurs in compressed air and in breath-hold divers, likewise.
What happens if you puke while scuba diving?
The vomit will be forced out the regulator in the same way your exhaled breath is. Nothing will get into your air supply because air does not flow back into your cylinder. Inhale carefully so you don’t suck food particles into your throat.
What is a good safety precaution when fueling your boat?
Shut off all fuel valves and extinguish all open flames, such as galley stoves and pilot lights. Close all windows, ports, doors, and other openings to prevent fumes from entering the boat. Remove portable fuel tanks from the boat and fill them on the dock. Make sure that your fire extinguisher is within reach.
How can propeller strike accidents be avoided?
How to Prevent a Propeller Strike Accident:
- Never operate your boat near ANYONE in the water—including swimmers, divers, skiers, etc.
- Always shut down your engine while passengers are entering or exiting the boat.
- Make sure your passengers are seated before getting underway.
How can you prevent static sparks while filling your boat’s fuel tank?
While filling the fuel tank: Keep the nozzle of the fuel-pump hose in solid contact with the tank opening to prevent producing a static spark. Use caution and fill the tank slowly to avoid spilling fuel into the boat’s bilge or into the water. Use an oil-absorbent pad to catch drips or spills.
Can a first timer do scuba diving?
A professional PADI instructor will take you diving. With your very first time in the open ocean your instructor will always be very close to you, possibly even holding your hand, tank or BCD. The depth of your first dive will be shallow for safety reasons (10 to 12 Meters/33 to 39 feet maximum depth).
What do you see when diving?
Blue holes — massive sinkholes or caverns usually set in open water — are known for their unique appearance from the surface. These impressions can continue for hundreds of feet — with famous examples in the Bahamas, Belize and China — giving divers a feeling of escape as they descend into the blue darkness.
Is scuba diving unhealthy?
Can I be seriously hurt while scuba diving? Yes. The most dangerous medical problems are barotrauma to the lungs and decompression sickness, also called “the bends.” Barotrauma occurs when you are rising to the surface of the water (ascent) and gas inside the lungs expands, hurting surrounding body tissues.
Why do I get so tired after scuba diving?
SO WHAT CAUSES FATIGUE AFTER A DIVE? Diving is work, no matter how much fun it is. Thermal stress, decompression stress, exercise, prolonged oxygen exposure, anxiety and seasickness can all contribute to leaving you exhausted after a relaxing dive.
Why do I get headaches when I scuba dive?
The carbon dioxide headache, one of the most common for divers, is caused by an increase in the body’s carbon dioxide level, which stimulates receptors in the brain’s blood vessels. An increase in the brain’s blood flow to these receptors leads to headaches.