Deep Diving What is deep diving Planning Considerations

Deep Diving • • • What is deep diving? Planning Considerations Narcosis Decompression Sickness Equipment USCG Duane

Deep Diving • Deep diving definition • The Maximum Recreational limit • Technical Diving

Deep Diving • Reasons for deep diving • Extending depth limits • Stress

Deep Diving Additional Considerations • Safety stops • Emergency procedures • Surface support • Buddy techniques

Planning Considerations • • Shorter bottom times Density Air Consumption No-Decompression Limits

Nitrogen Narcosis • • What is narcosis? Effects Concerns Prevention

Nitrogen Narcosis Evaluation • Timed math problems – Surface – At depth

Decompression Sickness • The “Bends” • Caisson Disease – What causes DCS? – Contributing Factors

Decompression Sickness Symptoms • • Pain in joints Weakness Skin Rash Numbness Vomiting Visual disturbances Tingling Dizziness • • Decreased sensation Paralysis Unconsciousness Extreme Fatigue Headache Ringing Ears Muscle pain Personality change

Decompression Sickness • Symptom Onset • First Aid • Hyperbaric Treatment

Decompression Sickness Prevention • • • Dive Planning Table use/dive computer No-Decompression Limits Bottom times Ascent Rates

Deep Diving Gear • • • Suitable Regulator SPG Timing and Depth Redundant supply Additional Tanks Descent Line

Deep Dive - USCG Duane • • • Commissioned 1936 De-Commissioned 1985 Sunk 1987 – Artificial Reef 327 ft. long Cost $2, 468, 460 Lies in 130 fsw

Deep Dive - Duane • • Max Depth-110 Max Bottom Time-15 min Ascent Pressure-1200 psi Ascent Time- 12 min

Deep Dive Duane • Entry • Descent • The Dive – Groups, Currents, Goals • Emergency Procedures

Deep Dive Duane • • Ascent Safety Stop Boarding the boat Roll Call

Deep Diving - End • • • What is deep diving? Planning Considerations Narcosis Decompression Sickness Equipment USCG Duane