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222 Index A Absolute pressure ......................................................... 102 Activities Clubs ....................................................................... 189 Continuing education ............................................ 189 Special interests ...................................................... 192 Activity, dive ................................................................. 153 Actual dive time (ADT) ............................... 128, 131, 138 Adjusted maximum dive time (AMDT) .............. 128, 132 ADT .........................................See Actual dive time (ADT) Advanced scuba diver course ....................................... 198 Air Characteristics .......................................................... 94 Composition ............................................................. 94 Consumption, depth and ....................................... 105 Embolism ............................................................... 113 Enriched ........................................................... 95, 118 Expansion, diving problems caused by ................. 112 Monitoring supply ............................................ 72, 106 Pressure .................................................................... 99 Sharing with another diver ...................................... 77 Sources, alternate ..................................................... 26 Starvation ....................................................... 115, 165 Air-integrated dive computer ........................................ 28 Alcohol, avoidance of .................................................. 142 Alpha dive flag ............................................................... 44 Alternate air sources ...................................................... 26 Altitude diving .............................................................. 139 Aluminum cylinders ...................................................... 20 Alveoli, effects of pressure on ...................................... 112 Ambient pressure ................................................... 25, 104 AMDT........... See Adjusted maximum dive time (AMDT) Anatomy Lungs ............................................................................ 112 Middle ear ............................................................... 107 Sinuses .................................................................... 110 Apprehension, diving ....................................................... 8 Aquatic life injuries ..................................................... 171 Archimedes principle ..................................................... 97 Artificial respiration, in-water ..................................... 168 Ascents Assisted ...................................................................... 77 Buddy breathing ....................................................... 78 Dependent emergency .............................................. 77 Emergency buoyant ................................................. 79 Emergency swimming ............................................. 79 General procedure .................................................... 75 Independent emergency ........................................... 79 Normal...................................................................... 75 Octopus ..................................................................... 77 Rate of ...................................................................... 75 Assisted ascents .............................................................. 77 Atmospheric pressure ................................................... 101 Audible signals ............................................................... 82 B Back flotation systems ................................................... 33 Back roll entry ............................................................... 63 Backpacks ...................................................................... 24 Backup gear ................................................................. 155 Backup scuba ................................................................. 27 BAR, pressure measurement and ................................ 101 Barotrauma ................................................................. 107 BC ...................................... See Buoyancy control devices Beach entries Calm water ............................................................... 64 Rock .......................................................................... 64 Surf ........................................................................... 64 Beach exits Calm water ............................................................... 66 Rock .......................................................................... 66 Surf ........................................................................... 66 Belt, weight ..................................................36, 58, 60, 86 Bends ....................................See Decompression sickness Biting marine life ........................................................ 185 Blast method of clearing snorkel .................................. 54 Blocks Definition................................................................ 107 Middle ear ....................................................... 107, 109 NAUI Scuba Diver INDEX


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