Pilot Medical, Drugs & Scuba Diving Flashcards
At what height is atmospheric pressure halved when compared to sea level?
18000FT
At what depth below sea level is pressure doubled under water?
30FT
Where does nitrogen accumulate in blood when scuba diving?
Blood and soft tissue
What causes “the bends” or decompression sickness and how can it be relieved?
Caused by surfacing too quickly
Relieved by re compressing or in a hyperbaric chamber
How much rest at sea level is required for a dive with no compression stops?
4 hours
How much rest at sea level is required for a dive with compression stops but less than 4 hours?
12 hours
How much rest at sea level is required for a dive with compression stops greater than 4 hours?
48 hours
How long is alcohol still found in blood after consumption?
14 hours
How long is alcohol still found in brain cells after consumption?
24 hours
How does alcohol affect inner ear fluid and hearing?
Changes the specific gravity of fluid affecting balance & hearing in LOW frequency range
Do antihistamines induce drowsiness?
Yes
Is alcohol a depressant?
Yes
How long after taking sleeping tablets should you allow to fly?
24 hours
How can hyperventilation be alleviated?
By re breathing breath eg. into a paper bag
What are analgesics used for?
Temporary pain relief
