SCUBA lady Flashcards
1
Q
what happen to P at 33 ft
A
doubled - 1ATM added
2
Q
what happens to pp of N2 with depth
A
goes up
3
Q
what happens in N2 narcosis
A
being to feel giddy and drunk
4
Q
2 ways to avoid N2 narcosis
A
- don’t go as deep
2. take less N2
5
Q
how does decompression sickness occur
A
- high P N2 is dissolved in tissue
- if come up too quickly, can’t get rid of undissolving N2
- get N2 bubbles
6
Q
4 ways to avoid the bends
A
- less depth
- less time at depth
- ascend slowly
- shallower second dive
7
Q
what happens in barotrauma
A
quick ascent leads to increasing volumes – explode
8
Q
what PaO2 would you see in CO poisoning
A
90 - normal, but can’t pick it up
9
Q
treatment of CO poisoning
A
O2 – a LOT
10
Q
what is PAO2 at base camp
A
20
11
Q
what is PAO2 at summit
A
-7
12
Q
how to get around PAO2 at summit
A
hyperventilate to decrease PaCO2
13
Q
what is high altitude pulmonary edema
A
fluid filling lungs
14
Q
how to prevent high altitude pulmonary edema
A
- go up slow
- return when symptoms start
- O2
15
Q
2 things limiting excercise
A
- O2 supply and demand
2. lactic acid
