Altitude And Depth Flashcards
1
Q
What happens the higher up you go?
A
P atm falls
Pi O2 falls
FiO2 stays the same
2
Q
What Is the physiological response to altitude?
A
Hypoxia ——> hyperventilation Decreased PaCO2 Increased minute ventilation Increased heart rate Increased blood pH (temporary alkalosis, countered by metabolic HCO3 excreting)
3
Q
What are 2 high altitude illness?
A
Acute mountain sickness
High altitude Pulmonary oedema
4
Q
Acute mountain sickness
What type of people is it found in?
Symptoms?
Treatment?
A
Younger people
Headache and one other symptom (legarthy, shortness of breath)
Only treatment is DESCENT
5
Q
High altitude pulmonary oedema
What type of people is it found in?
Treatment?
A
Unacclimated people
O2 + DESCENT treatment
6
Q
Every 10m water=….
A
1 atm
7
Q
Boyles law?
A
P1 x V1 = P2 x V2
8
Q
Dalton’s law?
A
Pt = PPa + PPb ….
9
Q
Henry’s law?
A
Volume of gas dissolved in liquid at x degrees is proportional to PP gas
10
Q
Examples of pathology at depth?
A
Decompression sickness (N2) Inert gas narcosis CNS O2 toxicity Arterial gas embolism Pulmonary barotrauma
