Ross - Altitude

Question 1

at what altitude does increased ventilation begin

Answer 1

4921

Question 2

normal physiologic response to acclimatize

Answer 2

peripheral vasoconstriction → triggers baroreceptors → suprresses ADH/aldo → diuresis

Question 3

normal sx of altitude (4)

Answer 3

exertional dyspnea

diuresis → decreased stroke volume

nocturnal periodic breathing

night awakening/weird dreams

Question 4

4 high altitude syndromes

Answer 4

acute hypoxia

acute mountain sickness

HACE

HAPE

Question 5

3 at risk pops for altitude syndromes

Answer 5

previous AMS

rapid ascent

decreased respiratory reserve

Question 6

sx of acute mountain sickness

Answer 6

HA

GI

dizzy

sleep disturbance

Question 7

can you have acute mountain sickness w.o ascent

Answer 7

nope

Question 8

4 tx for acute mountain sickness

Answer 8

O2

descent

acetazolamide

+/- pressure bag

Question 9

ataxia, extreme weakness, AMS, +/- personality changes

Answer 9

HACE

Question 10

tx for HACE (5)

Answer 10

O2

descent

acetazolamide

dexamethasone

hyperbaric chamber

Question 11

non cariogenic edema, dry cough, decreased exercise tolerance

Answer 11

HAPE

Question 12

what altitude does HAPE start at

Answer 12

8200

Question 13

what is this showing

Answer 13

pulmonary edema

Question 14

tx for HAPE

Answer 14

O2/CPAP

descent

minimize exertion/cold exposure

nifedipine/acetazolamide/sildenafil

hyperbaric chamber

Question 15

exposure to altitude not recommended in what 5 dz states

Answer 15

CHF

COPD

sickle cell

pHTN

HTN

Question 16

tx for all AMS in altitude d.o

Answer 16

steroids