Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CATA 263 > lecture 19: environmental considerations > Flashcards

lecture 19: environmental considerations Flashcards

1
Q

Density of air decreases progressively with what

A

ascension above sea level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

at higher altitudes, what happnes to the partial pressure of o2

A

decrased partial pressure of ambient oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the 3 altitude considerations

A
  • Density of air decreases progressively with ascension above sea level
  • Decreased partial pressure of ambient oxygen
  • Increases difficulty to deliver oxygen to working muscles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

true or false: at higher altitudes it is easier to deleiver oxygen to working muscles

A

false, it is harder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is acute mounttain sickness

A

hypoxia at high altitudes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how do you get acute mountain sikcness

A

Rapid ascent (<24hours) to altitudes above 8,200ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the SS of acute mountainn sickness

A

4-8 hours after arriving, headache*, dizziness, fatigue, nausea,
vomiting, suppressed appetite, insomnia, dyspnea, decreased
urine output, tachycardia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

why do you get tachycardia in acute mountain sickness

A

heart is pumping more trying to get more oxygen to muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the management of acute mountain sickness

A

reduction in altitude, acclimatization, physical

conditioning, diets high in CHO and low in salt, avoid alcohol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is a secondary complication of acute mountain sickness

A

High altitude cerebral edema or pulmonary edema

=medical emergencies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is hypoatremia

A

low blood Na+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

can you get hypoatremia from execise

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

why can exercising lead to low blood Na+

A

Drinks excessive amounts of water, thus diluting the Na+
content of blood

• Also loss of Na+ through sweat

Arginine vasopressin (aka. Antidiuretic hormone)
• Increased fluid reabsorption
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what are the SS of hypoatremia

A

headache, confusion, nausea, cramping, bloating stomach, LOC
altered, significant mental compromise, swelling in the extremities,
seizures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the heat stress index

A

measure of ambient air temp, humidity and solar radient enerby

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

if there is a higher heat stress index, that increases the risk of what

A

heat related illness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what does black glove temp measure

A

radiant energy temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what does ambient temp measure

A

air temperetaire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what measures all 3 (air temp, humidity and solar radient)

A

wet bulb temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

explain wet bulb temperature

A

temperature recorded by a thermometer bulb

surrounded by a wet wick

21
Q

explain the green flag colour for the WBGT

A

low level of risk playing
less than 18 degrees
r

22
Q

explain the yellow flag colour for the WBGT

A

18-23
moderal risk
risk increases as day goes on

23
Q

explain the red flag colour for the WBGT

A

23-28
high risk
should be aware of complciations, at risk pops should not compete

24
Q

higexplain the black flag colour for the WBGT

A

greater than 28 degrees
extreme or hazordous risk
=consider rescheduling or be on high alert

25
Q

what are heat cramps

A

Painful, involuntary muscle spasms caused by excessive water and
electrolyte loss.

26
Q

what is heat syncompe

A

Heat syncope: is a fainting (syncope) episode or dizziness that usually occurs with
prolonged standing or sudden rising from a sitting or lying position

27
Q

what are some factors that may contribute to heat syncope

A

Factors that may

contribute to heat syncope include dehydration and lack of acclimatization

28
Q

in heat exhasutrion body temp does not exceed what

A

40 degrees

29
Q

in heeat stroke, temp rises to what

A

40.6

30
Q

know the diff bectween heat exaustrion and heat stroke

A

..

31
Q

how many practices should you have 1-5 days during acclimatization

A

1

32
Q

how many practices should you have 6-14 days during acclimatization

A

2 per day only every other eye day

33
Q

what should the equipment be for days 1-2 for heat acclimatization

A

helemts only

34
Q

what should the equipment be for days 3-5 for heat acclimatization

A

helmets and shoulder pads

35
Q

what should the equipment be for days 6-14 for heat acclimatization

A

full equip

36
Q

what should the max duration of the practice be be for days 1-5 for heat acclimatization

A

3 hours

37
Q

what should the max duration of the practice be be for days 6-14 for heat acclimatization

A

3 hours (max 5 hours if double preacice)

38
Q

what should the contact be for days 1-2 for heat acclimatization

A

no contactt

39
Q

what should the contact be for days 3-5 for heat acclimatization

A

contact only with blocking sleds/dummies

40
Q

what should the contact be for days 6-14 for heat acclimatization

A

full 100% contact and live drills

41
Q

what is the treatment for muscle cramps

A
  • Replace lost fluids (sodium containing fluids)

* Mid, passive stretching

42
Q

what is the treatment for heat exhaustrion and stroke

A

• Rapid cooling of the body (approx. 0.2C/minute)
• Gold standard: Ice immersion (1-15C or 35-59F)
• If ice immersion is not available, wet, ice towels, fans, crushed ice packs on
neck, axilla and groin, cool mist machines
• Electrolytes/fluids if person is conscious

43
Q

if ice immersion is not availabl for heat exhaustaion, what should you do instrad

A

• If ice immersion is not available, wet, ice towels, fans, crushed ice packs on
neck, axilla and groin, cool mist machines

44
Q

what is the gold standard tttreatment for heat exhaustrion and stroke

A

ice immesions

45
Q

lihghtning tto thunder occurs withing how long

A

30 s

46
Q

during thundersttorms, under cetrain conditions, activties can contrinue

A

false, in tthunder all outdoor activtiies must end

47
Q

how long should you wait before resoming activtiy after thunersttrom

A

Wait at least 30 minutes after the last sound of thunder or lightning
flash to resume activity

48
Q

what should you do if you are caught outdoors in a tthunderstrtom

A

crouched on the ground, do not lie flat on the

ground

CATA 263 (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions