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HL10521 Human Physiology > Practical lab classes-breathing > Flashcards

Practical lab classes-breathing Flashcards

1
Q

What is tidal volume?

A

The amount of air that moves in or out of the lungs with every respiratory cycle

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2
Q

What is inspiratory reserve volume?

A

The additional air that could be inspired at the end of a normal/tidal inspiration

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3
Q

What is expiratory reserve volume?

A

The additional air (above tidal volume) that could be expired at the end of a normal expiration

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4
Q

What is vital capacity?

A

The volume of exhaled air after a maximal inhalation

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5
Q

What can be added together to calculate vital capacity?

A

Inspiraory reserve volume, tidal volume and expiratory reserve volume

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6
Q

What is IRV?

A

Inspiratory Reserve Volume

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7
Q

What is TV?

A

Tidal Volume

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8
Q

What is ERV?

A

Expiratory reserve volume

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9
Q

What is VC?

A

Vital capacity

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10
Q

What is residual volume?

A

The volume of air remaining in the lungs after a maximal forceful expiration

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11
Q

What are the two types of spirometry tests?

A

Forced vital capacity and maximum volunrary ventilation

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12
Q

What is MVV (abbreviation)?

A

Maximal Voluntary Ventilation

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13
Q

What is MVV (definition)?

A

Maximum volume of air that can be moved by voluntary effort in one minute

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14
Q

What is PEF (abbreviation)?

A

Peak expiratory flow

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15
Q

What does RV mean?

A

Residual volume

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16
Q

What do the results of a flow flow volume loop contain?

A

PEF, FRV1 and FVC

17
Q

What does total lung capacity equal?

A

IRV+TV+ERV+RV

18
Q

How is a forced vital capacity test done?

A

Maximum inhalation, insert mouthpiece, maximum forceful inhalation for 6 sec then a big breath in

19
Q

How is a MVV done?

A

Maximally breathe in and out for 15 seconds with a mouthpiece in

20
Q

What is the MVV of males?

A

80-200L/min

21
Q

What is the MVV of females?

A

60-160 L/min

22
Q

What are douglas bags used for?

A

Collecting expired air at rest or at key stages during exercise

23
Q

What gas is higher in concentration in expired air than inspired air?

A

CO2

24
Q

What gas is lower in concentration in expired air than inspired air?

A

O2

25
Q

What is Boyle’s law?

A

Pressure is inversely proportional to volume (of gases)

26
Q

What is Charles’ law?

A

Temperature is proportional to volume (of gases)

27
Q

What effect does temperature have on gas pressure due to water vapour?

A

It causes the gas pressure to increases as the temp increases

28
Q

What is ATPS?

A

Ambient Temperature and Pressure Saturated with Water Vapour

29
Q

What is SWVP?

A

Saturated Water Vapour Pressure

30
Q

What is STPD?

A

Standard Temperature and Pressure for a Dry Gas

31
Q

What is the Haldane Transformation?

A

The assumption that only O2 and CO2 are exchanged in the lungs

32
Q

What is assumes about non O2/CO2 gases in the Haldane Transformation?

A

They have the same volume in both inspiratory and expiratory gases

33
Q

What is the haldane transformation use to caculate?

A

VI from VE

34
Q

What property does N2 have that means the mass inspired is the same as expired?

A

It is metabolically inert

35
Q

What is FIN2 in the haldane transformation?

A

Fraction inspired nitrogen

36
Q

What is VI in the haldane transformation?

A

Total volume inspired

37
Q

What is FEN2 in the haldane transformation?

A

Fraction expired nitrogen

38
Q

What is VE in the haldane transformation?

A

Total volume expired

39
Q

How can N2% be calculated for the haldane transformation?

A

100%-O2%-CO2%

HL10521 Human Physiology (13 decks)

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