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Integrated Physiology > Respiratory terms > Flashcards

Respiratory terms Flashcards

1
Q

What does Qc represent?

A

Cardiac output (L/min)

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2
Q

What does VE represent?

A

Minute ventilation (L/min)

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3
Q

What does VA represent?

A

Alveolar ventilation (L/min)

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4
Q

What does VO2 represent?

A

Oxygen consumption (L/min)

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5
Q

What does VCO2 represent?

A

Carbon dioxide production (L/min)

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6
Q

What does PB represent?

A

Barometric pressure (mmHg)

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7
Q

What does PO2 represent?

A

Partial pressure of oxygen (mmHg)

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8
Q

What does PCO2 represent?

A

Partial pressure of carbon dioxide (mmHg)

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9
Q

What does PN represent?

A

Partial pressure of nitrogen (mmHg)

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10
Q

What does PA(GAS) represent?

A

Gas pressure in the alveolar

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11
Q

What does Pa(GAS) represent?

A

Gas pressure in the arteries

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12
Q

What does PV(GAS) represent?

A

Gas pressure in the veins

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13
Q

What does VT or TV represent?

A

Tidal volume

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14
Q

What does f represent?

A

Respiratory rate

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15
Q

What does VD represent?

A

Anatomic dead space

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16
Q

What does IRV represent?

A

Inspiratory reserve volume

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17
Q

What does ERV represent?

A

Expiratory reserve volume

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18
Q

What does RV represent?

A

Residual volume

19
Q

What does FRC represent?

A

Functional residual capacity

20
Q

What does IC represent?

A

Inspiratory capacity

21
Q

What does VC represent?

A

Vital capacity

22
Q

What does TLC represent?

A

Total lung capacity

23
Q

Minute ventilation definition

A

How much is inhaled and exhaled in a minute

24
Q

Tidal volume definition

A

Volume of air moved into and out of the lungs during a single respiratory cycle

25
Q

Anatomic dead space definition

A

Volume of air in respiratory passageways where no gaseous exchange occurs

26
Q

Alveolar ventilation definition

A

Total volume of gas per unit time that reaches the alveoli

27
Q

Eupnoea definition

A

True breathing

When breathing is normal/unlaboured

28
Q

Apnoea definition

A

Cessation of breathing

29
Q

Hypoxia definition

A

Deficiency in the amount of oxygen reaching the tissues

30
Q

Hypercapnia definition

A

Abnormally high PaCO2 levels

31
Q

Hypocapnia definition

A

Abnormally low PaCO2 levels

32
Q

Inspiratory reserve volume definition

A

Extra air than can be inspired in addition to normal tidal inspiration

33
Q

Expiratory reserve volume definition

A

Extra air than can be expelled actively after passive expiration

34
Q

Residual volume definition

A

The amount of air left in the lungs that cannot be expelled

35
Q

Functional residual capacity definition

A

Lung volume at the end of normal quiet breathing

36
Q

How do you calculate functional residual breathing?

A

= Expiratory reserve volume + Reserve volume

= ERV + RV

37
Q

Inspiratory capacity definition

A

The volume that can be inspired from the end of normal quiet expiration to maximal inspiration

38
Q

How do you calculate inspiratory capacity?

A

= Tidal volume + inspiratory reserve volume

= TV(VT) + IRV

39
Q

Vital capacity definition

A

From maximal inspiration to maximal expiration

40
Q

How do you calculate vital capacity?

A

= Inspiratory reserve volume + Tidal volume + Expiratory reserve volume
= IRV + TV(VT) + ERV

41
Q

Total lung capacity definition

A

From maximal inspiration to residual volume

42
Q

How do you calculate total lung capacity?

A

= Inspiratory reserve volume + Tidal volume + Expiratory reserve volume + Residual volume
= IRV + TV(VT) +ERV +RV

43
Q

How do you calculate alveolar ventilation?

A

= Respiratory rate * (Tidal volume + Anatomic dead space)

= f * (VT + VD)

Integrated Physiology (4 decks)

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