Respiratory Lab [Lab Practical 2] Flashcards Preview

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Flashcards in Respiratory Lab [Lab Practical 2] Deck (53)
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1
Q

The female respiratory values are what percentage smaller than males?

A

20-25%

2
Q

Male Total Lung Capacity

A

6,000 ml

3
Q

Male Inspiratory Reserve Volume

A

3,000 ml

4
Q

Male Tidal Volume

A

500 ml

5
Q

Male Functional Residual Capacity

A

2,500 ml

6
Q

Male Inspiratory Capacity

A

3,500 ml

7
Q

Male Expiratory Reserve Volume

A

1,000 ml

8
Q

Male Vital Capacity

A

4,500 ml

9
Q

Male Residual Volume

A

1,500 ml

10
Q

Tidal Volume (TV)

A

The amount of air inspired or expired during normal, quiet respiration.

11
Q

The amount of air inspired or expired during normal, quiet respiration.

A

Tidal Volume (TV)

12
Q

The total amount of air one’s lungs can possibly hold can be subdivided into

A

Four Volumes

13
Q

Inspiratory Reserve Volume (IRV)

A

The amount of air which can be forcefully inspired above and beyond that taken in during a normal inspiration

14
Q

The amount of air which can be forcefully inspired above and beyond that taken in during a normal inspiration

A

Inspiratory Reserve Volume (IRV)

15
Q

Expiratory Reserve Volume (ERV)

A

The maximal amount of air which can be forcefully expired following a normal expiration

16
Q

The maximal amount of air which can be forcefully expired following a normal expiration

A

Expiratory Reserve Volume (ERV)

17
Q

Residual Volume (RV)

A

The amount of air which remains trapped in the lungs after a maximal expiratory effort

18
Q

The amount of air which remains trapped in the lungs after a maximal expiratory effort

A

Residual Volume (RV)

19
Q

In addition to the four volumes, which do not overlap, there are four ____ which are combinations of two or more volumes

A

Capacities

20
Q

Total Lung Capacity (TLC)

A

The total amount of air the lungs can contain–the sum of all four volumes

21
Q

The total amount of air the lungs can contain–the sum of all four volumes

A

Total Lung Capacity (TLC)

22
Q

Vital Capacity (VC)

A

The maximal amount of air that can be forcefully expired after a maximum inspiration

23
Q

The maximal amount of air that can be forcefully expired after a maximum inspiration

A

Vital Capacity (VC)

24
Q

Functional Residual Capacity (FRC)

A

The amount of air remaining in the lungs after a normal expiration

25
Q

The amount of air remaining in the lungs after a normal expiration

A

Functional Residual Capacity (FRC)

26
Q

Inspiratory Capacity (IC)

A

The maximal amount of air which can be inspired after a normal expiration

27
Q

The maximal amount of air which can be inspired after a normal expiration

A

Inspiratory Capacity (IC)

28
Q

Spirometer

A

The instrument we used to measure the respiratory volumes; a lightweight metal bell inverted in a drum filled with water

29
Q

The instrument we used to measure the respiratory volumes; a lightweight metal bell inverted in a drum filled with water

A

Spirometer

30
Q

Calculating Tidal Volume

A

Multiply your Tidal Volume by your Respiratory Rate per minute to give your Respiratory Minute Volume
Respiratory Minute Volume = TV X Breathing Rate
(mL air / min) = TV X (breaths/min)
TV = mL air / breath

31
Q

How did we find tidal volume?

A

Set spirometer to zero. Take a normal inspiration, place your mouth over the mouthpiece, and exhale a normal expiration into the spirometer

32
Q

How did we find expiratory reserve volume?

A

Set the spirometer to zero. After a normal expiration, place your mouth over the mouthpiece and forcefully exhale as much air as possible into the spirometer

33
Q

How did we find vital capacity?

A

Set spirometer to zero. Inhale as deeply as possible; place your mouth over the mouthpiece, hold your nose, and exhale into the spirometer with a maximal effort. Then use the table for predicted vital capacity based on your age, height, and sex

34
Q

How do we calculate the inspiratory reserve volume (IRV)?

A

Vital Capacity - Tidal Volume - Expiratory Reserve volume

35
Q

How do we calculate the Inspiratory Capacity (IC)?

A

Vital Capacity - Expiratory Reserve Volume

36
Q

In this test the subject takes five deep breaths and then holds his breath as long as possible after the last inspiration. Gives an indication of the person’s functional respiratory reserve and efficiency of his respiratory system. Often a better index of respiratory reserve than is the traditional vital capacity measurement.

A

Heymer Test

37
Q

Heymer Test

A

In this test the subject takes five deep breaths and then holds his breath as long as possible after the last inspiration. Gives an indication of the person’s functional respiratory reserve and efficiency of his respiratory system. Often a better index of respiratory reserve than is the traditional vital capacity measurement.

38
Q

Normal male values for the Heymer test

A

50-70 seconds

39
Q

Normal female values for the Heymer test

A

50-60 seconds

40
Q

Measures the volume of gas that passes through it

A

Dry gas meter

41
Q

Bag that collects the air you breath into it

A

Douglas bag

42
Q

Units for Minute Volume (Vm)

A

ml air / min

43
Q

Units for breathing rate (BR)

A

Breaths / minute

44
Q

Units for heart rate (HR)

A

beats / minute

45
Q

In the respiratory system, the flow of air is called the

A

Minute Volume (Vm)

46
Q

In the circulatory system, the flow of blood is called the

A

Cardiac Output (CO)

47
Q

How do we calculate metabolic rate or oxygen consumption (VO2)?

A

VO2 = (Vm)(CO2i - CO2e) = (CO)(CO2a - CO2v)

ml O2 / min

48
Q

In most resting people, arteriole blood is 100% saturated w/ oxygen, but mixed venous blood is only

A

60% saturated

49
Q

How did we calculate the oxygen content of arteriole blood (CO2a)?

A

Assuming you have the average hemoglobin concentration and each gram of hemoglobin can bind with 1.3 ml of O2

CO2a = (13.3 g hemoglobin / 100 ml blood) X (1.3 ml O2 / 1 g hemoglobin)

50
Q

How did we calculate the oxygen content of venous blood (CO2v)?

A

CO2v = 0.6 (CO2a)

51
Q

In our hw how did we calculate cardiac output (CO)?

A

CO = VO2 / (CO2a-CO2v)

[ml blood/min]

52
Q

In our hw how did we calculate stroke volume?

A

SV = CO / HR

[ml blood / beat]

53
Q

In our hw how did we calculate total peripheral resistance (TPR)?

A

TPR = mean arterial pressure / CO

closely equal to;

[(systolic + 2 diastolic)/3] / CO