TBL 1 Prep-work

Helpfulness: 0
Set Details Share
created 6 days ago by brandibyler
7 views
updated 6 days ago by brandibyler
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1
card image

What is A?

Inspiratory Reserve Volume (IRV)

2
card image

What is B?

Tidal Volume (TV)

3
card image

What is C?

Expiratory Reserve Volume (ERV)

4
card image

What is D?

Residual Volume (RV)

5

The volume of air that cannot be exhaled from the lungs regardless of the force of expiration is known as __________.

Residual volume

6

T/F: Residual volume can be measured by spirometry

False

7

The maximum volume of air that can be expired after a maximum inspiration is known as _______

Vital capacity

8

VC =

ERV + TV + IRV

9

Inspiratory Capacity (IC) =

TV + IRV

10

The volume of air that can be inspired above the tidal volume is called ___________

Inspiratory Reserve Volume (IRV)

11

___________ is the process by which O2 and CO2 are exchanged in the lungs and through all cell membranes

Diffusion

12

How is the majority of CO2 carried in the blood?

Bicarbonate in plasma (~70%)

13

The law of partial pressure is known as _____________

Dalton's Law

14

The absorption of gas in a liquid under partial pressure is an example of _____________

Henry's Law

15

Why would a puncture wound to the left side of the chest that penetrates the pleural cavity cause the lung to collapse?

It would allow air to enter, causing the pleural cavity P to equal ATM. (Transpulmonary P would become 0)

16

A complete or partial collapse of the entire lung or area (lobe) of the lung is known as _______

Atelectasis

17

If tidal vol is 500 mL and breathing rate is 12 breaths per min, what is the minute ventilation?

6000 mL/min

18

If tidal vol is 500 mL and breathing rate is 12 breaths per min, what is the alveolar ventilation?

4200 mL/min

19

What is the dead space volume?

150 mL

20

If the intrapulmonary P = 0 mmHg and the intrapleural P = -5 mmHg, what is the transpulmonary P?

5 mmHg

21

____________ is a measure of the ability to stretch and expand the lungs

Lung compliance

22

Compliance =

ΔV/ΔP

23

Define internal respiration

Exchange of O2 and CO2 with tissue not exposed to external environment.

24

Define external respiration

Exchange of O2 and CO2 in the lungs

25

What is dead space?

Ventilation w/o respiration

26

What determines respiratory gas movements?

Partial pressure gradients

27

What two forces pull the lungs away from the thorax wall?

  • Lung recoil
  • Surface tension of alveolar fluids
28

In a closed system, pressure is inversely proportional to volume. This is known as __________

Boyle's Law

29

In what ways can O2 be carried in the blood?

  • Physically dissolved
  • Chemically combined w/ hemoglobin
30

T/F: Adult hemoglobin has a greater affinity for O2 than fetal hemoglobin

False

31

When fully saturated w/ O2, 1 gram of Hb binds how much O2?

1.34 mL

32

What is the oxygen carrying capacity of a person w/ 15g Hb/100 mL of blood?

20.1 mL O2

33

T/F: % O2 saturation does not equal oxygen content in the blood

True

34

% Hb saturation =

O2 bound / O2 capacity

35

To determine O2 bound =

Capacity * saturation

36

Total O2 content =

bound + physically dissolved

37

Po2 of blood entering pulmonary capillaries

40 mmHg

38

Low pH and high PCO2 would shift the oxyhemoglobin dissociation curve to the _______ (right/left)

Right

39

High pH and low PCO2 would shift the oxyhemoglobin dissociation curve to the _______ (right/left)

Left

40

High temps would shift the oxyhemoglobin dissociation curve to the _______ (right/left)

Right

41

Low temps would shift the oxyhemoglobin dissociation curve to the _______ (right/left)

Left

42

High [2,3-BPG] would shift the oxyhemoglobin dissociation curve to the _______ (right/left)

Right

43

T/F: When bound to hemoglobin, 2,3-BPG increases the affinity of hemoglobin for O2

False

44

T/F: More 2,3-BPG is produced during chronic hypoxia conditions

True

45

List ways CO2 is transported in the blood

  • Physically dissolved (5-10%)
  • Carbamino compounds (5-10%)
  • Bicarbonate (80-90%)
46

Describe the Haldane effect

Allows blood to load more CO2 at tissues and unload more CO2 at lungs

47

According to the Haldane effect, how would an increase in oxyhemoglobin affect the CO2 dissociation curve?

Shift right

48

According to the Haldane effect, how would an increase in deoxyhemoglobin affect the CO2 dissociation curve?

Shift left