RESPIRATION LungVolumE Flashcards Preview

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Flashcards in RESPIRATION LungVolumE Deck (23):
1

tidal volume

- normal inspiratory (500ml) and expiratory volume

2

force vital capacity

- maximum volume of air that can be expired

3

residual volume

- air volume remained after force vital capacity

4

functional residual capacity

- air left in the lung after normal expiration

5

inspiratory capacity

- volume inhaled maximally after normal expiration
- maximum inspired volume in a normal person

6

total lung capacity

= FVC + RV
= FRC + IC

7

RR from 15 cpm to 44 cpm

- rapid and shallow
- ACIDOTIC

8

respiratory zone

- exchange of gases takes place
- ALVEOLI ARE FOUND
- ALVEOLAR DEAD SPACE
- no blood flow in the surrounding capillaries

9

conducting zone

- airways
- trachea
- bronchioles
- NO exchange of gases takes place
- PHYSIOLOGICAL DEAD SPACE/ dead zone: normal person measure 150 ml
- CO2- LEAST during expiration room air
- CO2- NO on normal atmosphere
- O2
- NITROGEN DURING EXPIRATION

10

rapid and shallow breathing

- CONDUCTING ZONE
- depressed alveolar ventilation
- source of CO2 blood to the alveoli
- alveolar ventilation
- ACIDOTIC

11

HYPERVENTILATING/ deep ventilation

- ALVEOLAR INVOLVEMENT
- RESPIRATORY ZONE

12

TOTAL VENTILATION

= conducting zone + respiratory zone x RR

13

total ventilation

= conducting zone + respiratory zone = tidal volume (500ml/min) RR 15cpm= normally a person has 7,500 ml/min

14

alveolar ventilation

= tidal volume - dead space x RR
= 500 - 150 mm x 15 cpm
= 5,250 ml/min AMOUNT REACHED INTO THE ALVEOLI

15

2000ml

lost in the dead space

16

increase in DEAD SPACE is inverse to alveolar ventilation

- decrease alveolar ventilation
- not blowing CO2
- increase PACO2

17

pathological increased DEAD SPACE

- EMPHYSEMA
- increase PACO2
- hypercapnea
- acidosis

18

TIDAL VOLUME
pt A 400

pt B 200

higher PO2= pt A
higher PCO2= pt B
higher pH= pt A

RESPIRATORY RATE
10 increase O2

20 increase PCO2

19

respiratory rate (CO2)

- higher more conducting zone
- increase CO2= low pH
- decrease O2

20

depth (O2)

- higher more respiratory zone
- decrease CO2= high pH
- increase O2

21

CO2 is inverse to

- pH

22

a NORMAL PERSON during EXPIRATION which of the ff is least likely or not expected to be found in a conducting zone

- LEAST CO2 in room air temperature

23

a NORMAL PERSON during INSPIRATION which of the ff is least likely or not expected to be found in a conducting zone

- NO CO2 in normal atmosphere