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Flashcards in acid base clinical approach Deck (23)
1

1kPa = ?

7.5 mmHg

2

where are acids and bases excreted

lung and kidneys

3

what is normal pO2

12-13 kPa

4

what is normal pCO2

4.5-5.6 kPa

5

what is normal bicarbonate

22-26 mmol/l

6

what is the difference between actual and standard bicarbonate

actual is the conc of bicarbonate
standard assumes that some bicarbonate is in the form of carbonic acid

assumes 37 degrees and PaCO2 of 5.3

7

what are the adverse affects of high O2 levels

blindness in premies
mortality in cardiac arrest, ICU pts, acute severe asthma
atelactesis
free radicals
hypercapnic resp failure

O2 is to treat hypoxia not dyspnoea

8

what conditions would you treat with high flow 02

pneumothorax
CO poisoning

9

arterial PO2 is normally ___ fiO2

2/3

10

what is a healthy P/F ratio

>50

11

what P/F ration constitutes ARDS

26.7

12

what is a normal FEV1/FVC ratio

>0.7

13

what does fvc mean

exhales as hard and as long as possible

14

name 4 obstructive lung diseases

asthma copd bronchiectasis CF

15

will FVC and TLCO be the same in asthma

yes

will be increased in COPD

16

what are non pharma treatments for asthma

healthy weight
breathing exercises
stop smoking

17

what is a genetic cause of COPD

alpha 1 antitrypsin (inhibited by elastase)

18

what are the features of COPD

fibrosis, inflammation
hypertrophy of mucus glands
lost of elastic parenchymal lung fibres
cough and sputum
increased SOB

19

what causes bloating in COPD

right heart failure

20

what is the MRC breathlessness scale

grade 1-5

5- breathless when dressing

21

when will pts be offered domiciliary O2 therapy

PaO2 7.3-8

22

what pf indicates acute lung injury

less than 40

23

if ph and co2 are moving in opposite directions then the problem is probably ...

respiratory