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Flashcards in Respiratory Management Deck (33)
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1

What is meant by hypoxia?

Lack of tissue oxygen

2

What is meant by hypoxaemia?

Lack of oxygen in the blood

3

In COPD patients, we aim for SaO2 of between __ and __ %

88 and 92

4

What are the 4 main buffers of pH in the body?

Bicarbonate, Haemoglobin, Ammonium, Phosphate

5

Define acidaemia

pH less than 7.5

6

Define acidosis

A process by which the blood contains excess acid

7

Define alkalaemia

pH greater than 7.45

8

Define alkalosis

A process by which the blood contains excess base

9

Respiratory changes are monitored by looking at CO2 concn. True/False?

True

10

Metabolic changes are monitored by looking at [H+]. True/False?

False
Look at HCO3 concn

11

Metabolic compensation is rapid. True/False?

False
It is slow

12

Respiratory compensation is rapid. True/False?

True

13

If pH is low, PCO2 is high, HCO3 is normal, this is what?

Respiratory acidosis

14

If pH is high, PCO2 is normal, HCO3 is high, this is what?

Metabolic alkalosis

15

If pH is low, PCO2 is normal, HCO3 is low, this is what?

Metabolic acidosis

16

If pH is high, PCO2 is low, HCO3 is normal, this is what?

Respiratory alkalosis

17

If pH is normal, PCO2 is high, HCO3 is high, this is what?

Compensated respiratory acidosis OR
Compensated metabolic alkalosis

18

If pH is normal, PCO2 is low, HCO3 is low, this is what?

Compensated respiratory alkalosis OR
Compensated metabolic acidosis

19

If pH is low, PCO2 is high, HCO3 is high, this is what?

Decompensated respiratory acidosis
pH went down as PCO2 went up; compensation occurred by HCO3 increasing to bring pH to normal; PCO2 went up further to cause lower pH again

20

BE greater than +2 indicates what?

Metabolic alkalosis

21

BE less than -2 indicates what?

Metabolic acidosis

22

PEFR in obstructive disease is reduced. True/False?

True

23

PEFR in restrictive disease is reduced. True/False?

False
It is usually normal

24

FEV1 is reduced in obstructive disease. True/False?

True

25

FEV1 is reduced in restrictive disease. True/False?

True

26

FVC is reduced in obstructive disease. True/False?

False
Can be normal in asthmatics

27

FVC is reduced in restrictive disease. True/False?

True

28

FEV1/FVC is reduced in obstructive disease. True/False?

True

29

FEV1/FVC is the same in restrictive disease. True/False?

True

30

Which substances are used for bronchial challenge testing?

Methacholine, histamine, mannitol