Oxygen - 18/11/16

Question 1

amount of O2 in blood per mmHg

Answer 1

0.3ml

Question 2

1g of Hb binds to how much O2

Answer 2

1.39ml

Question 3

SaO2

Answer 3

O2 saturation of arterial blood

Question 4

SpO2

Answer 4

O2 saturation as detected by pulse oximeter

Question 5

oxygen saturation definition

Answer 5

amount of oxyhemoglobin

usually 96 - 98%

Question 6

PaO2

Answer 6

oxygen dissolved in arterial blood plasma

Question 7

FiO2

Answer 7

fraction of oxygen given to patient / inhaled normally oxygen

Question 8

type I respiratory failure

Answer 8

low O2 and normal CO2

Question 9

type II respiratory failure

Answer 9

low O2 and high CO2

Question 10

diseases associated with decreased V/Q ratio

Answer 10

asthma
chronic bronchitis 
pulmonary oedema 
airway obstruction 
(air problems)

Question 11

diseases associated with increased V/Q ratio

Answer 11

pulmonary embolism
emphysema
pulmonary hypertension
(blood problems)

Question 12

dissociation of O2 equation

Answer 12

CO (cardiac output) x (1.3 x Hb x SaO2) + (0.003 + PaO2)

Question 13

nasal cannula

Answer 13

low flow
uncontrolled FiO2
dependent on nasal breathing

Question 14

hudson/simple mask

Answer 14

5-15 l/min

not high flow

Question 15

venturi

Answer 15

fixed performance

flow up to 250 l/min

Question 16

non-rebreathing

Answer 16

up to 85% FiO2

uncontrolled FiO2