MED GAS MODULE 3 EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
What are the laboratory measures for O2 therapy? Documented moderate hypoxemia
based off of a ______ or ______ - Answer-PaO2 <60, SaO2 <90%
What is SaO2 - Answer-arterial oxygen saturation - % of O2 carrying sites on HB in
arterial blood that is actually carrying O2
What could be the results of untreated hypoxemia - Answer-Acute myocardial infarction,
severe trauma, short-term therapy or surgical intervention
What is FiO2 - Answer-fraction of inspired oxygen - content/% of O2 in the air that a
person breathes in
What are some precautions and possible complications of O2 therapy - Answer-Too
much O2, ventilatory depression with patients w/ COP
You should begin patients on O2 without a lower FiO2 of _____ - _____ - Answer-.24 -
.28
What happens if you have an FiO2 of less than 0.5 - Answer-Absorption atelectasis and
collapsed segments of the lungs
In premature infants a PaO2 of >80 mmHg can lead to - Answer-Retinopathy of
prematurity
What does RACE stand for - Answer-rescue, alarm, contain, extinguish
What does PASS stand for - Answer-Pull, Aim, Squeeze, Sweep
Things that can increase FiO2 - Answer-Higher O2 input, mouth-closed breathing (while
using a nasal cannula), low inspiratory flow, low tidal volume, slow rate of breathing,
small minute ventilation, long inspiratory time, high I:E ratio
Things that can decrease FiO2 - Answer-Lower O2 output, mouth open breathing, high
inspiratory flow, high tidal volume, fast rate of breathing, large minute ventilation, short
inspiratory time, low I:E ratio
A humidifier (for a nasal cannula) is used when input flow is - Answer-> 4 L/Min
QUESTIONS WITH COMPLETE
SOLUTIONS
What are the laboratory measures for O2 therapy? Documented moderate hypoxemia
based off of a ______ or ______ - Answer-PaO2 <60, SaO2 <90%
What is SaO2 - Answer-arterial oxygen saturation - % of O2 carrying sites on HB in
arterial blood that is actually carrying O2
What could be the results of untreated hypoxemia - Answer-Acute myocardial infarction,
severe trauma, short-term therapy or surgical intervention
What is FiO2 - Answer-fraction of inspired oxygen - content/% of O2 in the air that a
person breathes in
What are some precautions and possible complications of O2 therapy - Answer-Too
much O2, ventilatory depression with patients w/ COP
You should begin patients on O2 without a lower FiO2 of _____ - _____ - Answer-.24 -
.28
What happens if you have an FiO2 of less than 0.5 - Answer-Absorption atelectasis and
collapsed segments of the lungs
In premature infants a PaO2 of >80 mmHg can lead to - Answer-Retinopathy of
prematurity
What does RACE stand for - Answer-rescue, alarm, contain, extinguish
What does PASS stand for - Answer-Pull, Aim, Squeeze, Sweep
Things that can increase FiO2 - Answer-Higher O2 input, mouth-closed breathing (while
using a nasal cannula), low inspiratory flow, low tidal volume, slow rate of breathing,
small minute ventilation, long inspiratory time, high I:E ratio
Things that can decrease FiO2 - Answer-Lower O2 output, mouth open breathing, high
inspiratory flow, high tidal volume, fast rate of breathing, large minute ventilation, short
inspiratory time, low I:E ratio
A humidifier (for a nasal cannula) is used when input flow is - Answer-> 4 L/Min
