Monitoring Flashcards
1
Q
What is hypoxemia?
A
(Inadequate oxygenation of arterial blood; PaO2 < 80 mmHg)
2
Q
How can hypoxemia be measured?
A
(Arterial blood gas and/or pulse oximetry)
3
Q
(T/F) Cyanosis is a late/severe sign of hypoxemia.
A
(T, for cyanosis to be present it requires the presence of a significant amount of deoxyHb, anemic patients may even die before they ever become cyanotic)
4
Q
What is indicated by a PaCO2 value of > 45 mmHg?
A
(Hypoventilation)
5
Q
When is a venous blood gas not reliable for evaluation of appropriate ventilation?
A
(When there is compromised tissue perfusion)
6
Q
When is end tidal CO2 not reliable for evaluation of appropriate ventilation?
A
(During CPR or if there is a pulmonary embolism)
