Exam 4: Lecture 51: AI Questions Flashcards
What pH indicates acidosis?
<7.35
What pH indicates alkalosis?
> 7.45
What is PaCO2 threshold for acidosis?
> 50 mmHg
What is PaCO2 threshold for alkalosis?
<30 mmHg
What is normal pH range?
7.35-7.45
What is normal bicarbonate level?
18-28 mEq/L
What does low HCO3 indicate?
Acidosis
What is the main respiratory compensatory mechanism?
Hyperventilation
What gas is exhaled in compensation?
CO2
How quickly do respiratory compensations occur?
Minutes to hours
How long do renal compensations take?
Hours to days
What does a PaO2 below 60 mmHg indicate?
Respiratory failure
What does SaO2 below 90% indicate?
Respiratory failure
What is the FiO2 calculation used for?
Oxygenation assessment
What does PaCO2 > 55 mmHg suggest?
Respiratory acidosis
What does PaO2/FiO2 ratio below 200 indicate?
Severe pulmonary disease