ABG Crap Flashcards
What value determines how well patient is oxygenated?
PaO2
What value determines how well patient is ventilating?
PaCO2
3 systems and mechanisms that control acid/base
Kidney-HCO3
Lungs-CO2
Buffer-electrolytes
CO2 is acid or base?
Acid
HCO3 is acid or base?
Base
CO2 is only found in the __________ system
Respiratory
What value measures the concentration of hydrogen ions (H+) in arterial blood?
pH
As concentration of H+ rises, pH _______
lowers
As concentration of H+ lowers, pH ________
rises
What represents partial pressure of O2 dissolved in arterial blood?
PaO2
PaO2 less than 60 indicates what?
hypoxia
3 sites ABG is drawn
Radial artery (Most common)
Brachial artery
Femoral artery (Last resort)
Test used before radial ABG draw
Allen’s test
What color should blood be from artery?
Bright red
Flashback of artery blood should ______ into the syringe
pulsate
How many mL will blood stop in syringe?
2 mL
Apply pressure for how many minutes after ABG draw?
5-10 minutes
If patient is on anticoagulants, how many minutes should you apply pressure?
10-15 minutes
Arterial line complications
- hemorrhage
- infection
- thrombus formation
- neurovascular impairment
- loss of limb
Normal arterial blood pH range
7.35-7.45
pH less than 7.35 is
Acidic
pH greater than 7.45
Alkalotic
Normal PaCO2 range
35-45
Respiratory parameter
PaCO2