Normal Values
pH
7.35-7.45
7.40, 40, 90, 24
normal
You draw an ABG on a patient wearing a 6L NC. What FiO2 will you record when analyzing the gas?
44%
Hyperventilation (in a normal, healthy adult) will cause an ABG to show respiratory _________.
alkalosis
Preferred collection site and why?
radial, check collateral circulation.
Normal body temperature in Celsius.
37 degrees
7.30, 55, 90, 23
uncompensated respiratory acidosis
Where is the most common site for a capillary gas in an infant?
heel
Po2 may be measured using a this type of electrode that uses heat and is noninvasive.
transcutaneous
True or False:
Specimens drawn in glass syringes should not be placed in ice water.
false; plastic syringes cannot be placed in ice water.
Base excess
-2 to +2
7.49, 50, 90, 30
partially compensated metabolic alkalosis
What is the pH of water?
7.0
_____ is a platinum electrode covered with a thin polypropylene membrane that measures PO2.
Clark electrode
As the patient's temperature rises, this causes the _____ to decrease.
pH
mixed venous PO2
approx. 40
7.42, 50, 90, 29
fully compensated metabolic alkalosis
Healthy subjects breathing 100% O2 may exhibit Pao2 values higher than ______ mm Hg.
600
If a metabolic acidemia is present, examination of the_______needs to be assessed.
Anion Gap
As the patient's temperature decreases, what will be decreasing?
PO2 and PCO2
Anion Gap
4-12
7.20, 65, 65, 20
mixed/combined acidosis
An air bubble will have what effect on pH, PCO2, and PO2?
increase, decrease, increase
The pH of arterial blood is related to the Paco2 by what equation?
Henderson - Hasselbach
When collecting an ABG for exercise testing, the sample should be collected within _______ post exercise.
15 minutes