A practitioner forgets to ice an ABG sample and leaves it at room temperature for 45 min. Which of the following parameters can you predict will increase in this sample during that period? 1. PCO2 2. pH 3. PO2
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2, and 3
Q. 2 If patient pain or anxiety occurs during arterial puncture, which of the following will probably occur?
a. Hypoventilation
b. Hyperventilation
c. Respiratory acidosis
d. Hypoxemia
Q. 3 Most pre-analytical ABG errors can be avoided by ensuring that the sample is which of the fol-lowing? 1. Properly anticoagulated. 2. Obtained anaerobically. 3. Analyzed within 15 to 30 min.
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3
Q. 4 Which of the following indicates venous admixture during arterial puncture? 1. Need to use syringe suction. 2. Dark-colored blood. 3. Small sample volumes.
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3
Q. 5 When performing a percutaneous needle puncture of the radial artery, you get only a small spurt of blood. Which of the following is the best action at this time?
a. Slowly withdraw the needle until a pulsa-tile flow fills the syringe.
b. Pull out entirely, use a different angle and then reinsert it.
c. Slowly advance the needle until a pulsatile flow fills the syringe.
d. Repeat the procedure with a fresh blood gas kit.
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