Which of the following can help avoid the problem of arterial blood sample contamination with air?
1. Discarding frothy samples
2. Fully expelling any bubbles
3. Mixing before expelling air
4. Capping syringe quickly
a. 2 and 3 only
b. 1, 2, and 4 only
c. 1 and 4 only
d. 1, 2, 3, and 4
Question 2
Which of the following changes would occur if an arterial blood sample of a patient breathing room air were exposed to a large air bubble? 1. Decreased PCO2 2. Decreased pH 3. Increased PO2
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3
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