Author Question: Because of an extremely low PO2, you suspect that an arterial blood sample taken from a pa-tient's ... (Read 61 times)

cdr_15 · **on:** Jul 16, 2018

Because of an extremely low PO2, you suspect that an arterial blood sample taken from a pa-tient's brachial artery might have been contaminated with venous blood. Which of the following might help to confirm your suspicion?

a. Call the laboratory resources/staff to get the latest chemistry report.
b. Inspect the sample for color and con-sistency.
c. Cross-check the sample with an SpO2 reading.
d. Measure the sample's actual hemoglobin saturation.

Question 2

A PaO2 below what value would be considered moderate hypoxemia?

a. 75 mm Hg
b. 65 mm Hg
c. 55 mm Hg
d. Depends on the FiO2

akpaschal · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: C

Answer to Question 2

ANS: C
A PaO2 of less than 40 mm Hg is called severe hypoxemia, a PaO2 of 40 to 59 mm Hg is called moderate hypoxemia, and a PaO2 of 60 mm Hg to the predicted normal is called mild hypox-emia.