When a sample of arterial blood is analyzed for the pressure of oxygen (PaO2), the value comes from the:
a. blood plasma.
b. leukocytes.
c. hemoglobin.
d. erythrocytes.
A
A blood gas analyzer measures the pressure of oxygen and carbon dioxide in the blood plasma. Oxygen is chemically bound to the hemoglobin in the erythrocytes and is measured by an oximeter as the saturation, not as a partial pressure. Leukocytes do not carry oxygen.
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Which of the following patients should NOT be transported in a stair chair?
A) Patient found lying in bed B) Patient who is nauseated C) Patient with a suspected spinal injury D) Patient with difficulty breathing
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