Analysis of an Arterial Blood Sample Taken from a Healthy

question 114

Multiple Choice

Analysis of an arterial blood sample taken from a healthy athlete reveals a pH of 7.36, a PCO₂ of 45 mm Hg, and a PO₂ of 43 mm Hg. Which of the following analytic errors should you suspect?

• A) Excessive time since sample collection
• B) Exposure of the blood sample to air
• C) Excessive heparin in the sample
• D) Sample admixture with venous blood

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