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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Definitions:

Average College Freshman

A hypothetical or statistical representation of an incoming college student based on average attributes or characteristics.

Z-test

A Z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

Sample Mean

The sample mean is the average value of a sample set of numbers, calculated as the sum of the individual values divided by the number of values in the sample.