A Shift to the Left of the Oxyhemoglobin Dissociation Curve

question 20

Multiple Choice

A shift to the left of the oxyhemoglobin dissociation curve would cause which physiologic alteration?

• A) Better tissue perfusion
• B) Lower SpO₂
• C) Decreased hemoglobin affinity for O₂
• D) Impaired tissue oxygen delivery

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Definitions:

Sampling Error

The discrepancy between a sample statistic and the actual population parameter, which arises purely by chance from random sampling.

Confidence Interval

A variety of numerical values, sourced from sample measurements, that is believed to include the value of a not-yet-known population attribute.

Population Mean

The average value of all the members of a set or population.

Probability

The determination of the odds that an event will happen, shown as a number from 0 to 1.