Which statement about shifts in the oxyhemoglobin dissociation curve is correct?

a. With a shift to the right, hemoglobin releases oxygen to the tissues more readily.

b. With a shift to the right, hemoglobin is less likely to release oxygen to the tissues.

c. With a shift to the left, hemoglobin’s affinity for oxygen is decreased.

d. With a shift to the left, hemoglobin is more likely to release oxygen to the tissues.

Correct answer: a. With a shift to the right, hemoglobin releases oxygen to the tissues more readily in an effort to keep tissues well oxygenated.

To learn more, read the continuing nursing education article “Decoding the oxyhemoglobin dissociation curve.”