Difficulty: Medium
Average Score: 91%
Simulated
Review history and physical, laboratory results, flow sheet, and prescriptions. Which is/are likely cause(s) of the client's decreasing oxygen hemoglobin affinity? Select all that apply.
Correct answer
A,B,E
Rationale
Oxygen-hemoglobin dissociation curve shifts right (decreased affinity, easier O2 release to tissues) with fever, acidosis, hypercapnia (2,3-DPG increase), and exercise. Increased bicarbonate and supplemental O2 shift it left. Hemorrhage and tachycardia are compensatory but not direct causes of affinity change.