A patient tells the nurse that he feels more energetic when he wears oxygen. The nurse realizes that oxygen is helping the patient by
1. breaking down carbohydrates.
2. increasing extraction.
3. shifting the oxyhemoglobin dissociation curve to the left.
4. producing adenosine triphosphate.
4
Rationale: Oxygen consumption is the process by which cells use oxygen to generate energy. Oxygen enables the energy contained in food to be broken down into elements that are converted into energy in the form of adenosine triphosphate. The primary value of oxygen is its ability to develop adenosine triphosphate which would explain why the patient feels more energetic when he wears oxygen. The breakdown of carbohydrates is done without oxygen. The use of oxygen will not increase the extraction of oxygen in the tissues. Shifting the oxyhemoglobin dissociation curve to the left will increase the body's hemoglobin carrying capacity of oxygen but will decrease the release of oxygen to the tissues.
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a. actualized b. employable c. turnover d. vacancy