The nurse is assigned a group of patients. Which patient finding would the nurse identify as a factor leading to increased risk for impaired gas exchange?
a. Blood glucose of 350 mg/dL
b. Anticoagulant therapy for 10 days
c. Hemoglobin of 8.5 g/dL
d. Heart rate of 100 beats/min and blood pressure of 100/60
ANS: C
The hemoglobin is low (anemia), therefore the ability of the blood to carry oxygen is decreased. High blood glucose and/or anticoagulants do not alter the oxygen carrying capacity of the blood. A heart rate of 100 beats/min and blood pressure of 100/60 are not indicative of oxygen carrying capacity of the blood.
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