Gas Exchange Test bank

Concept 16: Gas Exchange Test Bank MULTIPLE CHOICE 1. The nurse is assigned a group of patients. Which patient would the nurse identify as being at increased risk for impaired gas exchange? A patient a. with a blood glucose of 350 mg/dL b. who has been on anticoagulants for 10 days c. with a hemoglobin of 8.5 g/dL d. with a 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. 2. The nurse is reviewing the patient’s arterial blood gas results. The PaO2 is 96 mm Hg, pH is 7.20, PaCO2 is 55 mm Hg, and HCO3 is 25 mEq/L. What would the nurse expect to observe on assessment of this patient? a. Disorientation and tremors b. Tachycardia and decreased blood pressure c. Increased anxiety and irritability