arterial blood gas

Question 1

what is an acceptable pH range?

Answer 1

7.35-7.45

Question 2

what is an acceptable PCO2 range?

Answer 2

35-45 mmHg

Question 3

what is an acceptable PO2 range?

Answer 3

80-100 mmHg

Question 4

what do central chemoreceptors respond to?

Answer 4

change in CO2

Question 5

what do peripheral chemoreceptors respond to?

Answer 5

change in O2

Question 6

a ________ change in PO2 results in ___________ respiration changes

Answer 6

drastic, moderate

Question 7

a ________ change in PCO2 results in _______ respiratory changes

Answer 7

moderates, drastic

Question 8

what pH change can lead to death?

Answer 8

7.8

Question 9

what do you measure to determine alveolar ventilation?

Answer 9

PCO2

Question 10

what does a pH below 7.4 indicate?

Answer 10

acidosis

Question 11

what does a pH above 7.4 indicate?

Answer 11

alkalosis

Question 12

what is an acceptable range for HCO3?

Answer 12

22-26 mEq/L

Question 13

what happens during metabolic acidosis?

Answer 13

pH and HCO3 BOTH drop

Question 14

what happens during respiratory acidosis?

Answer 14

pH drops and PCO2 increases

Question 15

what are the parameters for respiratory failure?

Answer 15

pH below 7.3, PCO2 above 50, hypoxemia

Question 16

what is obstructive lung disease?

Answer 16

airflow restriction, increased airway resistance

Question 17

what is restrictive lung disease?

Answer 17

decreased total lung capacity

Question 18

what are precautions for patients with interstitial lung disease?

Answer 18

monitor SaO2 and be prepared for it to drop like a rock with minimal activity