A 70-kg male patient has a CO2 of 200 ml/min and a VA of 9 L/min. From this information, what can you infer?
a. The patient's carbon dioxide production is abnormally low.
b. The patient's A is abnormally low.
c. The patient will have a lower than normal PACO2.
d. The patient will have a higher than normal PACO2.
ANS: C
When the CO2 is normal while the A is elevated, the PACO2 must be lower than normal. Like-wise, the PACO2 will fall if carbon dioxide production decreases or alveolar ventilation increases.
Health Professions
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