A patient has a PCO2 of 80 mm Hg. What is the concentration of dissolved CO2 (in mmol/L) in the blood?
a. 1.2 mmol/L
b. 2.4 mmol/L
c. 24 mmol/L
d. 40 mmol/L
ANS: B
Because dissolved CO2 (PCO2 ⋅ 0.03) is in equilibrium with and directly proportional to blood [H2CO3], and because blood PCO2 is more easily measured than [H2CO3], dissolved CO2 is used in the denominator of the Henderson-Hasselbalch equation.
You might also like to view...
A type of needle that allows for an open venous line to be maintained is referred to as ____________________.
Fill in the blank(s) with the appropriate word(s).
A high-pitched inspiratory noise caused by a partial upper airway obstruction is called:
A) stridor. B) dysphonia. C) rhonchi. D) wheezing.
Chargers for battery-operated powered industrial trucks should be kept at least 10 feet (3 m) from combustible materials
A. True B. False
All of the following can mask a deficiency of VWF and thus of type 1 VWD except:
a. Type A blood group b. Pregnancy c. Acute stress d. Type AB blood group