A 2-day-old Caucasian boy develops tachypnea and cyanosis with a blood pH of 7.1. A serum bicarbonate (HCO 3) is measured as 12 mM, but the (P O2) and (P CO2) are not yet available
A 2-day-old Caucasian boy develops tachypnea and cyanosis with a
blood pH of 7.1. A serum bicarbonate (HCO 3) is measured as 12 mM, but the (P O2) and (P CO2) are not yet available. Recall the pK a of 6.1 for carbonic acid (reflecting the HCO 3/CO2 equilibrium in blood) and the fact that the blood CO 2 concentration is equal to the P CO2 in mm Hg (normal
value = 40 mm Hg) multiplied by 0.03. Which of the following treatment strategies is most appropriate?
a. Administer oxygen to improve tissue perfusion and decrease metabolic acidosis.
b. Administer oxygen to decrease respiratory acidosis.
c. Increase the respiratory rate to treat respiratory acidosis.
d. Decrease the respiratory rate to treat respiratory acidosis.
e. Administer medicines to decrease renal hydrogen ion excretion.
Could you explain the math behind this problem, I’ve been running into a few issues using the Henderson Hasselbach’s formula, thanks in advance.
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