15. With acute exposure to FiO² of 10% you would e

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15. With acute exposure to FiO² of 10% you would expect
a. Respiratory alkalosis
b. An increase in cardiac output
c. Alkaline urine
d. increased arterial PCO²
e. pulmonary vasoconstriction

mark wrote:

15. With acute exposure to FiO² of 10% you would expect
a. Respiratory alkalosis
b. An increase in cardiac output
c. Alkaline urine
d. increased arterial PCO²
e. pulmonary vasoconstriction

a.True. Inhalation of hypoxic gas mixture causes stimulation of peripheral chemoreceptors from decreased Pao2, leading to increased ventilation and decreased Paco2. This will cause a respiratory alkalosis.
b. True Increased sympathetic drive secondary to hypoxia will increase cardiac output.
c. False Renal compensation of the respiratory alkalosis will not happen acutely
d. False Increased minute volume leading to decreased PaCO2
e. True Alveolar hypoxia leads to pulmonary vasocontriction