Endotracheal tube suctioning should be preceded by:
a. pulse oximetry.
b. instillation of 15 mL of sterile saline solu-tion.
c. preoxygenation for 30 seconds.
d. hyperinflation for 60 seconds.
ANS: C
Preoxygenation of the patient with 100% oxygen for a minimum of 30 to 60 seconds before suc-tioning is required to avoid the hazards of hypoxemia.
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