How much pressure and time are typically used during a lung recruitment maneuver?

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Multiple Choice

How much pressure and time are typically used during a lung recruitment maneuver?

Explanation:
During a lung recruitment maneuver, you want a pressure that’s high enough to pop open collapsed alveoli but not so high that it risks overdistension or hemodynamic problems, and you need enough time for those airways to open and stabilize. The mid-range pressure of about 35–45 cm H2O held for roughly 40–60 seconds provides that balance: it reliably recruits alveolar units while limiting exposure to excessive pressures or prolonged holds. Shorter or lower-pressure attempts may not recruit effectively, while higher pressures or longer durations increase risk without clear added benefit. In practice, this range is commonly used to achieve meaningful recruitment while watching for stability in oxygenation and blood pressure.

During a lung recruitment maneuver, you want a pressure that’s high enough to pop open collapsed alveoli but not so high that it risks overdistension or hemodynamic problems, and you need enough time for those airways to open and stabilize. The mid-range pressure of about 35–45 cm H2O held for roughly 40–60 seconds provides that balance: it reliably recruits alveolar units while limiting exposure to excessive pressures or prolonged holds. Shorter or lower-pressure attempts may not recruit effectively, while higher pressures or longer durations increase risk without clear added benefit. In practice, this range is commonly used to achieve meaningful recruitment while watching for stability in oxygenation and blood pressure.

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