An ambu (artificial manual breathing unit) device is connected to a patient. Ambu and lungs of thepatient are formed a closed system. The pressure value of the closed system PI = 755mmHg, the initialvolume of lungs is VL=5L. The initial volume of ambu is VA=1L. Ambu is manually controlled and when itis squeezed to 50% of its initial volume the lungs volume is increased by AV. AV= 582 mL. What will bepressure value (in terms of mmHg) of the closed system after the ambu is squeezed? (PS=?)

The total volume of the closed system before squeezing the Ambu is the sum of the volume of lungs…

Answered: An ambu (artificial manual breathing…

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