A Mechanically Ventilated Patient with COPD Is Receiving Partial Ventilatory

question 14

Multiple Choice

A mechanically ventilated patient with COPD is receiving partial ventilatory support with PSV.The respiratory therapist notes a sudden rise at the end of each breath on the pressure-time graphic.What action should the respiratory therapist take at this time?

• A) Change the mode to PRVC.
• B) Change the mode to VC-CMV.
• C) Lower the flow cycle setting.
• D) Adjust the pressure support level.

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Definitions:

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale.

Diseconomies of Scale

The phenomenon where an increase in production leads to higher costs per unit due to inefficiencies that arise from scaling up operations.

Increasing Returns

An increase in a firm’s output by a larger percentage than the percentage increase in its inputs.

Diminishing Returns

A principle stating that after a certain point, additional investment or effort yields progressively smaller increases in output.