How Much Patient Effort Is Needed to Trigger a Ventilator

question 28

Multiple Choice

How much patient effort is needed to trigger a ventilator breath when there is 8 cm H₂O of unintended positive end-expiratory pressure (auto-PEEP) and a pressure trigger setting of 2 cm H₂O?

• A) 2 cm H₂O
• B) 6 cm H₂O
• C) 8 cm H₂O
• D) 10 cm H₂O

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Definitions:

Hemolymph

The fluid equivalent to blood in most invertebrates, occupying the interior of their bodies.

Malpighian Tubules

Excretory and osmoregulatory system components found in insects and other terrestrial arthropods.

Gut Wall

The lining of the gastrointestinal tract, characterized by layers of tissue that facilitate digestion and absorption of nutrients.

Flame Cells

Collecting cells that have cilia; part of the osmoregulatory system of flatworms.