Ventilation Flashcards

1
Q

indications for ventilation

A

respiratory failure
cardiac insufficiency
neuro dysfunction

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2
Q

breathing is based on a

A

neg pressure system

ventilators use a pos pressure system

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3
Q

alveolar minute volume =

A

respiratory rate x effective tidal volume (TV - dead space)

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4
Q

common causes of abnormal gas exchange

A

hypoventilation and V/Q mismatch
Can correct hypoventilation by increasing minute ventilation
Can correct V/Q mismatch by increasing amount of lung that is ventilated or by improving perfusion to those areas that are ventilated

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5
Q

what can we manipulate on ventilators

A

minute volume
pressure gradient
surface area

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6
Q

how do newer control modes work

A

machines may act in assist-control, with a minimum set rate and all triggered breaths above that rate also fully supported.

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7
Q

vent synchronizes IMV “breath” with patient’s effort

A

SIMV
Vent tries to synchronize with pt’s effort
Patient takes “own” breaths in between (+/- PS)

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8
Q

high freq oscillatory ventilation

A

extremely high rates

high rate, low tidal volume

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9
Q

only diff b/w pressure limited and volume limited

A

PIP or PAP

tidal volume

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10
Q

nrl tidal volume setting
PEEP
FiO2
rate

A

6-8 ml/kg ideal body weight
3-5
100% and wean
12 for adult,15 for adolescent/child, 20-30 for infant/small child

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11
Q

how to troubleshoot

A

Look at the patient !!
Listen to the patient !!
when in doubt, disconnect the pt and begin BVM

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12
Q

NPPV (noninvasive positive pressure ventilation) aka BiPAP is used mainly for

A

HF, pulm edema, COPD

C/I in MI/arrhythmias

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13
Q

best way to determine if ET tube is in right space

A

end tidal CO2

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14
Q

most important skill to learn

A

BVM

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