non-invasive ventilation Flashcards

1
Q

BiPAP

A

bilevel positive airway pressure

cycle of high and low pressured to correspond to pts inspiration and expiration

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2
Q

when is BiPAP used

A

type 2 respiratory failure

usually due to COPD

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3
Q

criteria for initiating BiPAP

A
resp acidosis (pH L 7,35, PaCO2 >6) 
despite adequate medical treatment
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4
Q

BiPAP contraindications

A

untreated pneumothorax

pathology affecting face, airway, GIT

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5
Q

BiPAP. -what should be done before starting

A

CXR to exclude pneumothorax

where this does not cause a delay

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6
Q

IPAP

A

inspiratory positive airway pressure

pressure during inspiration, air is forced into lungs

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7
Q

EPAP

A

expiratory positive airway pressure

pressure during expiration, provides some pressure so airways dont collapse and helps air escape lungs in obstructive lung disease

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8
Q

BiPAP - monitoring pt

A

repeat ABG 1hr after every change

and 4hrs after that until stable

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9
Q

CPAP

A

continuous positive airway pressure

cont air blowing into lungs so air can move more easily in and out

used in conditions where airways prone to collapse

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10
Q

indications for CPAP

A

obstructive sleep apnoea
congestive cardiac failure
acute pulmonary oedema

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