Part 4 Flashcards

1
Q

Changing the I:E ratio from 1:4 to 1:1 would have what effect on ventilation?

A

increase possibility of auto-peep

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2
Q

Bulk liquid storage remote from hospital

A

oxygen

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3
Q

Usually created by special hospital compressors with quarterly air quality monitoring

A

medical air

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4
Q

Banks of G or H cylinders with automatic switching & notification to engineering for replacement.
Highest pressure cylinders supply the pipeline at all times (switch from bank to bank)

A

nitrous oxide

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5
Q

Most reliably detects delivery of hypoxic gas mixtures is

A

o2 analyzer

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6
Q

PEEP increases which elements of lung volumes and capacities

A

functional residual capacity

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7
Q

If change from pressure control ventilation with an inspiratory pressure of 20 to volume control ventilation with a plateau pressure of 20 given everything else remains constant?

A

decrease in tidal volume

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8
Q

oxygen international cylinder color

A

white

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9
Q

Regulate how gas cylinders are manufactured, labeled, filled, transported, stored, and disposed of

A

DOT

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10
Q

the measure of the mean pressure being exerted on the alveolar wall during a mechanical breath

A

plateau pressure

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11
Q

Link 25 utilizes what components in order to achieve the 3:1 ratio

A

mechanical and pneumatic

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12
Q

adjustments that will lower peak airway pressure

A
  • changing I:E from 1:3 to 1:2
  • decreasing respiratory rate
  • reducing tidal volume
  • switching to pressure control ventilation
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13
Q

The best mode of ventilation in order to control the pressure being exerted on the alveoli but at the same time maximize the amount of tidal volume being delivered in a patient with poorly compliant lungs.

A

pressure control ventilation

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14
Q

changing only the I:E ratio from 1:1 to 1:4 will affect ventilation by:

  • increasing the inspiratory pause
  • increasing the plateau pressure
  • increasing the tidal volume
  • increasing the inspiratory flow rate
  • increasing the respiratory rate
A

increasing the inpspiratory flow rate

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15
Q

You are administering 1 L/min oxygen and 1L/min nitrous oxide using an older Datex-Ohmeda machine. There is a sudden loss of oxygen pipeline pressure which activates the fail safe system. You immediately switch to the onboard oxygen cylinder without adjusting the flowmeters. Describe the action of the floats in the flowmeter tubes:

A

Both floats go to zero and then rise badck to their previous values

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16
Q

Vapor pressure of iso, sevo, des respectively

A

240,160, 681

17
Q
A
18
Q

I:E

A

Normal range is 1:2

COPD patients is 1:3

19
Q

Determines rate of tidal volume delivery to the patient during mandatory volume control breaths

Affects I:E ratio & peak pressure

Faster rate –> faster into patient

A

Peak flow

20
Q

Peak pressure

A

airway resistance

21
Q

Plateau pressure

A

alveoli resistance

22
Q

Volume control independent variables

A

TRIPF

  • Tidal volume
  • respriatory rate
  • I:E ratio
  • FiO2
  • PEEP