Test 1: Ventilators

Question 1

this type of breath ensures a present tidal volume

Answer 1

volume cycled breath

Question 2

this type of breath applies a constant pressure for a preset time. It produces a square wave.

Answer 2

time cycled breath

Question 3

this type of breath, called pressure support, delivers a constant pressure applied throughout inspiration, and terminates when the initial flow rate of the patients respiration is about 25%

Answer 3

flow cycled breath

Question 4

This type of ventilation gives a preset Tv or a preset applied pressure, and must deliver breaths at a preset minimum rate. Breathing above and beyond that by the patient is there own. But this can easily get out of sync. Used for patients in respiratory failure.

Answer 4

Assist control ventilation

AC

Question 5

This type of ventilation provides a preset level of inspiratory pressure that assists the patients own spontaneous breaths. The patient has the most autonomy with this one.

Answer 5

Pressure support ventilation

Question 6

This type of ventilation delivers mandatory ventilation and a mandatory preset rate but. Volume cycle most commonly used. This is initially set to deliver full ventilatory support, then decreased as the patient tolerates spontaneous breathing. This type commonly uses pressure support to augment spontaneous breaths.

Answer 6

Synchronized Intermitten Mandatory Ventilation

Question 7

This type of ventilation delivers unassisted ventilator breaths at a preset rate. All breaths are mandatory. No spontaneous breaths are allowed.Not many vents have such a setting. Most often used in the OR

Answer 7

Controlled Mechanical Ventilation

Question 8

Recommended initial Vt setting

Answer 8

8-10ml/kg (but height is now used)

Question 9

A normal minute ventilation rate

Answer 9

7-8 L/min

Question 10

What do you adjust to produce a desired PaCo2 level that allows for appropriate acid/base status?

Answer 10

Minute ventilation

Question 11

What 3 variables affect Po2?

Answer 11

FiO2
MAP (Mean airway pressure)
PEEP

Question 12

What 3 variables affect PaCO2?

Answer 12

RR (more so than Vt according to colby)
Dead space
Tidal Volume

Question 13

PEEP initial setting and max setting

Answer 13

5, no higher than 15

Question 14

Initial Fio2?

Answer 14

100% or 1.0

Question 15

In choosing a RR and minute ventilation, target what….pH or Pco2?

Answer 15

pH

Question 16

Inspiratory plateau pressue should be maintained at less than _______ cm H20

Answer 16

< 30 cm H20

Question 17

normal I:E ratio

Answer 17

1:2

Question 18

How to reduce the chance of auto-peep

Answer 18

Decrease the RR, decrease Vt, increase Gas flow rate (less impact)

Question 19

Reduce Fio2 to what eventually (within 24 hours)

Answer 19

50% as soon as possible