Safety

Question 1

What needed to be checked after connecting to your patient?

Answer 1

1. Assess patient and ventilator system
   - -> synchrony
   - -> alarm is appropriate
   - ->waveform
   - ->patient vital signs

2, ensure tidiness and safety of circuit

3. BVM, intubation tray close by

Question 2

What are the type of high and low pressure alarm?

Answer 2

Circuit pressure (set 5 - 10 cmH2O above PIP)
Ventilator pressure
Input pressure

Question 3

Which PB840 alarm is always active?

Answer 3

high circuit pressure alarm

Question 4

When does the severe occlusion alarm go off in PB840

Answer 4

• The patient circuit is severely
  occluded

1. The ventilator enters occlusion status cycling
   - ->by opening the safety and exhalation valve (so that patient can still breath)

The
elapsed time without
ventilatory support is displayed.

Question 5

What happen to PB840 when the high pressure alarm goes off

Answer 5

it will cycle to peep

Question 6

What is the result of ventilator inoperative?

Answer 6

• cannot use vent until maintenance is done
• safety valve will open
• could be a hardware or software problem
• need to replace ventilator

Question 7

When does the safety valve open?

Answer 7

1. Both gas supplies lost
2. Severe Occlusion
3. Vent Inop
4. System pressure > 100 cmH2O

Question 8

What is the purpose of the Disconnect sensitivity of PB840?

Answer 8

it detects a disconnect when the expiratory pressure transducer measures no circuit pressure and no exhaled flow during the first 200 ms of exhalation

• used for VT discrepancies (such as disconnect between wye and patient

Question 9

What does the Dsens monitor

Answer 9

Expiratory pressure
Expiratory flow
Delivered volume
Exhaled volume

Question 10

What is the function of the apnea interval (TA)?

Answer 10

• an alarm that goes off when there is no breath trigger by patient or ventilator following the TA interval

Question 11

What does the TA reset?

Answer 11

Alarm will reset if two patient breaths are detected, with > ½ of original VT

Question 12

How is apnea interval measured?

Answer 12

TA is measured from the start of an inspiration to the start of the next inspiration and is based on the ventilator’s
inspiratory detection criteria

Question 13

what happens if the Paw high alarm of evita goes off?

Answer 13

upper alarm limit for the airway pressure has been exceeded. The
device immediately reduces the airway pressure to the set PEEP. If this
is not successful and the upper alarm limit is exceeded by 5 cmH2O,
the airway pressure is reduced to ambient pressure.

Question 14

What is the hose kinked alarm about in Evita?

Answer 14

inspiratory pressure exceeding 30 cmH2O is measured for more

than 30 seconds during O2 therapy.

Question 15

How does peep high alarm go off in EVita?

Answer 15

• The measured PEEP is higher than the set value:
  – higher by 8 cmH2O for 2 ventilation cycles or 15 seconds
  – higher by 5 cmH2O for 10 ventilation cycles

Question 16

How does thhe Pressure meas. error go off in evita?

Answer 16

• The internal pressure sensors cannot be automatically calibrated.
• The pressure difference between inspiratory and expiratory pressure
  sensors has been greater than 5 cmH2O for 30 seconds

Question 17

how does the disconnect alarm go off in evita?

Answer 17

At Minimum PEEP of 3 cmH2O
Set PEEP not reached during exhalation
Delay time > or = 5 seconds