MECHANICAL VENTILATOR

Question 1

Pressure breathing
device to maintain
ventilation and oxygen
delivery for a prolong
period.

Answer 1

mec vent

Question 2

purpose of mec vent

Answer 2

• air is delivered to pts with compromised ventilation
• oxygenate different organs
• expel co2
• provide comfortable breathing pattern
• breathe for patients who are compromised

Question 3

2 classification of mec vent

Answer 3

PPV - positive pressure mec vent
NPV - negative pressure mec vent

Question 4

*Given via face masks.
*Eliminates the need for endotracheal
intubation or tracheostomy
*Decreases the risk for nosocomial
infections.

Answer 4

Non-Invasive Positive Pressure
Mechanical Ventilator

Question 5

*Eases the work of breathing and
enhances gas exchange.
*Can be set with a minimum backup
rate for patients with periods of
apnea.

Answer 5

Non-Invasive Positive Pressure
Mechanical Ventilator

Question 6

indications for Non-Invasive Positive Pressure
Mechanical Ventilator

Answer 6

• respi failure
• pulmonary edema
• copd
• heart failure
• sleep apnea
• end of life

Question 7

c/i of Non-Invasive Positive Pressure
Mechanical Ventilator

Answer 7

• respi arrest
• serious dysrrythmias
• cognitive impairment
• head or facial trauma

Question 8

• Exert negative
  pressure on the
  external chest.
• Similar to
  spontaneous
  breathing.
• Simple to use.
• No endotracheal
  intubation
  needed

Answer 8

Negative Pressure Mechanical Ventilator

Question 9

*Inflate the lungs by
exerting positive
pressure on the airway.
*Endotracheal Intubation
or tracheostomy is
needed.

Answer 9

Positive Pressure
Mechanical Ventilator

Question 10

indications for Positive Pressure
Mechanical Ventilator

Answer 10

• decreased oxygenation
• increased co2
• pesistence acidosis

Question 11

Predetermine pressure.

Answer 11

pressure cycled

Question 12

• Preset time
• Use in newborn and infants

Answer 12

time cycled

Question 13

Volume of air to be delivered
is preset

Answer 13

volume cycled

Question 14

• Machine completely control the
  patient ventilation

Answer 14

controlled

Question 15

Patient triggers the machine

Answer 15

assist control (a/c)

Question 16

Machines allows the patient to
breath spontaneously providing
set FIO2

Answer 16

synchronized intermittent mandatory ventilation (SIMV)

Question 17

setting of mec vent

• Fio2
• tidal volume
• RR (BUR)

Answer 17

• conc of o2
• 10 to 15 ml/kg body wt
• 12-16 /min

Question 18

• POSITIVE PRESSURE IS
  MAINTAINED @ THE END OF
  EXPIRATION.
• INCREASE FUNCTIONAL
  RESIDUAL CAPACITY OPENS
  COLLAPSE ALVEOLI.
• IMPROVE OXYGENATION WITH
  LOWER FIO2

Answer 18

Positive End Expiratory Pressure
(PEEP)

Question 19

hazard of mec vent

Answer 19

decreased CO
monitor for signs of deceresed venous return
- low bp
- low uo

Question 20

complications of mec vent

Answer 20

*Airway Obstruction
*Tracheal Damage
*Ventilator Associated Pneumonia (VAP)
*Decreased Cardiac Output
*Atelectasis
*Alteration in GI Function
*Alteration in Renal Function
*Alteration in Cognitive perceptual status.

Question 21

what to do with high pressure alarm (obstruction)

Answer 21

• check secretion
• suction
• oral airway
• sedate

Question 22

what to do with low pressure alarm (leak / disconnection)

Answer 22

• check tube connections
• reconnect to vent
• replace leaking tubes
• auscultate LS
• monitor rr and breathing patterns
• elevate cuff pressure

Question 23

how to avoid VAP

Answer 23

• oral hygiene
• closed suction system
• avoid pressure ulcers
• elevate HOB > 30 degrees
• assess pt daily for extubation readiness
• ROM exercises

Question 24

3 stages of weaning

Answer 24

mec vent
tube
oxygen

Question 25

SIMV devise incorporated to MV. Allows patient to breath spontaneously as desired

Answer 25

Synchronized Intermittent Mandatory Ventilation (SIMV)

Question 26

methods of weaning

Answer 26

AC SIMV T-PIECE