Ventilators

Question 1

what does high pressure alarm indicates?

Answer 1

indicates that there is a high resistance to airflow

Question 2

what does low pressure alarm indicates?

Answer 2

indicates that there is a low resistance to airflow

Question 3

main indication of high pressure alarm

Answer 3

obstructions

Question 4

main indication of low pressure alarm

Answer 4

disconnections

Question 5

3 types of obstructions

Answer 5

• kinks on tube
• water condensing within the dependent tube
• mucus secretions along the airway

Question 6

what to do when you see that the tubes are kinked?

Answer 6

unkink

Question 7

what to do when you see that the dependent tubes are filled with water?

Answer 7

empty the tube or remove the water

Question 8

what to do when the airway is being obstructed with mucus secretions? (before suctioning)

Answer 8

change position ( turn-cough-deep breathe)

Question 9

how many times you must do suctioning?

Answer 9

as necessary ( do more turning!)

Question 10

2 types of disconnections?

Answer 10

• main tubing disconnected

* oxygen sensor tubing disconnected

Question 11

what to do when the main tubing has been disconnected?

Answer 11

reconnect the main tube

Question 12

what is the main function of the oxygen sensor tubing?

Answer 12

• senses FiO2 (The ratio of partial pressure arterial oxygen and fraction of inspired oxygen, sometimes called the Carrico index, is a comparison between the oxygen level in the blood and the oxygen concentration that is breathed.)
• measures FiO2 (O2 being delivered)

Question 13

ABG reading: when the ventilator setting is too high (over ventilating)

Answer 13

Respiratory Alkalosis

Question 14

ABG reading: when the ventilator setting is too low (under ventilating)

Answer 14

Respiratory Acidosis

Question 15

Situation: The client is on a ventilator machine then doctor ordered: weaning from ventilation. The next day, ABG result is: Respiratory acidosis (under ventilating). What should the nurse do?

a. follow the doctor’s order
b. call Respiratory Therapist
c. hold the order and call the doctor
d. begin to decrease the ventilator settings

Answer 15

c. hold the order and call the doctor

the client is already under ventilating and Weaning from mechanical ventilation is the process of reducing ventilatory support, ultimately resulting in a patient breathing spontaneously and being extubated. however the ABG result on the next day shows Respiratory acidosis which means the client is experiencing under ventilation, so we need to hold the order and call the doctor for further instructions. if only the ABG result showed Respiratory alkalosis (over ventilating) then we can proceed to follow the doctor’s order.