APRV

Question 1

If the patients has a compliance of 25ml/cmH2O and the delivered pressure is 20 cmH2O. What is the tidal volume?

Answer 1

500 ml

Question 2

Explain why the flow vs time waveform shows flow rates decelerating during a pressure support, volume support, pressure regulated volume control, adaptive pressure control, airway pressure release ventilation and pressure control breaths.

Answer 2

As the pressure in the lungs begin to equilibrate to the pressure from the ventilator, the gradient decreases so the flow decreases over time.

Question 3

When the Servo i and u ventilators are set to the PRVC/APC mode, what can cause the PIP to drop to the peep level?

Answer 3

If the patient exceeds the set targeted volume, the pressure drops shifting the WOB onto the patient.

Question 4

What is the unique and necessary feature of the clear elbow that connects a NIV mask to a single limb breathing circuit used on the V60 ventilator?

Answer 4

Anti- asphyxia valve, needed if the vent stops delivering pressure and flow.

Question 5

Explain or write the formula for lung compliance including the units of measure.

Answer 5

compliance is the relationship between volume and pressure .

Units=ml/cmH2O

Question 6

What ventilator data should you measure(explain the procedure) to avoid ventilator associated lung injury? Name 2 parameters and the safe limits, with the units of measure.

Answer 6

plateau pressure and driving pressure.Obtained by performing an insppiratory hold Pplat 25-30 cmH2O,
Driving Pressure= 15 cmH2O

Question 7

What is the common color of the elbow that attached a NIV mask to dual limb breathing circuit?

Answer 7

BLUE

Question 8

On the V60 ventilator, in the ST mode, what alarms acts as the apnea alarm, and how do you set it?

Answer 8

Low rate alarm and set it to 1-2 breath higher than the set rate

Question 9

The ________ vs time graph is the graph necessary to identify if the patient is experiencing flow starvation.

Answer 9

PRESSURE

Question 10

When administering High Flow Therapy to a patient, how much PEEP are the lungs experiencing if the flow is set to 50 liters per minute?

Answer 10

5 cmH20 peep

Question 11

What set parameter terminates an APC/PRVC delivered breath on all mechanical ventilators?

Answer 11

Inspiratory time

Question 12

COPD patient, phycian orders the following settings: S/T mode, IPAP 10 cmH2O, EPAP 4 cmH2O, Rate 8 breath/min, inspiratory time 1 sec, O2 60%, risetime 0.2 sec.
patient data: vt=450ml, spo2 85%, f=26, pt leak 18-20 L/min.
what pressure support is the patient on?

Answer 12

6 cmH2O

Question 13

Physician wants to improve the patients oxygenation without increasing the FIO2. What would you recommend?

Answer 13

Increase the EPAP

Question 14

After increasing the EPAP to 6 cmH2O, the VT dropped to 350ml and the physician requests a target VT of 600 mL. Explain why this occurred and what parameter changes would you reccommend.

Answer 14

The EPAP increasing with no increase in the IPAP caused the PS to decrease. So therefore, I would recommend increasing the IPAP.

Question 15

If the IPAP increase why would the leak rate increase?

Answer 15

more pressure going into the system can cause an increase in leak

Question 16

Patient complains of too much flow. What parameter change might make the patient more comfortable.

Answer 16

Decrease the rise time

Question 17

Can the respironics V60 ventilator be used for invasive ventilation? What guidelines should the clinician follow?

Answer 17

The V60 ventilator can be used for invasive ventilation.

The clinician should follow lung protective strategy guidelines.

Question 18

what is the difference between the V60 and the other mechanical ventilators?

Answer 18

The V60 has a single circuit limb that comes with a DEP attachment.

Question 19

What is the purpose of the DEP?

Answer 19

It allows the patient to exhale CO2

Question 20

Is it important for the V60 to deliver humified gas?

Answer 20

Yes

Question 21

What color elbow do we use on the single limb circuit?

Answer 21

clear elbow

Question 22

What is special about the clear elbow?

Answer 22

It has an anti asphyxia valve

Question 23

What is the hopital term for skin break down?

Answer 23

H.A.P.I
Hospital Acquired Pressure Injury

Question 24

What does it mean when a mask is non-vented?

Answer 24

The mask does not have anywhere for the patient to exhale.

Question 25

The clear elbow is for which circuit?

Answer 25

Dual limb circuit

Question 26

If you have a vented mask with an anti asphyxia valve. How do we place it onto a single circuit limb?

Answer 26

We remove the DEP and attach the pressure monitoring line tubing to the mask

Question 27

Why we should not use the blue elbow on a single circuit limb?

Answer 27

The blue limb does not have an anti asphyxia valve.

Question 28

How can we determine what size mask is appropriate for the patient?

Answer 28

We can use a sizing gauge to measure patient face.