Edi Basics
Edi Catheter
NAVA Settings
Troubleshooting
Weaning & Backup
100

This acronym represents the electrical activity of the diaphragm.

What is Edi?

100

The Edi catheter is a modified version of this tube.

What is an NG or OG tube?

100
NAVA stands for:

What is Neurally Adjusted Ventilatory Assist?

100

This patient is NOT a candidate for NAVA because respiratory drive is absent.

What is a patient with apnea?

100

The first backup mode used in NAVA is:

What is pressure support?
200

Edi is measured in these units.

What are microvolts (μ V)?

200

Besides monitoring Edi, the catheter can also be used for these two purposes.

What are feeding and medication administration?

200

A breath is triggered when Edi changes by this amount above Edi minimum.

What is 0.5 μV?

200

A low or absent Edi signal may occur in patients who are:

What are heavily sedated?

200

The apnea backup mode is:

What is Pressure Control?

300

Normal Edi Peak values are approximately:

What are 5-10 μV?

300

The Edi catheter connects directly to this ventilator family.

What is the Servo-I/Servo-U?

300

The NAVA level determines this.

What is the amount of pressure support delivered?

300

This nerve injury may result in absent Edi activity.

What is phrenic nerve injury?

300

NAVA is weaned primarily by reducing this setting.

What is the NAVA level?

400

As diaphragm workload increases, this value typically does what?

What is Edi increases?

400

A CO2 detector on the catheter indicates this incorrect placement

What is tracheal placement?

400

Increasing the NAVA level causes Edi to generally:

What is decrease?

400

If the upper leads are highlighted on the positioning screen, the catheter is:

What is too deep?

400

During an SBT, NAVA level is usually set to this value.

What is 0?

500
The normal resting Edi range is:

What is 0-10 μV?

500

Name two methods used to confirm proper Edi catheter placement.

What are ventilator positioning screen, CXR, expiratory hold, epigastric auscultation, or centimeter depth verification?

500

A patient has:

Edi Peak = 15 μV
Edi Min = 5 μV
NAVA Level = 1

How much pressure support is delivered?

What is 10 cmH2O?
500

If the bottom leads are highlighted on the positioning screen, the catheter is:

What is too shallow?

500

True or false: The Edi catheter must be removed immediately after extubation.

What is False? It may remain in place after extubation.

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