Transesophageal Echocardiography in Cardiac Arrest

Question 1

This echocardiography involves placing a probe into the esophagus through the ET tube.

A Transesophageal echocardiography (TEE)
B. Transthoracic echocardiography (TTE)

Answer 1

A. Transesophageal echocardiography (TEE)

Question 2

Which type of echocardiography is best used to guide resuscitation?

A. Transesophageal echocardiography (TEE)
B. Transthoracic echocardiography (TTE)

Answer 2

A. Transesophageal echocardiography (TEE)

Question 3

T/F: TTE should only be performed in the 10 second pulse check window. If unable to acquire the heart in that time, compressions should resume.

Answer 3

True

Question 4

This TEE view shows all four chambers of the heart.

A. mid-E long view
B. mid-E4
C. mid-T4

Answer 4

B. Mid-E4

Question 5

In the case of “pseudo-PEA,” what conditions might be discovered with trans-esophageal echocardiograpy?

Answer 5

• Ventricular wall standstill 2/2 MI
• Pulmonary embolism (may see a “clot in transit”)
• hypovolemia (how?)

Question 6

Describe how the mid-E4 view may be used to guide chest compressions?

Answer 6

• By evaluating the aortic valve and its opening, one can direct compressors to push harder and faster to open the valve

Question 7

Some evidence suggest that compression over the ____ may increase ejection fraction in resuscitation. This can be guided by TEE.

A. Right ventricle
B. Left ventricle
C. Sternal body

Answer 7

B. Left ventricle