TEE Equipment, Infection Control, and Safety

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1. Which of the following IS NOT an absolute contraindication to TEE?

1 point

Esophageal tumour

Esophageal diverticulum

Esophageal stricture

Esophageal laceration

Large hiatus hernia

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2. For the probe pictured below, which of the following options is INCORRECTLY labelled?

1 point

Number 1 - Neutral position indicators

Number 2 - Medial/lateral control

Number 3 - Anterior/posterior control

Number 4 - Detent brake actuator in locked position

Number 5 - Image plane rotation buttons

Other:

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3. Which of the following is TRUE regarding probe maintenance?

1 point

Mild soapy water can be used on the entire probe, including the transducer connector

Bleach solutions of less than 10% can be used on the transducer and shaft.

Isopropyl alcohol-based products (70% or less) can be used on the transducer and shaft.

Disinfection by immersion is the accepted method of infection control for transesophageal transducers.

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4. Never bend the shaft of the transducer into a circle with a diameter of less than __________.

1 point

2 feet

1.5 feet

1 foot

6 inches

The shaft should never be bent into a circle.

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5. The first step in cleaning the TEE probe by immersion is:

1 point

Gently dry the distal tip and flexible shaft with a sterile cloth or pad, or allow it to air dry.

Lightly wipe only the steering mechanism and handle with a pad moistened with rubbing alcohol (70% isopropyl alcohol), or use approved cleaners as directed on the handle and steering mechanism.

Use an enzymatic pre-cleaner or detergent to remove all organic matter and other residue.

Disinfect the distal tip and flexible shaft by placing them in the appropriate disinfectant.

Hang the transducer on a wall-mounted rack and let it air dry.

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6. The automated TEE prober cleaner uses the following solution:

1 point

alcohol

bleach

glutaraldehyde

benzoic acid

remylene

Other:

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7. Which of the following pathogens is most resistant to disinfection with glutaraldehyde?

1 point

bacteria

HIV

enterovirus

hepatitis B

mycobacterium tuberculosis

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8. Which of the following is TRUE regarding probe insertion?

1 point

A bite block should be placed prior to probe insertion.

The wheels should be locked to prevent unintentional flexion during insertion.

The probe should be anteflexed slightly on entry.

Laryngoscopy should never be used to facilitate insertion, as this can dislodge the ETT.

The head should be turned away from the TEE machine for the best angle of entry.

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9. The incidence of TEE related complications is:

1 point

0.2%

10%

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10. The most relevant intensity with respect to tissue heating is:

1 point

Spatial peak temporal average

Spatial peak temporal peak

Spatial average temporal peak

Spatial average temporal average

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