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Ultrasound Physics and Instrumentation Knowledge Check

Ultrasound Physics and Instrumentation Knowledge Check

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This Knowledge Check for ultrasound physics and instrumentation gives you an opportunity to test your foundational POCUS knowledge. Each question offers an explanation of the answer, and you'll receive feedback about your final score.

The ultrasound image above was obtained in the mid-longitudinal plane through the left lobe of the liver.

What is the artifact indicated by the red arrow called?

Dirty shadow

Edge shadowing

Clean acoustic shadow

Which ultrasound transducer would you select to perform a transthoracic echocardiography in an average adult male patient?

Phased array low frequency transducer

Curvilinear low frequency transducer

High frequency linear transducer

A 45-year-old female presented with right upper quadrant (RUQ) pain for 7 days. The patient has intolerance to fatty foods for the past 2 years. The following image was obtained while performing a RUQ ultrasound scan. Multiple gallstones were seen in the gallbladder. The physician activated color Doppler and positioned the color Doppler box over the gallstones. A color Doppler artifact was seen as seen in the image above.

What is the name of this artifact?

Color bleeding artifact

Aliasing artifact

Twinkle artifact

While obtaining a transverse view of the abdominal aorta, using low frequency curvilinear transducer, what should the probe orientation marker should be pointing towards?

The patient's right side

The patient's head

The patient's left side

The above ultrasound image was obtained while scanning a pregnant patient. The OB first trimester preset was selected. The image shows two acoustic parameters displayed on the image. They are MI and TI.

What does TI stand for?

Thermal index

Time interval

Thermal insonation

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