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ARDMS Exam SPI Topic 2 Question 8 Discussion

Actual exam question for ARDMS's Sonography Principles and Instrumentation exam
Question #: 8
Topic #: 2
[All Sonography Principles and Instrumentation Questions]

Penetration can be improved by decreasing which setting?

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Suggested Answer: B

In ultrasound imaging, penetration refers to the ability of the ultrasound beam to travel deeper into the tissue. Lower frequency transducers produce sound waves with longer wavelengths, which are less attenuated by the tissues and therefore can penetrate deeper into the body. Conversely, higher frequency transducers produce sound waves with shorter wavelengths that provide better resolution but are more quickly attenuated, resulting in less penetration. Therefore, decreasing the frequency of the transducer improves penetration, allowing for better visualization of deeper structures.


American Registry for Diagnostic Medical Sonography (ARDMS). Sonography Principles and Instrumentation (SPI) Examination Review Guide.

Contribute your Thoughts:

Edmond
2 months ago
Wait, did they just ask us to improve 'penetration'? I think I need to re-read the question a few times to make sure I understand what they're really asking. Haha, this exam is getting a little spicy!
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Madelyn
2 months ago
Decreasing the frequency? Now that's an interesting idea. Lower frequencies tend to have better penetration through obstacles. Although, I'm not sure that's the 'correct' answer the exam is looking for.
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Chan
2 months ago
Haha, I bet the answer is 'Sector width'! Gotta love those trick questions that make you think outside the box. Shrinking the coverage area can't hurt, right?
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Devora
1 months ago
Let's agree to disagree, I'm sticking with 'Gain' as the answer.
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Kayleigh
1 months ago
I see your point, but I still think 'Sector width' is the best choice.
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Gilberto
1 months ago
Really? I would have guessed 'Frequency' myself.
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Edward
2 months ago
I think it's actually 'Output power', not 'Sector width'.
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Cecilia
3 months ago
Hmm, I'm not so sure. I was always taught that decreasing the output power is the way to go for better penetration. You want a more focused, concentrated signal, right?
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Ammie
3 months ago
I think decreasing the gain would improve penetration. Gain is directly related to signal strength, so lowering it should help the signal travel further.
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Casie
2 months ago
C) Gain
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Rasheeda
2 months ago
Lowering the gain can definitely help improve penetration.
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Essie
2 months ago
D) Sector width
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Daron
2 months ago
C) Gain
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Myra
2 months ago
B) Frequency
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Chandra
2 months ago
A) Output power
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Stephanie
3 months ago
I think C) Gain could also be a factor in improving penetration.
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Irma
3 months ago
But wouldn't decreasing output power also help improve penetration?
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Wilford
3 months ago
I disagree, I believe it's D) Sector width.
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Irma
3 months ago
I think the answer is A) Output power.
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