I cannot teach anybody anything, I can only make them think. — Socrates

I love this thought. This is really my view of learning. I have so many people that want me to help the learn every single formula for Ultrasound Physics. But that’s not what it is about. It’s about the relationships. So if instead of memorizing the formula you can sit back and really think about the problem. The answer will be there waiting for you.

For example; what do we know about Pulse Repetition Frequency. Well, it’s the number of pulses that occur in one second. So if the question asks “What happens to the Pulse Repetition Frequency if the depth of the image is increased?”. Let’s think about this. We don’t have to know the formula, though it may help save a few seconds. If the Pulse Repetition Frequency is the number of pulses that occur in a second and the machine has to wait for the pulse to return before sending another then if we increase the depth the Pulse Repetition Frequency has to go down. The machine has to wait longer to send another pulse so there will be less pulses per second. Decreased Pulse Repetition Frequency.

Being able to think about problems rather than trying to memorize answers is the key to taking the test with confidence.

If there is a concept that just baffles you put it in the comments and we’ll see if we can come together and get to a point where you understand the concept enough to be able to think about it.


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I am the founder and lead Instructor here at ExamRefresh.com. I strive to help those that are entering the field of Ultrasound to be the best that they can be. Ultrasound is my passion.

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  1. Dena saccucci says:

    The way you explain physics is amazingly easy to understand! I wish I found your site sooner.
    Thank you so much for your help!!!

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