You're buying coffees for your clinical team before a 6am shift.
Tap to add coffees. Watch the pattern.
Tap here
0
Coffees
$0
Total cost
More coffees, more cost. The cups drew the pattern for you.
When two things are directly related, this rising pattern always appears.
Key Terms
SPI Exam Topic
Directly Related
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Directly Related
When one value increases, the other increases too.
The sky got brighter as your mouse went up. The cost went up when you added coffees.
Intensity
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Intensity
How strong or powerful the sound wave is.
In ultrasound, more power = more intensity = brighter image.
Amplitude
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Amplitude
How tall the wave is from its resting position to its peak.
Taller wave = louder sound = more energy.
Proportional
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Proportional
Values that increase at the same rate.
Double the coffees, double the cost.
In ultrasound, recognizing direct relationships lets you predict what will happen when you change a setting. You already did this on the Explore tab: you just didn't know the name yet.
Quick check
The power setting was increased. What most likely happened to the image brightness?
Before
After
Concept Recall
If you increase intensity, what happens to amplitude?
Concept Recall
Drag each pair to the correct category:
Move together
Move opposite
Coffees & Cost
Intensity & Amplitude
Sleep & Screen time
A machine setting goes from 2 to 4. If the output is directly related to the setting, the output:
Concept Recall
Review Complete
You've finished the direct relationships check-in.