Quick answer
There’s no required high school course list for sonography — you become a sonographer through a college program, not a high school track. But a few subjects make the college prerequisites much easier when you get there. Physics matters most, because it comes back hard during your program and on the credentialing exams. Biology, anatomy, and math help too. Think of these as preparation, not rules. Taking them in high school doesn’t make you a sonographer; it makes the road smoother once you start.
That’s the honest framing. Below is which subjects actually pay off later, and why — so you can prepare without mistaking prep for a requirement.
Why there’s no required high school track
The premise is worth clearing up first, because it changes how you read everything else.
You don’t enter sonography from high school directly. The typical path runs through a college program — most often an associate’s degree — followed by credentialing exams. High school isn’t where sonography training happens. It’s where you build the foundation that makes that later training manageable.
So there’s no official “you must take these classes in high school” list. No program admits or rejects you based on a high school course alone. What high school courses do is prepare you for the college prerequisites — the science and math classes that sonography programs actually require for admission.
That reframes the whole question. It’s not “which classes do I need.” It’s “which classes, taken now, will make the required college courses less of a wall later.” Those are worth knowing.
Physics: the one that comes back
If there’s a single high school subject worth taking seriously for this path, it’s physics. And it’s not close.
Sonography runs on physics. The whole method is sound waves traveling through tissue and bouncing back — frequency, wavelength, attenuation, the behavior of the beam. Understanding how sound behaves in the body isn’t a side topic; it’s the core of how the imaging works.
That shows up concretely in credentialing. Before taking the ARDMS SPI exam — the Sonography Principles and Instrumentation exam that’s part of the credential — applicants must complete a physics course with a passing grade. Physics isn’t optional decoration in this field. It’s baked into the path to getting credentialed.
People who struggled with physics often report it was the part of their sonography program that surprised them most. Not because it’s impossible, but because they didn’t expect how much of the daily work depends on it. A high school physics class won’t cover everything you’ll need, but it builds the comfort that makes the college version less intimidating. If physics wasn’t your favorite subject, that’s genuinely worth paying attention to now.
Biology and anatomy
After physics, the life sciences are the next most useful preparation — for an obvious reason.
A sonographer images the body’s organs, vessels, and structures. Anatomy and physiology are required prerequisites in essentially every program, because you can’t recognize what you’re looking at on a screen without knowing what should be there in the first place.
High school biology and any anatomy offering build that base. They introduce the vocabulary and the systems — circulatory, digestive, reproductive — that the college courses go deeper on. Walking into college anatomy with that grounding makes a famously dense course more approachable.
This isn’t about memorizing everything in high school. It’s about not meeting the material for the very first time when the stakes are higher and the pace is faster.
Math
Math earns its place too, even though sonography isn’t a heavily mathematical job day to day.
The reason is partly the prerequisites — programs often require college-level math, and a solid high school math background makes those courses smoother. The reason is also physics, which leans on math concepts. Comfort with algebra and basic equations supports the physics that the field depends on.
You don’t need to be a mathematician to be a sonographer. The calculations on the job are limited. But the path *to* the job passes through coursework where math comfort helps, so the high school version is a reasonable investment.
Think of math here as supporting infrastructure rather than a destination. It props up the subjects that matter most.
What none of this guarantees
Here’s the honest limit, so the prep doesn’t get oversold.
Taking physics, biology, anatomy, and math in high school doesn’t admit you to a sonography program, doesn’t credential you, and doesn’t guarantee anything about the path ahead. Admission happens at the college level, against program-specific requirements. These high school classes just make that later stage less steep.
It’s also entirely possible to enter the field without having taken any of them in high school. People do it all the time — they pick up the foundation in college, sometimes with extra effort, sometimes by repeating a prerequisite. The high school version is an advantage, not a gate.
So if you’re still in high school and drawn to this field, *which of these subjects could you take now without much cost?* And if high school is behind you, none of this is a missed train — the actual requirements live in the college program, and that’s where they’re met. The prep just makes the meeting easier.
Key takeaways
- There’s no required high school course list for sonography — you train through a college program, so high school classes are preparation, not rules.
- Physics matters most: sonography is built on sound-wave physics, and a physics course (with a passing grade) is required before the ARDMS SPI credentialing exam.
- Biology and anatomy build the foundation for the anatomy and physiology prerequisites every program requires.
- Math supports both the program’s math prerequisites and the physics the field depends on, even though the job itself isn’t math-heavy.
- None of these high school classes admit or credential you — they make the later college prerequisites less steep, and you can enter the field without having taken them.