Lazar the RTR

09/22/2026

🎶 NEW SONG ALERT for X-Ray Students! 🎧

Studying X-ray physics? Make it stick with a catchy new song that breaks down some of the essential concepts every radiography student needs to know!

🎵 Learn about:

➡️ The Inverse Square Law
➡️ Frequency & Wavelength
➡️ X-Ray Beam Quality & Quantity
➡️ Fundamental Properties of the X-Ray Beam

Whether you're preparing for your next exam or brushing up on your radiography knowledge, turn up the volume and learn through music! 🎶

🎧 Listen here: https://www.youtube.com/watch?v=Y-XRB4fdcys

A song to help x-ray students easily remember the inverse square la...

09/18/2026

Get to know the woman behind the popular LANGE Q&A book as she shares her journey to...

▶️Becoming a Radiologic Technologist
▶️Educator
▶️Author

✚ Tips to how YOU can pass your upcoming ARRT registry exam.. and much more 👇

🎬 https://www.youtube.com/watch?v=uFmB-EzoRTM&t=744s

09/10/2026

New Episode | Rad Tech Life Podcast with D.A. Saia, author of LANGE Radiography Review Book... 🩻

👉Watch/Listen Here: https://www.youtube.com/watch?v=fFXUnJcS0VA

09/03/2026

08/27/2026

Every X-ray student standing next to you is going to be someone's coworker in a year or two.

Maybe even YOURS!

That idea came up in my new Rad Tech Life Podcast episode with Justice Talbot, an X-ray Program Director and the winner of the ARRT® 2026 “I Am the Gold Standard” Educator Award.
Justice believes clinicals should be the safest place a student will ever get to fail.

Why?

Because right now, they have YOU to shape them.
So instead of teaching students to stand in the corner until they’re sure they can get it right, what if we taught them:

1. To try without any pressure...
2. To think critically...
3. To make mistakes (without making an exposure), learn from those mistakes, and try again?

We also talk about getting rid of the “eat your young” mentality and what technologists can do to help create the kind of coworkers we actually WANT to work with.

If you work with X-ray students, I think you’ll enjoy this one 😉
Watch or listen here → https://youtu.be/fMtG-rL9A8c

Until then, train them up in the way they should go!
(Proverbs 22:6)

☢️If you’re an x-ray student trying to survive radiography school a...

08/21/2026

Radiobiology | ARRT® Registry Question

Which THREE of the following characteristics increase cellular radiosensitivity? (Select three)

A. high mitotic activity
B. lack of undifferentiation
C. high metabolic activity
D. mature specialization
E. lack of differentiation

Explain your answer. Visit www.youtube/ for free lessons and registry style exams!

08/21/2026

A reference radiation requires 20 Gy to produce a specific biological response. A test radiation requires 2 Gy to produce the same response. What is the relative biologic effectiveness (RBE) of the test radiation?

A. 0.1
B. 2
C. 10
D. 20

08/20/2026

Radiobiology | ARRT® Registry Question 🤔❓

Which of the following changes is generally expected as linear energy transfer (LET) increases?

A. RBE decreases
B. RBE increases
C. ionization becomes more widely spaced
D. biological damage becomes easier to repair

Explain your answer. Visit youtube/ for free lessons.

08/20/2026

Radiobiology | ARRT® Registry Question 🤔❓

A reference radiation requires 20 Gy to produce a specific biological response. A test radiation requires 2 Gy to produce the same response. What is the relative biologic effectiveness (RBE) of the test radiation?

A. 0.1
B. 2
C. 10
D. 20

Explain your answer. Visit www.youtube/ for free lessons.

08/20/2026

Radiobiology | ARRT® Registry Question 🤔❓

Which TWO of the following characteristics are associated with deterministic radiation effects? (Select two)

A. a threshold dose is present
B. probability alone increases with dose
C. severity increases as dose increases above the threshold
D. biological effects may occur beginning at zero dose

Explain your answer. Visit youtube/LazarTheRTR for free lessons.