How to Measure a Patient for an EEG (10-20 system)
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- Опубликовано: 27 мар 2022
- My name is Jared Beckwith, I’m a registered EEG technologist. In this video I show how to measure a patient for EEG electrode placement using the international 10-20 system. Most of the marks are 10% or 20% of the total distance measured.
1. Measure front to back
2. Measure side to side
3. Measure around the head like a headband
4. Front horseshoe
5. Back horseshoe
6. Crossing marks Fp1 to O1
7. Crossing marks Fp2 to O2
Watch the video for more detailed instructions on how to practice measuring with the 10-20 system. You will be doing EEG’s in no time!
teaching my friend the 10-20 system EEG electrode sites
• teaching my friend the...
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When that math start mathing when you did around the head those eyes got big I’m right there with you 😂
Haha calculating the math in your head is rough sometimes!
I am so glad I found you. I use to work as a Neurology tech and I have been out the field for almost 3yrs now.
I have an opportunity that has come up to work as a neurodiagnostic tech. I'm excited but also nervous..I want to make sure that if I go back I take the steps to get registered.
Your videos have been so helpful! I will be reaching out if I get back in the field.
Hey I’m glad you enjoy my videos. I’m here to help if you run into any problems trying to get registered
@Jared Beckwith, R. EEG T. Thank you!
Jared, I am sharing this with a student. Nice hob explaining-I would add for students that you should ALWAYS mark your landmarks.
Hey Barbara, thanks for sharing!
This has been so helpful for me with my training! Thank you so much ❤️ 😊
Thanks for watching Caitlin, I’m happy I could help you ❤️😊
Thanks! never delete this vid. Very helpful! =)
You can refer back to it anytime 😊
Hello. love the teaching 10/20 placements. This has helped me. Are you able to do something on ambulatory especially the wrapping
That’s a good idea, I haven’t done a video on wrapping the head yet. Thanks for watching & your feedback
I just want to thank u so much u r so helpful ( last week was my first week as EEG student tech )
Hi Hana, welcome to the field of EEG! I’m happy to help you learn with my videos. 👍
Let me know if you need help measuring and I’ll help you 😊
Could you please show a video of a mannequin with hair and how to separate the hair cleanly? I know you have showed measuring with hair but it'd be super helpful to see how to part long hair into ponytails or braids to make measuring a breeze. I measure great with a bald mannequin but the one with hair is a struggle. Thank you for all the valuable info!
I have seen some students practice on a mannequin with braided hair, but I’ve never done it. I measure on top on the hair, and use my pen to mark the scalp underneath. It’s going to be difficult at first, because you won’t be able to see your marks through the hair. I suggest to double check the most difficult ones in the back T5/T6 and O1/O2. Don’t judge yourself too harshly and just keep practicing! I’ll make more videos to help you 😊
@@jaredbeckwith Thanks for your reply! I will be tested by my manager at the hospital (they are testing all employees) and the mannequin they are using has an afro so I am nervous. I practiced a bit but going over the hair actually messes up the measurements because of the thickness it's inaccurate. Appreciate all your help and advice! (: sitting for my board exam in 6 weeks so your vids are very helpful.
@@christinegiannetti7358 haha yes I remember messing up measuring a patient with an Afro. Just really aggressively part the hair before measuring and you’ll figure it out. I appreciate your support on my videos!
Can you make a video about comb electrodes and how to apply them to the head?
Great teacher i like your videos
Thanks Christina, I think you’re great too 😊
Thank You for the video, when You measure FP2 to O2 it's 24 and you have distance 6. where the 6 come from?
Fp2 to F4 (25%)
F4 to C4 (25%)
C4 to P4 (25%)
P4 to O2 (25%)
25% of 24 is 6. I hope this helps!
So helpful--thank you!!
This was so helpful
Thanks! I really like these videos
Appreciate the support, I’ll keep making them for you my friend!
Hello Jared!
I cannot understand why the distance on the headband from Fpz to Fp2 is 5% and then 10% to O2, and not 10% and 20% as drawn in diagrams 10-20?
Explain please🤷🏻♀️
I think it’s confusing because Fpz and Oz are just landmarks down the midline, and we don’t actually place electrodes there. The distance between actual placed electrodes end up being all 10% in the headband. Ex: (Fp1 to Fp2) & (O1 to O2)
Go around right side like this
Fpz to Fp2 5%
Fp2 to F8 10%
F8 to T4 10%
T4 to T6 10%
T6 to O2 10%
O2 to Oz 5%
Then go around left side like this
Fpz to Fp1 5%
Fp1 to F7 10%
F7 to T3 10%
T3 to T5 10%
T5 to O1 10%
O1 to Oz 5%
I usually skip the final 5% measurements to Oz because no electrode goes there, but it’s good to check your work when first learning.
So just started doing eegs I'm a ma in my clinic been in neuro 6 years. I'm only given a1 hour window for set up, photic, and clean up. 21 leads, I don't use a tape measure, maybe I need to and I like to start in the center then I normally make my way back in rows, endings with the Oz and the ones behind the ear.
Since I never officially had a tech teach me, we are all just crossed trained. I've tend to memorize the spots, but in the future for a R eeg T . Would measurement always be required?
I always try to measure when possible. If wires are too close it makes the signal flatter, if wires are too far it makes the signal higher than normal. Precise measurement is also important in patients preparing for surgery. It sounds like they are rushing you requiring 1 hour for the study. I’d suggest to your boss to allow more time so you can measure, which will give the doctor better quality recordings.
@@jaredbeckwith With a" too close" and " too far" readings altering data , it would imply a helmet or stretchy hat with fixed probe distances would be good for a recording that is done on a weekly to month to year basis.
Dearone good presentation I understood well👍
Thanks Dr Badwe!
Thanks for the video. When you mark real patients how does it work when they have a full head of hair? Do you need to shave, or do you place the electrodes as you measure? Seems like it might be difficult to find all the markings
Bald patients are definitely the easiest haha. You have to do your best to mark on the scalp through the hair. Never shave patients, you have to get good at parting the hair to get to the scalp when placing electrodes. It is difficult to find the markings in thick women’s hair, so you have to know the electrode site locations very well. It comes with practice after doing enough EEGs!
@@jaredbeckwith I can imagine. I’m hoping to start Labouré in September. All the admission documents submitted. Now i have to contact Neurodiagnostic departments in my area to get a clinical site.
Good luck finding a site! Just get a list of all hospitals in your area
Best video to reference too?
Hi Jared, I'm new to learning the 10-20 system. I am trying to practice my measurements by using the ABRET measurement assessment form. Could you please do a video on how this form is filled out and how you get the difference? Thank you for any help that you can provide me.
1. Fpz_______Fz_______Cz_______Pz_______Oz Difference_____
2. T3_______C3_______Cz_______C4_______T4 Difference_____
(T7)
Great video idea, I’m sure a lot of other people have the same question.
Step 1: Measure & mark the head
Step 2: Check the measurements and write the actual distances.
For example Nasion to Inion is 34 cm
When checking your marks, you found them to be these numbers:
Fpz 6.4 Fz 6.4 Cz 6.5 Pz 6.8 Oz
Difference between largest & smallest measurement: 6.8-6.4 = 0.4 which is passing since under the limit of 1.0.
When you’re doing the “head band” measurements, your measure ment from fp1 to f7 should be 5.5, THEN another 5.5 from f7 to t3??? There is no way you were landing directly on the cross section of t3. Another 5.5 would but way beyond the back of the ear. I’m so confused.
@@Marx-Lennon Fpz to Fp1 is 2.75 (5%). Then 5.5 from Fp1 to F7 (10%), then 5.5 from F7 to T3 (10%). And keep going 10% to O1.
@@jaredbeckwith thanks for responding. I understand how we are supposed to measure, however when I do it, it don’t measure up.
Had to refresh!
Hello Jared, I'm a paramedic and I got hired as an EKG tech in a hospital. I received a phone call after I accepted the position notifying me that I will be assisting with EEG's also. I start in 2 weeks and I don't wanna look like a complete idiot. Do you think I can learn enough to assist in two weeks? My part will be everything with the patient and the EEG tech with do the EEG monitor and the computer.
2 weeks is enough to learn the fundamentals and be ready for your first patient. The EEG tech will appreciate it if you’ve already memorized the electrode sites.
1. measure and mark the head
2. scrub spots with prep
3. place electrodes where you scrub
4. make sure each electrode is under 10k ohms impedance on the computer.
5. Rescrub electrodes that are higher than 10k ohms impedance. Once the electrodes are under 10k ohms, you know they have a good connection.
6. Start the EEG!
If you are doing long term EEG setups, you’ll have to do an extra step of putting gauze on top of the electrodes with a glue called collodion and dry it with an air hose.
Don’t worry my friend, you’ll be great after some practice. Let me know if you have any questions and I’ll do my best to help you!
Thanks soo much
Hello Jared I’ve been offered an opportunity to become an EEG at my hospital and quite nervous. Your video is very helpful. My question to you is what are some tips or sites I could look at for better studying of becoming EEG?
I would Google “10-20 system” so you learn all the electrode spots on the head. After that, learn how to measure and mark a mannequin head. Once you can do that, start to time yourself and increase your speed. The faster you are in practice, the easier a real patient will be. At first, don’t worry about interpreting the EEG waves since it’s ultimately the doctor’s job. When starting out, focus on doing your best to put all the wires on in the correct spots. Your first patient will take a long time, but you will improve with experience. Practice makes perfect 👍
Thanks for you advice because I knew not where to start.. After watching your videos honestly I can say your a great instructor. I already have learned my placement I just now need to practice with 10-20 and progress everyday I get a chance to practice
So what kind of tape you use for the head
@@jamarcusgaltney5794 at the hospital I use a disposable paper tape. For practice I use a retractable tape. Anything that measures centimeters works
Hey Jared im getting hung up on measuring and locating for FT9 and FT10
I never learned how to measure for FT9/FT10. They’re located down near the preauricular points where you measured from earlier.
What is the difference between 16 32 40 channel eeh
With more channels you can add things like EKG and eye monitors. You can also more precisely localize epileptic activity with additional channels.
Hey Jared what are the steps you took to become a registered Eeg technician? I currently have a certificate but I am not registered but have been doing eeg exams for about two years now
Document that you’ve done 50 EEGs, and you can apply for the registry exam. You can see all the ways to become registered and print the documentation form on the ABRET website: abret.org/index.php?cID=682
You should find your front to back and side to side measurements first. Create a cm chart so it's easier to do the math to find the 10% and 20% and 50% placements. It is more accurate to find the CZ center most point first and work your way down/around for the F's,C's and P's. The T's should start from the ear and the Fp's should start from the nose and O's start from the back of the head. It is more accurate than starting at the ear and working to the other side.
Great feedback, I think it will help a lot of people. 😊
I’ve learned to do the inion to nation first than side to side. And to get the 20 percent, add the total number together and move the decimal over. I think it just depends on the region you’re learning from.
Hi Jared, firstly, thank you for such a helpful video. Then, I'd like to ask you some questions that might need some lengthy input from you. Is there anyway I could send you an email?
Hey I’m glad you found it helpful! Can email me jared@aioneeg.com
I’m a tech in Atlanta would you ever consider training and placing people for
Eeg?
That’s a good idea, it would probably be hard to make connections with a bunch of hospitals though. I can always answer any questions you have on here for free too
@@jaredbeckwith I do it now for nursing as a former eeg tech it wouldn’t be hard it’s just a thought!
What is the fpz do you mean fp2?
Good question! FpZ is 10% up from the nasion (middle of forehead) You won’t place an electrode there, but it is a mark you need to make that will help you measure the headband (circumference) and make the Fp1/Fp2 marks.
So I have to be good at math to do this job ?
The only math you do on this job is taking 10% and 20% of different measurements. You also need to know how to subtract negative numbers for the board exam. There’s no advanced calculus or crazy math involved.
When I started my program last yr all my classmates including me had to use calculators bc we were rusty. Now we can do it in our heads bc it is easy math!! This was definitely one of my concerns before I started too :)
Jared recommend a beginners eeg book…..BEGINNERS …
“Rowan’s Primer of EEG” has some nice pictures. I’ll try to make more videos for beginners as well!
It will be better if you do a demonstration on a real person in an inclined position
You’re right, I need to make a video using a real person next!