How do pregnancy tests work? - Tien Nguyen 

If more schools decide to teach sex ed they should totally use these videos

I feel bad for the HCG. They do not look happy

Egyptian child to mother, "Why does this bread taste funny?"

Man gets positive on a pregnancy test “Honey...come here please.....”

impressive how advanced Egyptians were.

If you wait 9 months and no baby comes out, you weren't pregnant

The fact that the Egyptians realised that the urine was something to test, and the test they designed, for their time this is really impressive!

"Yay im pregnant" - guy who doesn't know he has testicular cancer

Wait... So Egyptian wait until next harvest to get the result. I'm pretty damn sure people can tell by their own eyes by then.

Better yet, how the Fuk did Egypt think of peeing on some seeds??

As a person who designs these tests, you explain it well for a layman. However, there are errors in your description. The secondary antibody doesn't attach a dye. Usually, the colour is produced by a colloidal gold particle (which is pink to red in colour), already attached to the second antibody. When the first zone is crossed, the urine interacts with the particle, but the particle is also moistened and begins to move WITH the urine sample and flow into the other zones where it is captured. You can confirm this by taking apart an unused pregnancy test, and a used one. You will see the "dye" (the gold particle) no longer is present in the first zone on the conjugate pad.

3:51 doctor: “You were so brave during your tests! Here, have a floating red orb for being such a brave girl!”

I really liked learning about the ancient Egyptians' pregnancy test! So cool!

so men can use a pregnancy test to see if they have testicular cancer?

2:46 these animatioms r just so cute !!!!!!

I love how the test was called “Prego Presto”

Those egyptians were full of tricks! I woudn't be surprised if they had wheat cars or something hehehe

me: *_i still have my V card but i'm scared to take a pregnancy test._*

Those tests can be insanely sensitive. I had such a low reading the doctors were astonished I knew I was pregnant 3 weeks in. My cycle was abnormal so I checked. The good news was short lived. I had lost the baby one week after finding out. It is also called a chemical pregnancy that early on (I'm fine now). Still. Dang. Red dye based pregnancy tests work best, btw.

Oh My God, the animations are sooo hilariously good, I laughed at the cuteness and the way the story is told. ITS THE BEST!!

0:30 Wow, dem Egyptians... why you so smart?

Is it weird I want to purchase the shower curtain at 0:50

I like how the HGC squirms as the Y bois hold him down while smiling

03:35 The most shocking day in a man's life 😂😂

Fun fact: the urine test you take at the doctor's office is no more specific than the one you take at home. The one that is more specific is the blood test (that's the one that can tell exactly how pregnant you are)

This is the first time I have seen a TED - Ed video made by a Vietnamese educator. Now I feel so proud because I'm Vietnamese too. Go, Tien Nguyen, go!

this would be such a good video to watch while waiting for results

Ur graphics and the mini stories told....which are basically just the functions of hormones, are amazing....it can literally capture attention people till the very end😂😂 Great job

Cringed @ 3:46 when the obgyn stuck a bloody needle in her coat pocket.

Me: " Yeah, I've performed a controlled experiment 😎 " Teacher: " Oh, what was it? " Me: " aha.. pregnancy test " 😂

TED ED is my ever favourite channel on RU-vid. I learn a lot of things which I didn't learn from school.

I do know about all the hormones mentioned and their functions and are quite accurate but never the functioning of kits. Thanks TED-Ed ♥️♥️♥️

im a male but I'm still watching this

Well, ectopic pregnancies aren't false positives. They're pregnancies too.

Well made lesson TED group, as always!

I'm 17 years old, no girlfriend, live with my parents. Why the RU-vid recommend this for me ?

70% accuracy!! I'm impressed!!

3:34 Why schould a men use a pregnancy test ??

this video should get some kind of Oscar... so informative, funny, cute, even historic.. thank you

Can we please take a moment to appreciate this sundial watch at 4:14

I saw that exact test in a history video but I thought it was something very faulty and couldn’t prove pregnancy but after watching this video, I was stunned

3:37 LOL the animation and the narration

Teenage pregnancy - test postitive Teenager - “Well, at least I witnessed the process of the scientific method”

It’s so nice to understand the mechanism underlying test now as a biochem student

0:57 "Honey pass me the gun"

I just watched animated pee... and I learned something. Take that Science .... wait a second.

It is so easy to understand more why the second redline apprears, thanks lot

Now I understand how it works. Thanks to the genius animation

I actually never wondered about this till it popped up on my recommendations list lol

Thanks for this. This is so informative. I never knew about this. It's really amazing. And a useful video. People must have found it beneficial. Keep sharing such videos.

0:20 “woohoo your pregnant!” *immediately gets a 9 month belly*

why did i watched this whole thing while im being 13 years old omg i never got any likes on my youtube comment 😭 thank u all for the advice though

"Mom I'm pregnant." Mom: I'm so proud of you! Your father always wanted a 2nd child. *Sweet Home Alabama*

I thought that at the beginning of the video she said "The earliest known pregnancy" and im like "wait HOW DID WE REPRODUCE BEFORE- oh its pregnancy TEST, ah ok I'm dumb"

Ted-Ed answer most of the questions I didn't know I had

I hated the wait for the results on both my children. But loved when my wife gave me that look when we got the results.

It's one in the morning and I have a test tomorrow. Yep I should watch this

How do pregnancy tests work when one is on the pill?

Loved the way you explained

I love the illustration in the video

This video is excellent! It's exactly what the lecturers teach in med school, and public should also know about this

I love the cartoons. An the info too!

You can literally hear how happy she is when she said the last part.

3:20 "Hey kid, wanna pregnancy test"

A very nice and informative video. However the use of antibody-enzyme fusion proteins as described in the video is not the case with the vast majority of the home pregnancy tests. Most of the assays rely on gold- or latex nanoparticles to generate the visually detectable signals.

this way good info I learned a thing or 2about something I know about but didn't know about.

Makes sense, thanks for the info!

To all the men who don't know why RU-vid recommended this video to us. I want to say that it's warning if we've got testicular cancer or not. So please watch it all and use pregnancy test to check if you're positive or not.

I have noticed that inventions from before were practical, easy to find and zero waste eco friendly materials. Just awesome. 🎉 Hoping they will revive and teach us the ancient secrets . If only the great library weren't burned down, we would have discover more 🌺

1:00 I love this animation

I really love your work, thanks for sharing

*Wow i’ve learnt a lot from this video! Thanks!* 😄

I didn't understand well, so I'm watching again

I had a friend once who had a pregnancy scare in like freshman year. She was broke but also needed to take it before her parents found out. I gave her 20$, I hope she’s doin well. She was really nice

Ted-ed videos always tell me things I didn't know I needed till I see the thumbnail

I take a home covid test one time and now these videos are all over my recommended.

1:55 that animation of travelling with Sunglasses on Anzyme😂😂

How do people come up with such peculiar ways to know things?

This is the cutest illustration ever

I love TED-Ed they make gr8 videos

2:24 I didn't know that period could happen during the pregnancy test stick!

These facts are quite interesting ❤️

Love this animation 👌

I already watched this video 3 years ago but watching it again cuz I forgot that I watched it, meet you 3 years later

I once had to take a pregnancy test because of my operation I was happening and it came back negative and I wondered how it could work (the pregnancy test)

Speaking of pregnancy, my aunt is giving birth in 10 days (December 26 after Christmas the best gift our family could have lol)

This really did teach me something!

Thank you for your amazing videos

When I looked at the pineapples I was like PPAP

the animation is so freaking cute haha!

Wow...the animation....👍👍👍

The animations are really cool 😂

I keep telling myself “one more video” but then I click on another.

Welcome to another episode of *Where Quarantine has brought me* 😂😂😂

Man This is why I like Ted. For one I learn the thing I wanted to. secondly I learnt something new about the Egyptian method. and last but not least in the extra resources in the description they also include the source for the research paper that proved the Egyptian method

Thanks doe this very important information

why im i watching this xD

I tested 2 days before MP was due and got very strong positives with a Wal-Mart blue dye test & dollar brand test & tested again next day with FRER on normal and digital and got more positives.

Creativity gud concept ...thanq madam

- it seems that the video's idea belongs to a vietnamese person