1.9 ml saline + 0.1 ml serum sample = 1 in 20 dilution in the first tube. The subsequent tubes will be serially diluted as 1:40, 1:80, 1:160, 1:320, and so on.
3:15 _Place one drop of positive control_ 3:27 _Place one drop of patient serum_ 3:43 _Add one drop of each of antigen suspension_ *Please do tell, how many millilitres or micro-litres is **_1 drop_** ?*
Salmonella typhi o antigen suspension, salmonella H antigen suspension, salmonella para typhi AH antigen suspension, salmonella paratyphy BH antigen suspension, poly specific positive control control
Hi at 5:25 your representation of the dilution is wrong 80 microlitres is smaller than 40 microlitres and 40 is smaller than 20 so 5 microlitres should look big not small.
@@ibrahimhafez6073 What does this indicate? S. Thphi 'O' : 1:160 Dil S. Thyphi 'H' : 1:320 Dil S. Para Typhi 'AH' : 1:20 Dil S. Para Typhi 'BH' : 1:20 Di
This is nice,well explained. Thank you 😊
Please show, widal microscopy to diagnose best results
Thanks
If agglutination is at o and AH antisera then how it is salmonella typhi????
O andAH IS salmonella paratyphi A
Excellent presentation! Appreciate all the hard work put into it.
Finally i got the correct pronunciation
The best explanation i was searching all over😍
It was great video. Thank you so much.
That is really great content
how is 1.9 in 0.1 1:10 dilution?
It's 1:20 😅
Really very useful and easy to understand
what is the name of the author so i can cite you in my research. thanks
Very well explained 👏👏
Thanks ❤️
Hey
In the first tube you are adding 1.9 ml saline and 0.1 ml of sample. Is it dilution of 1:10 ?
No 1/20
Something is wrong in her dilutions
1.9 ml saline + 0.1 ml serum sample = 1 in 20 dilution in the first tube. The subsequent tubes will be serially diluted as 1:40, 1:80, 1:160, 1:320, and so on.
@labsforlifeproject then that means the first tube is actually 1:20 and not 1:10
I have the same confusion!
Please show, how widal microscopy is done to diagnose best results.
Can u start channel for pharm.d students
O =1:160
H = 1:160
AH =1:80
BH = 1:40
Help!
why are subtitles so terrible?!! auto-generated or not, there are too many words which are not at all relevant (not just this video)!
Gracias por compartir sus conocimientos😛👍
Best learning video
Thank you so much 🥰🙏💖
Thaks a lot really helped a lot ♥️♥️♥️
Useful, stay blessed!! Thanks🤩
Hi
very nice widal test thes posative test work in a gglotenation
En francais
What's the difference between Widal's test and passive hemagglutination test?
Why 1 ml is discarded from the last tubes of each row ?
Hi I want to thyroid test procedure and principles
Best explain one of the best good better best
Very very very good presentation
Svp
❤️
Y know how to explain dr.enx
Very impressive
3:15 _Place one drop of positive control_
3:27 _Place one drop of patient serum_
3:43 _Add one drop of each of antigen suspension_
*Please do tell, how many millilitres or micro-litres is **_1 drop_** ?*
I never see such explanation in RUclips
Thanks🥰
Widel test serum can change in yellow colour
Hinglish version needed
Nice explanation ❤
Widal test tube name?
Superb video
This is so enlightening. Thanks so much
Widal के लिए edta vail lena hai
What does each drop of the reagent equal exactly in micro-liters ?
40-50
Very helpful
Thanks very help full
Good explanation
Very nice video
Widal Meaning???
If titers are positive for TO and AH, shouldn't it be Salmonella Paratyphi A and not S. Typhi?
Yes, you are correct. If the titres are raised for TO and AH, then it is suggestive of Salmonella Paratyphi A infection.
Ys
Thanks a lot😇😊
Well Explain 😍😍
tq
Thank you!!
pls tell using reagents name
Salmonella typhi o antigen suspension, salmonella H antigen suspension, salmonella para typhi AH antigen suspension, salmonella paratyphy BH antigen suspension, poly specific positive control control
Also normal saline as negative control
Purpul cap
excellent
Good thnxxxxxxx
Nice²
thanks
Is widal test meant only for typhoid?
For typhoid and paratyphoid
Good
than you
😍 😍 😍
Useful 👍
Nice
Great
🔥🔥🔥🔥🔥💯💯💯💯
Can i use your video for my videos?
I guess the answer is "NO"
Very useful lecture... Thanks for this... 👌👌👌😘😘😘
Hana sardar
Hana sardar
Thanks for making a useful video.
Tnx next video
if its 1:80 for O and 1:160 for AH then isn't the person suffering from salmonella paratyphoid type A?
Thank you so much
ma'am what is 1:20 and 1:40 what is it
In tube :
The dilution in 1 tube is
1/20
Hi at 5:25 your representation of the dilution is wrong 80 microlitres is smaller than 40 microlitres and 40 is smaller than 20 so 5 microlitres should look big not small.
No
Wow really helpful.....Thanks ......
thank you
S. Typhi Antigen O 1:40
S. Typhi Antigen H 1:40
S. Paratyphi A (H) 1:20
S. Paratyphi B (H) 1:20
What does this Indicates?
negative widal test
and may repeat afterone week
@@ibrahimhafez6073 What does this indicate?
S. Thphi 'O' : 1:160 Dil
S. Thyphi 'H' : 1:320 Dil
S. Para Typhi 'AH' : 1:20 Dil
S. Para Typhi 'BH' : 1:20 Di