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Dreyers tube is narrowtube with a conical bottom for H agglutination which helps to see loose cottony wooly clumps at bottom.
Felix tube is round bottom used for O agglutination and positive result appears as disc like pattern at the bottom of the tube.
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∙ 13y ago
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How you do widal test?
Widal test is done by qualitative method or quantitative method. Quantitative method:-Take a set of 8dry clean test tubes. Place 1.9ml saline in tube no.1 and 1ml saline in rest of tubes. Add 0.1ml serum in 1st tube mix well it is dilution of 1:20 Transfer 1ml diluted serum from tube no.1 to tube no. 2 and so on. Through tube no.7 discard 1ml of fluid after mixing. leave 1ml saline in tube no.8. Add one drop of appropriate antigen(use only that antigen suspension which has given a positive reaction in screening test. Mix well and incubate overnight at 37.c Examine for agglutination. Interpretation:- Only a titre above 1:80 should be considered as significant A rising titre (done each week)is considered to be definite evidence of infection.
What is another name for a test tube?
another name for test tube is culture tube or sample tube
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
How could you test if argon is a non metal?
You first get a bowl of tap water, get a test tube with the argon in it. Take out the cork screw out of the test tube. Get a splint put it over the test tube when you open it and it it pops that means it is a metal
What is the difference between widal slide test Antigen and widal tube test antigen?
widal slide is easier and it save time but widal tube test is not easy and it takes time.
How you do widal test?
Widal test is done by qualitative method or quantitative method. Quantitative method:-Take a set of 8dry clean test tubes. Place 1.9ml saline in tube no.1 and 1ml saline in rest of tubes. Add 0.1ml serum in 1st tube mix well it is dilution of 1:20 Transfer 1ml diluted serum from tube no.1 to tube no. 2 and so on. Through tube no.7 discard 1ml of fluid after mixing. leave 1ml saline in tube no.8. Add one drop of appropriate antigen(use only that antigen suspension which has given a positive reaction in screening test. Mix well and incubate overnight at 37.c Examine for agglutination. Interpretation:- Only a titre above 1:80 should be considered as significant A rising titre (done each week)is considered to be definite evidence of infection.
Where was the test tube made?
when was test tube first made,when and who?
What are the classifications of test tube?
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
What you must do to inspect the drink tube assembly?
perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test
Why do we use a Geiger-Mueller tube?
A geiger-mueller tube is used in the detection of ionizing radiation.
What is the source of error when using a test tube?
A test tube (or sample tube) has no errors.
Uses of test tube brush?
Test tube brush=use for cleaning test tubes
What is used to grip test tube?
Test tube holder
What is a test tube clamp used for?
Clamping a test tube
Can you place a hot test tube in a test tube rack?
no.
What is test tube stand used for?
to hold the test tube
