Blood Typing Lab Video

What does the Anti-A serum react against?

• None of the antigens

• A antigens

• Rh antigens

• B antigens

Why is it important to use different toothpicks on each of the wells in your blood type kit?

• Statement is false you can use the same toothpick for all of the samples.

• It is important because the toothpick is the one reacting to the blood

• None of the choices are correct

• We are trying not to contaminate each well to get a valid result.

What should you do to ensure you can clearly see the results of the blood typing test?

• Use a magnifying glass

• All of the above

• Read results against a white background

• Increase the lighting in the room

What does Agglutination mean?

• Smoothening of the blood sample

• Clumping of the blood sample.

• Blood becoming Acidic

• Blood becoming Alkaline/Basic

What indicates a positive Rh factor in the blood sample?

• Smooth texture in the Rh well

• Clumping in the Rh well

• Color change in the Rh well

• No change in the Rh well

What is the result for a blood sample with clumping in the A well and clear in the B and Rh wells?

• A positive

• A negative

• AB negative

• O positive

You are doing a blood typing test and these were your results.
A - No reaction

B - Clumping

D / Rh = Clumping

What is the result of the Blood Type Test?

• A Positive

• B Positive

• A Negative

• B Negative

For this Blood Type Test the results were,

A - no clumping

B - clumping

D / Rh - no clumping

What is the blood type?

• A Positive

• B Positive

• O negative

• B Negative

How many possible blood types does humans have?

• 4

• 6

• 8

• 10

You were doing a blood testing and all the wells have clumping for your results, however, you only used one toothpick for all the wells. How would you interpret your results?

• Test is not Valid

• AB Negative

• O Positive

• AB Positive