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A CSI lab tech has just completed a series of Kastle-Meyer tests on several red stains on a...

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A CSI lab tech has just completed a series of Kastle-Meyer tests on several red stains on a suspect's shirt. In all cases, after hydrogen peroxide is added, a pink color appears after 5-10 min. Please answer the following questions:

A) What is the result?

B) Why?

C) What would also need to be done to ensure that the test and procedure are being done correctly and the results are reliable? Why might a defense attorney ask if a positive and negative control had been done properly?

Blood

Blood is the mechanism by which the body is able to transport oxygen to the tissues, as well as remove carbon dioxide from the tissues. The molecule that facilitates this is called hemoglobin, and it is the major constitute of blood.

Answer and Explanation: 1

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The pink result indicates a positive result - the sample contains blood. The colour change occurs due to the hydrogen peroxide reacting with the heme...

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Serology: Tests, Techniques & Purposes

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Chapter 10 / Lesson 12
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Serology is the study of blood and other body fluids. Explore the tests and techniques used in serology and understand the purpose of performing these tests.


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