Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN: 9781133893943
Author: ESTRIDGE
Publisher: Cengage
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It is a system of monitoring analytic testing to ensure the reliability and accuracy of each measurement performed on a specimen.
It usually contains a low, normal and high reference range when medically significant decisions are made at each level.
It contains constituents at concentrations within healthy reference intervals or descriptions.
It contains analytic constituents at concentrations outside of the reference interval.
Jake, a phlebotomist, is sent to the emergency room (ER) to collect an EDTA specimen for a stat type and cross match on an accident victim. He properly identifies the patient and is in the process of filling the lavender top tube when an ER nurse tells him that the patient’s physician wants to add a stat set of electrolytes to the test order. Jake acknowledges her request. He finishes filling the pink top, and grabs a green top. After completing the draw, he takes the specimens straight to the laboratory to be processed immediately.
a. One of the specimens that Jake drew is compromised. Which one is it?
b. Why is the specimen compromised and how may the test results be affected?
c. How could Jake have avoided the problem without drawing the patient twice?
Please explain:
A laboratory scientist working the night shift receives a sample for send-out testing. The test is ordered infrequently, so the laboratory scientist consults the reference laboratory manual for instructions on how to process the sample. The processing instructions say to send two samples, a serum sample and a 1:100 dilution of serum, both refrigerated.
1. The sample received by the laboratory is in a gold-topped tube with a serum separator. Is this sample adequate to process for the send-out test? Select the best letter choice and give a brief explanation.
A. Yes. The tube is adequate for a test requiring serum.
B. No. This tube is not adequate for a test requiring serum.
2. The laboratory scientist confirms that the sample is adequate for processing. What is his next step? Choose the best letter answer and give a brief explanation.
A. Putting the sample in the refrigerator
B. Centrifuging the sample
C. Starting to make the required dilution for the test
D. Mixing the…
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