Laboratory Manual for Human Anatomy & Physiology Main Version
4th Edition
ISBN: 9781260159110
Author: Terry Martin
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 42, Problem 2.2CT
Summary Introduction
To analyze:
Hemoglobin test is used to determine possible anemia.
Introduction:
Red blood cells are also known as erythrocytes. They act as respiratory gastransporters. Red blood cells composed of Hemoglobin. The hemoglobin is made up of globulin protein and heme.
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You are performing an experiment to diagnose three patients who are ill. In a hematology lab, you run a CBC using the hematology analyzer on all 3 of your patience blood samples, once you collect that data, you then conduct a blood smear/stain to get a better look at the 3 patients blood cells and compare those results to those of the CBC report. You conclude that patient 1 has malaria, patient 2 has sickle cell anemia, and patient 3 has hemophilia. Can you Identify your independent, dependent and controlled variables?
Melinda was working the day shift in the hematology laboratory. The laboratory’s protocol called for three levels of blood cell controls to be run at the following times: 1) at the beginning of the shift, 2) within each run of patient samples during the day and 3) any times reagents were changed. The mean for the low (abnormal) control for the red blood cell count was given as 2.00 x 10^12/L, the standard deviation was 0.15, and the confidence limit (acceptable control range) was 2.00 x 10^12/L +/- 2sd (or +/- 0.3).
The first morning low control result was 2.10 (x 10^12/L). In five subsequent runs, the low control results were 2.16, 2.19, 2.20, 2.22 and 2.25.
1. Do these values represent a shift, a trend, or neither?
2. Should Melinda be concerned about these values? Explain.
3. Does Melinda need to take any action?
Chapter 42 Solutions
Laboratory Manual for Human Anatomy & Physiology Main Version
Ch. 42 - Prob. 1PLCh. 42 - Prob. 2PLCh. 42 - Prob. 3PLCh. 42 - Prob. 4PLCh. 42 - Coagulation should normally occur within a. 10...Ch. 42 - Prob. 6PLCh. 42 - A normal blood total cholesterol level is less...Ch. 42 - The high-density lipoproteins (HDLs) are sometimes...Ch. 42 - Prob. 1.1CTCh. 42 - Prob. 2.1A
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