Test Online Free ASCP Cert ASCP-MLT Exam Questions and Answers
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The red blood cell distribution width (RDW) increases as the severity of alpha thalassemia increases because of changing MCV as the bone marrow produces smaller cells. In addition, if Hemoglobin H bodies are present, they result in the formation of schiztocytes (RBC fragments) that can have an effect on the MCV and RDW.
The Red cell Distribution Width (RDW) in alpha thalassemia is
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Question 77Selectable Answer
The laboratory uses flammable chemicals for processing and staining patient specimens.
One type of chemical used is ethanol.
What is the proper way to store this chemical in the laboratory?
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Question 78Selectable Answer
Provide the equivalent measurement for 4 milligrams.
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Question 79Selectable Answer
The deposition of plaques containing cholesterol and lipids on the innermost layer of the walls of large and medium-sized arteries is the defintion of atherosclerosis.
Arteriosclerosis is a more general term that describes a thickening and loss of elasticity of the walls of the arteries (hardening of the arteries). Atherosclerosis is a type of arteriosclerosis but is not synonymous with it.
Atherosclerosis is not the most common outcome for risk marker studies because it can be hard to measure. Infarcts, cardiac procedures, death, and 'events' are more common. Most humans have visible or measureable atherosclerosis by early middle age.
Chemistry
Which of the following is true concerning atherosclerosis?
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Question 80Selectable Answer
Transmission-based precautions isolation categories include all of the following except:
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Question 81Selectable Answer
The two main areas of the clinical laboratory are:
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Question 82Selectable Answer
To prevent blood from clotting the specimen must be:
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Question 83Selectable Answer
A casual blood glucose >/= 200 mg/dL on a patient with symptoms and an A1C >/= 6.5% meet diagnostic criteria for diabetes.
Chemistry
A physician is evaluating a 45-year-old obese male for diabetes and orders a plasma glucose at time of evaluation and a HbA1C one week later. The patient has a family history of diabetes and currently exhibits symptoms of diabetes.
What would be the best course of action if these are the blood glucose results?
Casual Blood Glucose: 208 mg/dL
HbA1C one week later: 7.2%
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Question 84Selectable Answer
Black stopper tubes are used for glucose collections.
Question options:
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Question 85Selectable Answer
In combined fiscal years 2005 through 2009, transfusion-related acute lung injury (TRALI) caused the higest number of reported fatalities (48%), followed by hemolytic transfusion reactions (26%) due to non-ABO (16%) and ABO (10%) incompatibilities. Complications of microbial infection, transfusion-associated circulatory overload (TACO), and anaphylactic reactions each accounted for a smaller number of reported fatalities.
Answer: Explanation:
Reference: U.S. Food and Drug Administration Website. Fatalities reported to FDA following blood collection and transfusion: Annual summary for fiscal year 2009. Available at:
http://www.fda.gov/BiologicsBloodVaccines/SafetyAvailability/ReportaProblem/Transfusion
DonationFatalities/ucm204763.htm. Accessed Janary 7, 2011.
Which one of the following types of transfusion reactions caused the highest number of transfusion-related fatalities that were reported to the U.S. Food and Drug Administration (FDA) from 2005 - 2009?
Question 86Selectable Answer
In excess triglycerides, the triglycerides reduce the amount of cholesterol in LDL particles producing small dense LDL molecules. Because of size and density, these molecules more easily enter damaged endothelium and vessel walls and are more easily incorporated as plaque is formed.
Which statement best describes small dense LDL particles that can occur in atherogenic dyslipidemia?
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Question 87Selectable Answer
As magnification DECREASES, the opening of the iris diaphragm will...
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Question 88Selectable Answer
1+ reaction has numerous small clumps and cloudy red supernatant
2+ has many medium-sized clumps and clear supernatant.
3+ has several large clumps and clear supernatant
4+ has one solid clump, no free cells, and clear supernatant
BB
Tube-based agglutination reactions in blood bank are graded from negative (0) to 4+. A reaction that has numerous small clumps in a cloudy, red background is:
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Question 89Selectable Answer
Alpha-fetoprotein is a substance typically used in the triple test during pregnancy and for screening chronic liver disease patients for hepatocellular carcinoma.
Increased concentrations of alpha-fetoprotein (AFP) in adults are MOST characteristically associated with:
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Question 90Selectable Answer
Eosinophils do not have cytoplasm containing large purple/blue-staining granules. Instead, their granules are large but are orange/red in color. These granules are very distinctive for this type of cell, typically making their identification simple.
ll of the following statements describe an eosinophil EXCEPT:
