ASCP-MLT MCQs
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ASCP-MLT Exam Questions
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Medical Laboratory Technician - MLT (ASCP)
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Question: 105
Class C fires involve: Question options:
grease or oil
electrical equipment
wood
flammable materials
Question: 106
The intended response is Vitamin B12 and folate deficiencies. Each of these conditions lead to a megaloblastic production of the red blood cells in the bone marrow. Since vitamin B12 and folate are needed in order to produce a synchronous development of the nucleus with the cytoplasm in hematologic cells, oval-macrocytosis often occurs if these nutrients are not in adequate supply within the body. This can also affect neutrophils, allowing for the characteristic hypersegmented nucleus.
The photographic field contains several oval-macrocytes and a hypersegmented neutrophil with greater than 5 nuclear segments. Oval macrocytes are most commonly associated with pernicious anemia and malabsorption syndromes leading to vitamin B12 and folic acid deficiencies.
Clinical information relating to chronic infection, aplastic anemia, and other hematologic maligancies provide the context for the presence of the oval macrocyte.
Macrocytic erythrocytes and hypersegmented neutrophils are not present in thalassemias or in Pelger-Huet anomaly (hyposegmented neutrophils).
Conditions suggested by the macrocytes and the neutrophil in the photograph to the right include which of the following?
Thalassemia
Vitamin B12 deficiency
Pelger-Huet anomaly
Question: 107
hs-CRP is a more sensitive version of the C-reactive protein (CRP) test, a test that has been used for many years to assess inflammation in settings such as lupus, transplantation, infection, etc.
Which of the following cardiovascular risk markers is a more sensitive version of a test that is used to assess inflammation?
Oxidized-LDL
hs-CRP
ApoB/ApoA1
LpPLA2
Question: 108
Which of the procedures listed below will increase the platelet concentration in the preparation of Platelets?
Centrifuge the blood at a low speed, remove the plasma and spin the plasma again at a low speed.
Centrifuge the bood at a low speed, remove the plasma and spin the plasma again at a high speed.
Centrifuge the blood at a high speed, remove the plasma and spin the plasma again at a high speed.
Increase the duration of rotation
Question: 109
The production of long, tapered phialides is one of the key identifying features of Trichoderma species. In contrast, Penicillium species, produce phialides with blunt ends.
The phialides of Beauveria species are geniculate, forming a zig-zag pattern.
The arrows in the image on the right point to single, long, tapered phialides that extend laterally from either side of the hyphae. This is an identifying feature of which of the fungi listed below?
Trichoderma species
Penicillium species
Question: 110
HbsAg is positive in acute and chronic Hepatitis B infections, since the antigen is found on the actual surface of the virus. HbeAg is present in the blood when the hepatitis B viruses are replicating, indicating an active infection. Anti- Hbc IgM is present due to the immune response to the presence of the hepatitis core antigen and indicates an acute infection. Anti-HBs is generally interpreted as indicating recovery and immunity from hepatitis B virus infection, according to the CDC.
Given the following results, what is the immune status of the patient? HbsAg: positive
HbeAg: positive
Anti-HBc IgM: positive Anti-HBs: negative
acute infection
chronic infection
immunization
susceptible
Question: 111
Each of the drugs/drug classes listed above have been known to cause drug-induced hemolytic anemia, although cephalosporins are the MOST COMMON cause. Cephalosporins can cause drug-induced hemolytic anemia when a patient produces antibodies to the particular cephalosporin drug in the presence of red blood cells. The drugs can alter the membrane appearance of the red blood cells, causing the body to mistake them as foreign. Complement becomes activated due to these antibodies; red cells are then destroyed causing hemolytic anemia. Dark urine, caused by intravascular hemolysis, is one of the most common symptoms associated with this condition.
Which one of the following drugs/drug classes is the MOST COMMON cause of drug-induced hemolytic anemia?
Levodopa
Quinidine
Cephalosporins
Levofloxacin
Nonsteroidal anti-inflammatory drugs (NSAIDs)
Question: 112
The tube of choice for trace metal analysis is:
red
royal blue
gold
light blue
Question: 113
Acute hemolytic transfusion reactions are most commonly due to ABO-incompatible blood being transfused to a recipient with naturally occurring ABO alloantibodies (anti-A, anti-B, anti A,B).
Acute intravascular hemolysis as the result of a blood transfusion is most often associated with which of the following causes?
Transfusion of ABO incompatible red cells
Allergies
Passively transfused antibodies to HLA antigens
Transfusion-associated graft-versus-host disease
Answer: A
Question: 114 Lower right image
Chains of large, lemon-shaped annelloconidia
Aspergillus niger
Microsporum canis
Scopulariopsis species
Acremonium species
Question: 115
Only non-self antigens can be immunogenic. Self antigens are normally recognized by the immune system as part of the host, so an immune response does not normally occur. Non-self antigens are immunogenic since they have the potential to cause an immune response.
For a substance to be immunogenic it must be:
A linear molecule
A lipid
Less than 5,000 molecular weight
Recognized as non-self
A haptene
Question: 116
Gating sets up boundaries around a subset of data points to segregate those events for analysis.
Gating the proper cell population is crucial for flow cytometric analysis. The CD marker information presented on the histogram data is only representative of the cells inside the gate.
When analyzing the raw data of a sample on the flow cytometer, CD marker information on the histograms represents data inside the population.
Gated
Non-gated
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