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ASCP Medical Laboratory Technician MLT
Practice Exam Questions and Answers 100%
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David Mungai [Date] [Course title]
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ASCP Medical Laboratory Technician
MLT Practice Exam Questions and
Answers 100% Pass
If the dilution is 1:100, and the average platelet count from both
sides of the hemacytometer counting chamber in 2 mm2 is 68,
what is the calculated platelet count?
A. 680,000/mm3
B. 6,800/mm3
C. 68,000/mm3
D. 680/mm3
E. 34,000/mm3 - Answer>> C;
A simple way to calculate platelet counts on the hemacytometer is
to multiply the average platelet count between the two sides of
the chamber by 1,000. In this case 68 x 1,000 = 68,000 platelets.
The longer derivation is as follows:
The standard dilution of blood for platelet counts is 1:100;
therefore the dilution factor is 100. The volume of diluted blood
used is based on the area and depth of the counting area. The area
counted is 1 mm2 per side (since we are using the average platelet
count, we only use the area of one side) and the depth factor is 10.
((Total number of cells counted x dilution factor x depth
factor(mm)) / area in mm2) = platelets per mm3
Which branch of the immune system has an immediate response
on first exposure to a foreign antigenic stimulus?
A. Cell Mediated
B. Specific
C. Humoral
D. Innate - Answer>> D;
https://www.stuvia.com/en-us/user/Lectdavian
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The innate immunity system is inherent and nonspecific; meaning
that all pathogens are attacked similarly. The skin, mucus in
respiratory tracts, acid pH, and others are all examples of the
innate immunity system that the body has to prevent infection
upon first exposure.
A two-year old male patient has the following hemogram results:
Hgb = 6.7gms/dl
Hct = 20%
Platelets = 355,000/ mm3
RBC = 3.0mil/cmm
WBC = 8750/cmm
Differential = 6 eos 20 segs 68 lymphs 6 monos
Which of the following is the MOST likely diagnosis?
A. Dietary iron deficiency
B. Idiopathic thrombocytopenia
C. Lymphocytic leukemia
D. Thalassemia minor
E. Lead poisoning - Answer>> A;
We can rule out answer Idiopathic thrombocytopenia since the
platelet count is normal. We can also exclude lymphocytic
leukemia because the WBC is normal. Thalassemia minor can be
excluded because thalassemia patients usually have only mild
anemia. Finally, lead poisoning cannot be the answer since this
condition does not usually cause severe anemia. The RBC, Hct,
and Hgb are all very low, and this fits the picture of iron
deficiency anemia.
The purpose of C3a, C4a, C5a, the split-products of the
complement cascade, is to:
The correct answer is highlighted below
https://www.stuvia.com/en-us/user/Lectdavian
ASCP Medical Laboratory Technician MLT
Practice Exam Questions and Answers 100%
Pass
https://www.stuvia.com/en-us/user/Lectdavian
,https://www.stuvia.com/en-us/user/Lectdavian
David Mungai [Date] [Course title]
https://www.stuvia.com/en-us/user/Lectdavian
,https://www.stuvia.com/en-us/user/Lectdavian
ASCP Medical Laboratory Technician
MLT Practice Exam Questions and
Answers 100% Pass
If the dilution is 1:100, and the average platelet count from both
sides of the hemacytometer counting chamber in 2 mm2 is 68,
what is the calculated platelet count?
A. 680,000/mm3
B. 6,800/mm3
C. 68,000/mm3
D. 680/mm3
E. 34,000/mm3 - Answer>> C;
A simple way to calculate platelet counts on the hemacytometer is
to multiply the average platelet count between the two sides of
the chamber by 1,000. In this case 68 x 1,000 = 68,000 platelets.
The longer derivation is as follows:
The standard dilution of blood for platelet counts is 1:100;
therefore the dilution factor is 100. The volume of diluted blood
used is based on the area and depth of the counting area. The area
counted is 1 mm2 per side (since we are using the average platelet
count, we only use the area of one side) and the depth factor is 10.
((Total number of cells counted x dilution factor x depth
factor(mm)) / area in mm2) = platelets per mm3
Which branch of the immune system has an immediate response
on first exposure to a foreign antigenic stimulus?
A. Cell Mediated
B. Specific
C. Humoral
D. Innate - Answer>> D;
https://www.stuvia.com/en-us/user/Lectdavian
, https://www.stuvia.com/en-us/user/Lectdavian
The innate immunity system is inherent and nonspecific; meaning
that all pathogens are attacked similarly. The skin, mucus in
respiratory tracts, acid pH, and others are all examples of the
innate immunity system that the body has to prevent infection
upon first exposure.
A two-year old male patient has the following hemogram results:
Hgb = 6.7gms/dl
Hct = 20%
Platelets = 355,000/ mm3
RBC = 3.0mil/cmm
WBC = 8750/cmm
Differential = 6 eos 20 segs 68 lymphs 6 monos
Which of the following is the MOST likely diagnosis?
A. Dietary iron deficiency
B. Idiopathic thrombocytopenia
C. Lymphocytic leukemia
D. Thalassemia minor
E. Lead poisoning - Answer>> A;
We can rule out answer Idiopathic thrombocytopenia since the
platelet count is normal. We can also exclude lymphocytic
leukemia because the WBC is normal. Thalassemia minor can be
excluded because thalassemia patients usually have only mild
anemia. Finally, lead poisoning cannot be the answer since this
condition does not usually cause severe anemia. The RBC, Hct,
and Hgb are all very low, and this fits the picture of iron
deficiency anemia.
The purpose of C3a, C4a, C5a, the split-products of the
complement cascade, is to:
The correct answer is highlighted below
https://www.stuvia.com/en-us/user/Lectdavian
