5000 Plus MCQs for Lab Technician and Technologists are designed to test the knowledge and proficiency of laboratory professionals who work in the field of clinical laboratory science. These questions cover a wide range of topics related to laboratory science, including anatomy, physiology, microbiology, chemistry, and hematology.
601 to 650 MCQs for Lab Technician and Technologist Exam Preparation
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Questions 601 to 650
A multilineage cytokine among the ILs is:
- a) IL-1
- b) IL-2
- c) IL-3
- d) IL-4
Which of the following cells may develop in sites other than the bone marrow?
- a) Monocyte
- b) Lymphocyte
- c) Megakaryocyte
- d) Neutrophil
The acceptable range for hemoglobin values on a control sample is 13 ± 0.4 g/dL. A hemoglobin determination is performed five times in succession on the same control sample. The results are 12, 12.3, 12, 12.2, and 12.1 g/dL. These results are:
- a) Precise, but not accurate
- b) Both accurate and precise
- c) Accurate, but not precise
- d) Neither accurate nor precise
The layer of the erythrocyte membrane that is largely responsible for the shape, structure, and deformability of the cell is the:
- a) Integral protein
- b) Exterior lipid
- c) Peripheral protein
- d) Interior lipid
During midfetal life, the primary source of blood cells is the:
- a) Bone marrow
- b) Spleen
- c) Lymph Nodes
- d) Liver
In the bone marrow, RBC precursors are located:
- a) In the center of the hematopoietic cords
- b) Adjacent to megakaryocytes along the adventitial cell lining
- c) Surrounding fat cells in apoptotic islands
- d) Surrounding macrophages near the sinus membrane
Which of the following gathers, organizes, and directs light through the specimen?
- a) Ocular
- b) Objective lens
- c) Condenser
- d) Optical Tube
How are the globin chains genes arranged? Note: α means alpha, β means beta
- a) With α genes and β genes on the same chromosome including two α genes and two β genes
- b) With α genes and β genes on separate chromosomes, two α genes on one chromosome and one β gene on a different chromosome
- c) With α genes and β genes on the same chromosome including four α genes and four β genes
- d) With α genes and β genes on separate chromosomes, four α genes on one chromosome and two β genes on a different chromosome
The maximum number of erythrocytes generated by one Multipotential Stem Cell is:
- a) 8
- b) 1
- c) 12
- d) 16
What is the distribution of normal Hb in adults?
- a) 80-90% Hb A, 5-10% Hb A2, 1-5% Hb F
- b) 85% Hb A, 10% Hb A2, 5% Hb F
- c) 90% Hb A, 5% Hb A2, 5% Hb F
- d) 95% Hb A, <3.5% Hb A2, <1–2% Hb F
The most frequent cause of needle punctures is:
- a) Patient movement during venipuncture
- b) Improper disposal of phlebotomy equipment
- c) Inattention during removal of needle after venipuncture
- d) Failure to attach needle firmly to tube holder
Iron is incorporated into the heme molecule in which of the following forms:
- a) Ferro
- b) Ferrous
- c) Ferric
- d) Apoferritin
The most important practice in preventing the spread of disease is:
- a) Wearing masks during patient contact
- b) Proper handwashing
- c) Wearing disposable lab coats
- d) Identifying specimens from known or suspected HIV and HBV patients with a red label
Which of the following would correlate with an elevated ESR value?
- a) Osteoarthritis
- b) Polycythemia
- c) Decreased globulins
- d) Inflammation
The enzyme deficiency in the Embden-Meyerhof pathway that is responsible for most cases of nonspherocytic hemolytic anemia is:
- a) Hexokinase
- b) Phosphotriptokinase
- c) Pyruvate Kinase
- d) Glyceraldehyde 3-Phosphate
The most common type of protein found in the cell membrane is:
- a) Lipoprotein
- b) Mucoprotein
- c) Glycoprotein
- d) Nucleoprotein
Neutrophil Count is high in:
- a) Acute bacterial infection
- b) Iron Deficiency Anemia
- c) Megaloblastic Anemia
HbA2 is consisting of:
- a) 3 α chains and 2 γ chains
- b) 2 α and 2 β chains
- c) 2 α and 2 δ chains
- d) 3 α and 2 δ chains
The Main (most) Hb found in Adult is:
- a) Hb A
- b) Hb A2
- c) Hb F
Detection of Malarial parasite is by:
- a) Thick Blood Film
- b) Thin Blood Film
Leukocyte that involves in adaptive immunity and chest pain:
- a) Lymphocyte
- b) Monocyte
- c) Neutrophil
- d) Basophil
Reticulocyte is immature:
- a) RBC
- b) WBC
- c) Platelet Count
Leukocyte responsible for cellular immunity:
- a) B-Lymphocyte
- b) Basophil
- c) Monocyte
- d) T-Lymphocyte
Malarial infection transmitted by:
- a) Male anopheles mosquito
- b) Female anopheles mosquito
One stage prothrombin time is used to detect disorders in:
- a) Extrinsic coagulation pathway (Factors)
- b) Intrinsic coagulation pathway (Factors)
Thrombin time is:
- a) Extrinsic coagulation pathway (Factors)
- b) Intrinsic coagulation pathway (Factors)
- c) The conversion of prothrombin to fibrinogen in addition of thrombin
The severe malarial infection is caused by:
- a) Plasmodium Falciparum
- b) Plasmodium Malariae
- c) Plasmodium Oval
- d) Plasmodium Vivax
Leukocyte responsible for response to parasitic and all allergic infections:
- a) Neutrophils
- b) Lymphocytes
- c) Monocytes
- d) Eosinophils
- e) Basophils
With Romanowsky stain, 2-3 lobes and violet or pinkish granules are seen in:
- a) Neutrophils
- b) Eosinophils
- c) Basophils
Lymphocytes is elevated in:
- a) Acute bacterial Infection
- b) Iron Deficiency Anemia
- c) Megaloblastic Anemia
- d) None of “a”, “b” & “c” options
Thrombin Time measures:
- a) Convert fibrinogen to fibrin with activation of thrombin
- b) Prothrombin Time
- c) FDP’s Level
In presence of clotting defect, which of these is NOT measured:
- a) Leukocyte
- b) Monocyte
- c) Basophils
- d) Target Cells
Which of the white blood cells gives immunoglobulin:
- a) Neutrophils
- b) Lymphocytes
- c) Monocytes
- d) Eosinophils
- e) Basophils
Which of the following is a natural anticoagulant:
- a) EDTA
- b) Double Oxalate
- c) ACD
- d) Heparin
Ideal time for collecting blood sample for detection of filarial worm:
- a) 2 pm – 4 pm
- b) 10 pm – 2 am
- c) 6 am – 8 am
- d) 10 am – 2 pm
What is ‘Sex Ratio’?
- a) Number of females per thousand males
- b) Number of females per hundred males
- c) Difference between birth rate and death rate
- d) Study of population growth
Aorta arises from:
- a) Right atrium
- b) Left atrium
- c) Right ventricle
- d) Left ventricle
The protein portion of the enzyme is:
- a) Apoenzyme
- b) Prosthetic group
- c) Co-factor
- d) Coenzyme
Which of the following cells is NOT a WBC?
- a) Neutrophil
- b) Basophil
- c) Monocyte
- d) Thrombocyte
The colouring agent used in antisera AB is:
- a) Methylene blue
- b) Acriflavin
- c) Eosin
- d) Safranin
Name the anticoagulant present in purple coloured vacutainer tube:
- a) Heparin
- b) EDTA
- c) Sodium citrate
- d) None of “a”, “b” & “c” options
Blood collected in CPD-A can be stored in blood bank refrigerator for ____ days:
- a) 35
- b) 28
- c) 21
- d) 25
HDN due to Rh incompatibility can be prevented by giving anti-D antibody to Rh negative mother within ___ hours of delivery of Rh positive infant:
- a) 48 hrs
- b) 72 hrs
- c) 24 hrs
- d) 36 hrs
Which of the following is not an RBC diluting fluid?
- a) Normal saline
- b) Dacies fluid
- c) Turkes fluid
- d) Toissons fluid
During donor screening, persons having history of malaria should be avoided for a period of ___ years:
- a) 1 week
- b) 2 years
- c) 1 year
- d) 3 years
Depth of improved Neubauer counting chamber is:
- a) 0.1 mm
- b) 0.01 mm
- c) 0.001 mm
- d) 1 mm
Name the enzyme estimation done in semen sample to analyse the secretory function of prostate:
- a) Alanine transaminase
- b) Aspartate transaminase
- c) Acid phosphatase
- d) Alkaline phosphatase
The only cell in normal CSF is:
- a) Neutrophil
- b) Lymphocyte
- c) Monocyte
- d) None of “a”, “b” & “c” options
Name the test used to detect bile salt in urine:
- a) Benzidine test
- b) Fouchet’s test
- c) Ehrlich’s test
- d) Hays test
Ketone bodies in urine are:
- a) Acetone
- b) Beta hydroxy butyric acid
- c) Both “a” and “b” Options
- d) None of “a” and “b” Options
Answer Key Summary
The questions are typically designed to assess the technical skills and knowledge required for the laboratory profession, including the ability to analyze laboratory test results, perform laboratory procedures, and maintain laboratory equipment.
To prepare for these MCQs, candidates should have a thorough understanding of the key concepts and principles of laboratory science. They should also be familiar with common laboratory equipment and procedures, as well as laboratory safety protocols.
Candidates may also benefit from studying specific laboratory science textbooks or taking online courses that cover the material tested in the MCQs. Additionally, practicing sample MCQs and reviewing the answers can help candidates identify areas where they may need to improve their knowledge or skills.
Overall, the MCQs for lab technologists are designed to be challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in the field of laboratory science.
Q. 635 right ans is 10pm to 2am. Q. 640 no ans is right in given option
Thanks for Comment
Q # 635 has been corrected
Q # 640 is correct “Eosin”
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These MCQs are a great resource for MOH UAE preparation. Study consistently and practice regularly to improve your chances of success. But Success depends on your overall preparation and exam performance.