MLT ASCP test bank Questions correctly answered 2023

MLT ASCP test bank Questions correctly answered 2023Standard precautions apply to all of the following except: a. Blood b. Cerebrospinal fluid c. Semen d. Concentrated acids d. Concentrated acids The most important practice in preventing the spread of disease is: a. Wearing masks during patient contact b. Proper hand washing c. Wearing disposable laboratory coats d. Identifying specimens from known or suspected HIV- and HBV-infected patients with a red label b. Proper hand washing The appropriate dilution of bleach to use in laboratory disinfection is: a. 1:2 b. 1:5 c. 1:10 d. 1:100 d. 1:10 How frequently should fire alarms and sprinkler systems be tested? a. Weekly b. Monthly c. Quarterly d. Annually c. Quarterly Where should alcohol and other flammable chemicals be stored? a. In an approved safety can or storage cabinet away from heat sources b. Under a hood and arranged alphabetically for ease of identification in an emergency c. In a refrigerator at 2 C to 8 C to reduce volatilization d. On a low shelf in an area protected from light a. In an approved safety can or storage cabinet away from heat sources 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 syringe or tube holder b. Improper disposal of phlebotomy equipment What class fire extinguisher would be appropriate to use on a fire in a chemical cabinet? a. Class A b. Class B c. Class C d. Class D b. Class B Select the needle most commonly used in standard venipuncture in an adult: a. One inch, 18 gauge b. One inch, 21 gauge c. One-half inch, 23 gauge d. One-half inch, 25 gauge b. One inch, 21 gauge The process of formation and development of blood cells is termed: a. Hematopoiesis b. Hematemesis c. Hematocytometry d. Hematorrhea a. Hematopoiesis During the second trimester of fetal development, the primary site of blood cell production is: a. Bone marrow b. Spleen c. Lymph nodes d. Liver d. Liver Which of the following organs is responsible for the maturation of T lymphocytes and regulation of their expression of CD4 and CD8? a. Spleen b. Liver c. Thymus d. Bone marrow c. Thymus The best source of active bone marrow from a 20-year-old would be: a. Iliac crest b. Femur c. Distal radius d. Tibia a. Iliac crest Physiologic programmed cell death is termed: a. Angiogenesis b. Apoptosis c. Aneurysm d. Apohematics b. Apoptosis Which organ is the site of sequestration of platelets? a. Liver b. Thymus c. Spleen d. Bone marrow c. Spleen Which one of the following cells is a product of the CLP? a. Megakaryocyte b. T lymphocyte c. Erythrocyte d. Granulocyte b. T lymphocyte What growth factor is produced in the kidneys and is used to treat anemia associated with kidney disease? a. EPO b. TPO c. G-CSF d. KIT ligand a. EPO Which one of the following cytokines is required very early in the differentiation of a hematopoietic stem cell? a. IL-2 b. IL-8 c. EPO d. FLT3 ligand d. FLT3 ligand Hematopoietic stem cells produce all lineages of blood cells in sufficient quantities over the lifetime of an individual because they: a. Are unipotent b. Have the ability of self-renewal by asymmetric division c. Are present in large numbers in the bone marrow niches d. Have a low mitotic potential in response to growth factors b. Have the ability of self-renewal by asymmetric division