Welcome to your MLT- Professional Name: Email: Phone Number: [Which organism is the most frequent cause of bacterial meningitis in neonates?] Neisseria meningitidis Group B Streptococcus Streptococcus pneumoniae Klebsiella pneumoniae None . [Which of the following cardiac markers derived from neutrophils predicts an increased risk for myocardial infarction?] Phospholipase A2 (PLA2) Glycogen phosphorylase BB (GPBB) Soluble CD40 ligand (sCD40l) Myeloperoxidase (MPO) None . [Review the following CBC results on a 70-year-old man:WBCs = 58.2 × 10^9/L MCV = 98 fLRBCs = 2.68 × 10^12/L MCH = 31.7 pgHgb = 8.5 g/dL MCHC = 32.6%Hct = 26.5 mL/dL% PLT = 132 × 10^9/LDifferential: 96 lymphocytes; 2 band neutrophils; 2 segmented neutrophils; 25 smudge cells/100 WBCsWhat is the most likely diagnosis based on these values?] Acute lymphocytic leukemia Chronic lymphocytic leukemia (CLL) Infectious mononucleosis Myelodysplastic syndrome None Comment . [Which of the following examples of potential exposure to blood-borne pathogens involve a parenteral route of transmission?] Chewing gum while collecting blood specimens Eating a snack while accessing specimens Licking fi ngers while turning lab manual pages Rubbing the eyes while processing specimens None . [Which test would best distinguish between SLE and MCTD?] Multiplex or ELISA test for anti-SM and anti-RNP Immunofluorescence testing using Crithidia as substrate Slide agglutination testing Laboratory tests cannot distinguish between these disorders None . [Which additive prevents glycolysis?] EDTA Heparin Potassium oxalate Sodium fluoride None . [Which of the following tests should be performed for initial differentiation of Listeria monocytogenes from group B streptococci?] Gram stain, motility at room temperature, catalase Gram stain, CAMP test, H2S/TSI Oxidase, CAMP test, glucose Oxidase, bacitracin None . [A 77-year-old female is admitted to a community hospital after a cardiac arrest. History includes an abdominal aortic aneurysm 2 years ago in which she received 6 units of packed cells. Her blood type is A positive and antibody screen is positive at AHG phase in screening cells II and III. A panel is performed using LISS. Referring to panel 3, which antibodies are likely implicated?(panel 3)] C and K Jk^a and c E and c Fy^a and M None Comment . [In which liver disease is the DeRitis ratio (ALT:AST) usually greater than 1.0?] Acute hepatitis Chronic hepatitis Hepatic cirrhosis Hepatic carcinoma None . [According to CLIA ’88, satisfactory performance for ABO, Rh, and compatibility tests requires a score of:] 100% 90% 80% 75% None . [Which of the following findings is consistent with a subarachnoid hemorrhage rather than a traumatic tap?] Clearing of the fluid as it is aspirated A clear supernatant after centrifugation Xanthochromia Presence of a clot in the sample None . [When taking a blood pressure, the systolic pressure is the pressure reading when the:] artery is compressed and blood flow is cut off. cuff has already been completely deflated. first heart sounds are heard as the cuff is deflated. muffled sound is heard as the cuff is deflated. None . [A technologist performs an antibody study and finds 1+ and weak positive reactions for several of the panel cells. The reactions do not fit a pattern. Several selected panels and a patient phenotype do not reveal any additional information. The serum is diluted and retested, but the same reactions persist. What type of antibody may be causing these results?] Antibody to a high-frequency antigen Antibody to a low-frequency antigen High titer low avidity (HTLA) Anti-HLA None . [Plate 13 is a fecal specimen seen under 400× using brightfield microscopy. The plate shows the ovum of which parasite?] Necator americanus Trichuris trichiura Ascaris lumbricoides Enterobius vermicularis None Comment . [A 61-year-old male with a history of multiple myeloma had a stem cell transplant 3 years ago. The donor was O positive and the recipient was B positive. He is admitted to a community hospital for fatigue and nausea. Typing results reveal the following: Anti-A = 0 Anti-B =0 Anti-A,B = 0 Anti-D = 4+ A1 cells = 4+ B cells = 0 How would you report this type?] O positive B positive A positive Undetermined None . [Which statement accurately describes the clinical utility of translocation testing in leukemia?] Relapse is predicted by any new translocation occurring after treatment Specific translocations associated with a type of leukemia will occur in all cases Translocation products for each leukemia subtype are always the same Translocation is a sensitive way to identify surviving leukemic cells following treatment None . [A blood-tainted pleural fluid is submitted for culture. Which test result would be most conclusive in classifying the fluid as an exudate? Test Result] LD fluid/serum 0.65 Total protein 3.2 g/dL RBC count 10,000/μL WBC count 1500/μL None . [What has happened in a titer, if tube Nos. 5–7 show a stronger reaction than tube Nos.1–4?] Prozone reaction Postzone reaction Equivalence reaction Poor technique None . [Commonly measured ABG parameters include:] pH. PaCO2. O2 saturation. All of the above. None . [A patient with hemolytic-uremic syndrome associated with septicemia has a haptoglobin level that is normal, although the plasma free hemoglobin is elevated and hemoglobinuria is present. Which test would be more appropriate than haptoglobin to measure this patient’s hemolytic episode?] Hemopexin Alpha-1 antitrypsin C-reactive protein Transferrin None . [Which test would be abnormal in a patient with factor X deficiency?] PT only APTT only PT and APTT Thrombin time None . [________________ are set up to monitor all aspects of laboratory work.] Quality indicators Quality System Essentials Sentinel events Threshold values None . [A laboratory information system (LIS) uses an algorithm based on the delta check process to identify erroneous results. This process is a part of which LIS function?] Quality control management Real-time instrument interfacing Autoverification of test results Electronic crossmatching None . [You are about to perform routine venipuncture on a patient with no known allergy to antiseptics. Which of the following substances would you use to clean the site?] 5.25% sodium hypochlorite 70% isopropyl alcohol Antibacterial soap and water Povidone–iodine None . [Neutrophil phagocytosis and particle ingestion are associated with an increase in oxygen utilization referred to as respiratory burst. What are the two most important products of this biochemical reaction?] Hydrogen peroxide and superoxide anion Lactoferrin and NADPH oxidase Cytochrome b and collagenase Alkaline phosphatase and ascorbic acid None . [A suspected case of plague requires which of the following procedures in order to confirm Yersinia pestis?] Collection of multiple sets of blood cultures Incubation of blood cultures at both 28°C and 35°C Culture aspirates from bubos to MacConkey agar at room temperature All of these options None . [All tubes (dilutions) except the negative control are positive for cold agglutinins. This indicates:] Contaminated red cells A rare antibody against red cell antigens The sample was stored at 4°C prior to separating serum and cells Further serial dilution is necessary None . [Plate 59 is a 1,000× field of a FISH test for BCR/ABL using a dual fusion probe, consistingof a Spectrum Green–labeled probe to the BCR 22 q11.2 locus, and a Spectrum Orange–labeled probe to ABL 9q34 and counterstained with DAPI. The cells are in interphase. The cells in this field are best described as:] BCR/ABL positive BCR/ABL negative BCR/ABL positive with an atypical pattern Inconclusive None Comment . [Sexual harassment is a form of discrimination and therefore is prohibited by the:] Occupational Safety and Health Administration (OSHA) Civil Rights Act of 1964 (Title VII) Right to Privacy Act of 1974 Department of Health and Human Services None . [What constitutes a diagnosis of viral hepatitis?] Abnormal test results for liver enzymes Clinical signs and symptoms Positive results for hepatitis markers All of these options None . Time's up
