Welcome to your MLT- Professional Name: Email: Phone Number: [What may be found in the serum of a person who is exhibiting signs of TRALI (transfusion-related acute lung injury)?] Red blood cell alloantibody IgA antibody Antileukocyte antibody Allergen None . [In which condition is the highest level of serum gastrin usually seen?] Atrophic gastritis Pernicious anemia Z–E syndrome Cancer of the stomach None . [Staphylococcus saprophyticus is best differentiated from Staphylococcus epidermidis by resistance to:] 5 μg of lysostaphin 5 μg of novobiocin 10 units of penicillin 0.04 unit of bacitracin None . [Which inclusions may be seen in leukocytes?] Dohle bodies Basophilic stippling Malarial parasites Howell–Jolly bodies None . [The CLIA federal regulations are administered by:] CAP. CLSI. CMS. COW. None . [Which formula is most accurate in predicting plasma osmolality?] Na + 2(Cl) + BUN + glucose 2(Na) + 2(Cl) + glucose + urea 2(Na) + (glucose ÷ 18) + (BUN ÷ 2.8) Na + Cl + K + HCO3 None . [Which of the following results is most likely discrepant? Anti-A, neg Anti-B, 4+ A1 cells, neg B cells, neg] Negative B cells Positive reaction with anti-B Negative A1 cells No problem with this typing None . [What is the crossmatching protocol for platelets and/or plasma?] Perform a reverse grouping on donor plasma No testing is required Perform a reverse grouping on recipient plasma Platelets must be HLA compatible None . [In the ultraviolet enzymatic method for BUN, the urease reaction is coupled to a second enzymatic reaction using:] AST Glutamate dehydrogenase Glutamine synthetase Alanine aminotransferase (ALT) None . [Which of the following disorders is associated with lactate acidosis?] Diarrhea Renal tubular acidosis Hypoaldosteronism Alcoholism None . [Which of the following is a common finding in aplastic anemia?] A monoclonal disorder Tumor infiltration Peripheral blood pancytopenia Defective DNA synthesis None . [Which of the following conditions is associated with an increase in ionized calcium (Cai) in the blood?] Alkalosis Hypoparathyroidism Hyperalbuminemia Malignancy None . [A 25-year-old woman saw her physician with symptoms of jaundice, acute cholecystitis, and an enlarged spleen. On investigation, numerous gallstones were discovered. Review the following CBC results:WBCs = 11.1 × 10^9/L MCV = 100 fLRBCs = 3.33 × 10^12/L MCH = 34.5 pgHgb = 11.5 g/dL MCHC = 37.5%Hct = 31.6 mL/dL PLT = 448 × 10^9/LWBC differential: 13 band neutrophils; 65 segmented neutrophils; 15 lymphocytes; 6 monocytes; 1 eosinophil RBC morphology: 3+ spherocytes, 1+ polychromasiaWhat follow-up laboratory test would provide valuable information for this patient?] Osmotic fragility Hgb electrophoresis G6PD assay Methemoglobin reduction test None Comment . [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 . [Saliva specimens can be used to detect:] alcohol. drugs. hormones. all of the above. None . [Which formula correctly describes the relationship between absorbance and %T ?] A = 2 – log %T A = log 1/T A = –log T All of these options None . [What antibodies could an R1R1 make if exposed to R2R2 blood?] Anti-e and anti-C Anti-E and anti-c Anti-E and anti-C Anti-e and anti-c None . [The term internal autoinfection can be associated with the following parasites:] Cryptosporidium spp. and Giardia lamblia Cystoisospora belli and Strongyloides stercoralis Cryptosporidium spp. and Strongyloides stercoralis Giardia lamblia and Cystoisospora belli None . [After installing a new analyzer and reviewing the results of patients for 1 month, the lead technologist notices a greater frequency of patients with abnormally high triglyceride results. Analysis of all chemistry profiles run the next day indicated that triglyceride results are abnormal whenever the test is run immediately after any sample that is measured for lipase. These observations point to which type of error?] Specificity of the triglyceride reagents Precision in pipetting of lipemic samples Bias caused by sequence of analysis Reagent carryover None . [The thick muscle layer of the heart is called the:] endocardium. epicardium. myocardium. pericardium. None . [Which of the following is the mechanism causing Cushing’s disease?] Excess secretion of pituitary ACTH Adrenal adenoma Treatment with corticosteroids Ectopic ACTH production by tumors None . [A gram-negative coccobacillus was recovered on chocolate agar from the CSF of an immunosuppressed patient. The organism was nonmotile and positive for indophenol oxidase but failed to grow on MacConkey agar. The organism was highly susceptible to penicillin. The most probable identification is:] Acinetobacter spp. Pseudomonas aeruginosa Pseudomonas stutzeri Moraxella lacunata None . [In situ hybridization (ISH) tests for human papilloma virus (HPV) using cervical smears differ from immunochemical staining of tissue in which regard?] ISH has lower analytical sensitivity ISH has lower analytical specificity ISH differentiates subtypes more easily ISH differentiates cervical neoplasia from genital warts None . [The most frequently occurring lab-acquired infection is:] hepatits B. HIV infection. syphilis. tuberculosis. None . [What is the pH of a 0.05 M solution of acetic acid? Ka = 1.75 × 10^–5, pKa = 4.76] 1.7 3.0 4.3 4.6 None Comment . [What type of specimen is needed for a guaiac test?] Blood Breath Feces Urine None . [Which situation is not a cause for indefinite deferral of a donor?] Male currently on dutasteride (Avodart) Donation of a unit of blood that transmitted hepatitis B virus to a recipient History of Creutzfeldt–Jacob disease Accidental needle stick 1 year ago; negative for infectious disease None . [The abbreviation for the routine hematology test that includes hemoglobin, hematocrit, red blood count, and white blood count determinations is:] CBC. CDC. CPK. CRP. None . [In a patient with human immunodeficiency virus (HIV) infection, one should expect to see:] Shift to the left in WBCs Target cells Reactive lymphocytes Pelgeroid cells None . [In real-time PCR, quantitation can be done without standards of known copy number. Relative quantitation (estimated concentration) is possible because:] Each cycle generates a twofold increase in product Each cycle threshold represents a 10-fold increase in product The fluorescence of two samples can be compared directly Concentration is proportional to fluorescence at the endpoint of the PCR reaction None . Time's up
