Welcome to your MLT- Professional Name: Email: Phone Number: [What staining method is used most frequently to stain and manually count reticulocytes?] Immunofluorescence Supravital staining Romanowsky staining Cytochemical staining None . [Whewellite and weddellite kidney stones are composed of:] Magnesium ammonium phosphate Calcium oxalate Calcium phosphate Calcium carbonate None . [Logging on to most computer systems requires the use of a/an:] accession number. bar code reader. modem. password. None . [The spinal cord and brain are covered by protective membranes called:] meninges. neurons. papillae. viscera. None . [Which increase in antibody titer (dilution) best indicates an acute infection?] From 1:2 to 1:8 From 1:4 to 1:16 From 1:16 to 1:256 From 1:64 to 1:128 None . [One of two controls within a run is above +2s and the other control is below –2s from the mean. What do these results indicate?] Poor precision has led to random error (RE) A systematic error (SE) is present Proportional error is present QC material is contaminated None . [A falsely elevated Hct is obtained. Which of the following calculated values will not be affected?] MCV MCH MCHC Red cell distribution width (RDW) None . [In addition to measuring blood glucose, Hgb A1c, and microalbumin, which test should be done on diabetic persons once per year?] Urine glucose Urine ketones Plasma fructosamines Estimated glomerular filtration rate None . [The incorrect match between method and method objective is:] Direct wet examination—detection of organism motility Knott’s concentration—the recovery of operculated helminth eggs Baermann’s concentration—the recovery of Strongyloides Permanent stained fecal smear—confirmation of protozoa None . [The WHO classification requires what percentage for the blast count in the blood or bone marrow for the diagnosis of AML?] At least 30% At least 20% At least 10% Any percentage None . [Which whole-blood level is suggestive of excessive exposure to lead in children but not adults?] 4 μ g/dL 14 μ g/dL 28 μ g/dL 32 μ g/dL None . [A nonfermenter recovered from an eye wound is oxidase positive, motile with polar monotrichous flagella, and grows at 42°C. Colonies are dry, wrinkled or smooth, buff to light brown in color, and are difficult to remove from the agar. In which DNA homology group should this organism be placed?] Pseudomonas stutzeri Pseudomonas fluorescens Pseudomonas alcaligenes Pseudomonas diminuta None . [The urease test is needed to differentiate Mycobacterium scrofulaceum from which of the following mycobacteria?] M. gordonae M. kansasii M. avium–intracellulare complex M. bovis None . [Spherocytes differ from normal red cells in all of the following except:] Decreased surface to volume No central pallor Decreased resistance to hypotonic saline Increased deformability None . [Which of the following statements regarding pregnancy testing is true?] β Subunits of human chorionic gonadotropin (hCG), thyroid-stimulating hormone (TSH), and follicle-stimulating hormone (FSH) are very similar Antibodies against the β subunit of hCG cross-react with luteinizing hormone (LH) A false-positive result may occur in patients with heterophile antibodies Serum should not be used for pregnancy tests because proteins interfere None . [An elderly woman who cared for several domestic cats was hospitalized with suspected cat-scratch disease (CSD). Blood cultures appeared negative, but a small, slightly curved pleomorphic gram-negative bacillus grew on BHI agar (brain, heart infusion agar with 5% horse or rabbit blood). What is the most likely identification?] Bartonella spp. Brucella spp. Kingella spp. Haemophilus spp. None . [Creatinine is formed from the:] Oxidation of creatine Oxidation of protein Deamination of dibasic amino acids Metabolism of purines 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 . [The most common deficiency cited during an onsite laboratory inspection by the College of American Pathologists (CAP) and the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) is:] Improper documentation Insufficient work space area Improper reagent storage Improper instrument calibration frequency None . [Which of the following is the most common cause of Cushing’s syndrome?] Pituitary adenoma Adrenal hyperplasia Overuse of corticosteroids Ectopic adrenocorticotropic hormone (ACTH) production by tumors None . [Which of the following products is responsible for satellite growth of Haemophilus spp. around colonies of Staphylococcus and Neisseria spp. on sheep blood agar?] NAD Hemin Indole Oxidase None . [The SG of the filtrate in Bowman’s space is approximately:] 1.000–1.002 1.004–1.006 1.008–1.010 1.012–1.014 None . [Select the main estrogen produced by the ovaries and used to evaluate ovarian function.] Estriol (E3 ) Estradiol (E2 ) Epiestriol Hydroxyestrone None . [What is the American Diabetes Association recommended cutoff value for adequate control of blood glucose in diabetics as measured by glycated hemoglobin?] 5% 6.5% 9.5% 11% None . [A patient receives a transfusion of packed red cells and fresh frozen plasma and develops an anaphylactic, nonhemolytic reaction. She reports receiving a transfusion 20 years earlier. She had no reaction to the previous transfusion, but she did feel “poorly” a few weeks later. Which of the following transfused substances most likely elicited the reaction?] IgA Group A antigen Rho (D) antigen An antigen belonging to the Duffy system None . [In which of the following conditions is PSA least likely to be increased?] Precancerous lesions of the prostate Postprostate biopsy Benign prostatic hypertrophy Post–digital rectal examination None . [Which statement best describes the clinical utility of B-type natriuretic peptide (BNP)?] Abnormal levels may be caused by obstructive lung disease A positive test indicates prior myocardial damage caused by AMI that occurred within the last 3 months A normal test result (<100 pg/mL) helps rule out congestive heart failure in persons with symptoms associated with coronary insufficiency A level above 100 pg/mL is not significant if evidence of congestive heart failure is absent None . [SITUATION: A patient tested positive for HIV-1 infection using a reverse transcriptase-polymerase chain reaction (RT-PCR) method. However, 1 week later a second blood sample was collected and sent to a reference lab that performed a confirmatory test by Western blot. The Western blot test was negative. What best explains these results?] The samples for RT-PCR and Western blot were not from the same patient RT-PCR is more sensitive for early detection The RT-PCR result was falsely positive The RT-PCR test detected HIV-2 and the Western blot is specific for HIV-1 None . [A pregnant woman came to her physician with a maculopapular rash on her face and neck. Her temperature was 37.7°C (100°F). Rubella tests for both IgG and IgM antibody were positive. What positive test(s) would reveal a diagnosis of congenital rubella syndrome in her baby after birth?] Positive rubella tests for both IgG and IgM antibody Positive rubella test for IgM Positive rubella test for IgG No positive test is revealed in congenital rubella syndrome None . [In hepatitis, the rise in serum conjugated bilirubin can be caused by:] Secondary renal insufficiency Failure of the enterohepatic circulation Enzymatic conversion of urobilinogen to bilirubin Extrahepatic conjugation None . Time's up
