Welcome to your MLT- Professional Name: Email: Phone Number: [The LD pleural fluid:serum ratio for a transudative fluid is usually:] 3:1 or higher 2:1 1:1 1:2 or less 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 symptoms and disease is:] Dysentery—amebiasis Malabsorption syndrome—giardiasis Cardiac involvement—chronic Chagas disease Myalgias—trichuriasis None . [SITUATION: An immunology supervisor ordered several antinuclear antibody and influenza A kits. The outside packaging of both kits was marked to store at 2°C–8°C. The kits were shipped with dry ice, but were unpacked at 7:00 p.m. and left in the mailroom at room temperature until 7:00 a.m. the next morning. What should be done with the kits?] They can be placed into inventory They must be tested using quality controls before use and used only if QC performance is acceptable The kits should not be used for clinical testing The disposition of the kits depends on the manufacturer’s documentation for stability and the lab’s lot-to-lot analysis None . [How many milliliters of a 2,000.0 mg/dL glucose stock solution are needed to prepare 100.0 mL of a 150.0 mg/dL glucose working standard?] 1.5 mL 7.5 mL 15.0 mL 25.0 mL None . [Which of the following is the least hazardous area of an infant’s foot for capillary puncture?] Central area of the heel Lateral plantar heel surface Medial area of the arch Posterior curvature of the heel None . [Logging on to most computer systems requires the use of a/an:] accession number. bar code reader. modem. password. None . [Toxoplasma gondii is characterized by:] Possible congenital infection and ingestion of oocysts Cosmopolitan distribution and possible difficulties with interpretation of serological results Neither A nor B Both A and B None . [After arriving in the laboratory, all specimens are immediately:] centrifuged to stop glycolysis. logged in or accessioned. refrigerated until processed. uploaded to testing instruments. None . [A stated competency requirement for a medical laboratory science student is to perform calibration, plot data, and evaluate the acceptability of controls. This competency requirement encompasses which educational objective?] Cognitive Psychomotor Affective All of these options None . [Saliva specimens can be used to detect:] alcohol. drugs. hormones. all of the above. None . [Which of the following results falls within the diagnostic criteria for diabetes mellitus?] Fasting plasma glucose of 120 mg/dL Two-hour postprandial plasma glucose of 160 mg/dL Two-hour plasma glucose of 180 mg/dL following a 75 g oral glucose challenge Random plasma glucose of 250 mg/dL and presence of symptoms None . [A decreased osmotic fragility test would be associated with which of the following conditions?] Sickle cell anemia Hereditary spherocytosis Hemolytic disease of the newborn Acquired hemolytic anemia None . [A 49-year-old man who traveled to Mexico City returned with a bad case of dysentery. His symptoms were fever; abdominal cramping; and bloody, mucoidal, frequent stools. In addition to this, many WBCs were seen on the Gram stain smear. Stool culture gave the following results: Gram stain: Gram-negative rods Lactose = + Indole = + Lysine decarboxylase = Neg Urease = Neg Motility = Neg What is the most likely organism?] Salmonella spp. Proteus mirabilis Escherichia coli Enteroinvasive E. coli (EIEC) None . [A 45-year-old hunter developed fever, myalgia, and periorbital edema. He has a history of bear meat consumption. The most likely causative agent is:] Toxoplasma gondii Taenia solium Hymenolepis nana Trichinella spiralis None . [SITUATION: A urine specimen has a specific gravity of 1.025 and is strongly positive for nitrite. All other dry reagent strip test results are normal, and the microscopic exam was unremarkable, showing no WBCs or bacteria. The urine sample was submitted as part of a preemployment physical exam that also includes drug testing. Which most likely caused these results?] A viral infection of the kidney A urinary tract infection in an immunosuppressed person An adulterated urine specimen Error in reading the nitrite pad caused by poor reflectometer calibration None . [Which of the following is the primary mechanism for vasopressin (ADH) release?] Hypovolemia Hyperosmolar plasma Renin release Reduced renal blood flow None . [Which is most likely a positive Western blot result for infection with HIV?] Band at p24 Band at gp60 Bands at p24 and p31 Bands at p24 and gp120 None . [Which of the following plots is best for comparison of precision and accuracy amonglaboratories?] Levy–Jennings Tonks–Youden Cusum Linear regression None Comment . [An autologous unit of whole blood was collected on a 33-year-old woman in preparation for a knee replacement procedure in 3 weeks. The whole blood unit had her hyphenated last name, first name, and last four digits of her social security number for identification. The lab computer system, however, only had her married name and first name, medical record number, and social security number. What should be done with this blood product?] Discard the unit Make the unit available for transfusion Confirm the name with donor and have admissions make the correction in the computer system, then make the unit available for transfusion Ensure that social security numbers match, confirm the name with donor and have admissions make the correction in the computer system with the medical director’s approval, then make the unit available for transfusion None . [A single-point calibration is performed between each blood gas sample in order to:] Correct the electrode slope Correct electrode and instrument drift Compensate for temperature variance Prevent contamination by the previous sample None . [Which of the following may be associated with thrombotic events?] Decreased protein C Increased fibrinolysis Afibrinogenemia ITP None . [When should blood samples for trough drug levels be collected?] 30 minutes after peak levels 45 minutes before the next dose 1–2 hours after the last dose Immediately before the next dose is given None . [A negative glucose oxidase test and a positive test for reducing sugars in urine indicates:] True glycosuria A false-negative glucose oxidase reaction The presence of a nonglucose reducing sugar such as galactose A trace quantity of glucose None . [What is the most likely explanation when a patient has clinical signs of viral hepatitis but tests negative for hepatitis A IgM, hepatitis B surface antigen, and hepatitis C Ab?] Tests were performed improperly The patient does not have hepatitis The patient may be in the “core window” Clinical evaluation was performed improperly None . [The Shiga-like toxin (verotoxin) is produced mainly by which Enterobacteriaceae?] Klebsiella pneumoniae E. coli Salmonella typhimurium Enterobacter cloacae None . [Thrombocytopenia may be associated with:] Postsplenectomy Hypersplenism Acute blood loss Increased proliferation of pluripotential stem cells None . [The tourniquet should be released:] as soon as blood fl ow is established. before needle removal from the arm. within 1 minute of its application. all of the above. None . [Which test would be abnormal in a patient with factor X deficiency?] PT only APTT only PT and APTT Thrombin time None . [Thrombotic thrombocytopenic purpura (TTP) is characterized by:] Prolonged PT Increased platelet aggregation Thrombocytosis Prolonged APTT None . Time's up
