Welcome to your MLT- Professional Name: Email: Phone Number: [What process is most often used in LC-MS to introduce the sample into the mass filter?] Electrospray ionization Chemical ionization Electron impact ionization Fast atom bombardment None . [Plate 51 shows a urinary sediment under 400× magnification stained with Sternheimer–Malbin stain. What is the large object to the right of the center of this field?] Squamous epithelial cell Artifact Renal epithelial cell Transitional epithelial cell None Comment . [A transplant patient is currently receiving steroids. The patient is now complaining of abdominal pain and has symptoms of pneumonia and positive blood cultures with gram-negative rods. The individual has been living in the United States for 20 years but grew up in Central America. The most likely parasite causing these symptoms is:] Trypanosoma brucei rhodesiense Giardia lamblia Strongyloides stercoralis Schistosoma japonicum None . [Toxic shock syndrome is attributed to infection with:] Staphylococcus epidermidis Staphylococcus hominis Staphylococcus aureus Staphylococcus saprophyticus None . [Which type of anemia is usually present in a patient with acute leukemia?] Microcytic, hyperchromic Microcytic, hypochromic Normocytic, normochromic Macrocytic, normochromic None . [The bile solubility test causes the lysis of:] Streptococcus bovis colonies on a blood agar plate Streptococcus pneumoniae colonies on a blood agar plate Group A streptococci in broth culture Group B streptococci in broth culture None . [Which of the following anticoagulant drugs can be used in patients with HIT?] Warfarin Heparin Aspirin Lepirudin None . [Commonly measured ABG parameters include:] pH. PaCO2. O2 saturation. All of the above. 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 . [A 6-month-old male infant was hospitalized with a respiratory infection. He was diagnosed with apnea and bronchiolitis. Further testing revealed congenital heart disease. Bacterial cultures were negative for Streptococcus pneumoniae and Haemophilus influenzae. What further testing should be done?] Respiratory syncytial virus (RSV) Rotavirus Norwalk virus HIV None . [An oxacillin-disk screen test is used to detect Streptococcus pneumonia resistance to penicillin. Using Mueller–Hinton agar with 5% sheep blood and a 1 μg oxacillin disk, what is the recommended inhibition zone size for penicillin susceptibility?] ≥5 mm ≥10 mm ≥15 mm ≥20 mm None . [Which statement is true regarding the volume distribution (Vd) of a drug?] Vd is equal to the peak blood concentration divided by the dose given Vd is the theoretical volume in liters into which the drug distributes The higher the Vd, the lower the dose needed to reach the desired blood level of drug The Vd is the principal determinant of the dosing interval None . [Using an electronic cell counter analyzer, an increased RDW should correlate with:] Spherocytosis Anisocytosis Leukocytosis Presence of NRBCs None . Hodgkin’s lymphoma Myeloproliferative disorder Leukemoid reaction Acute lymphocytic leukemia None Comment . [SITUATION: After a vacation to the Southwestern United States, a midwesterner complained of flulike symptoms with fever, chills, non-productive cough, and chest pain. Microscopic exam of sputum, cleared with KOH, revealed large, thick-walled spherules containing endospores. Upon culture, the mold phase showed septate hyphae and alternating barrel-shaped arthroconidia. Which organism is most likely the cause of this pneumonia?] Coccidioides immitis Histoplasma capsulatum Paracoccidioides brasiliensis Penicillium marneffei None . [Which of the following abnormal laboratory results is found in von Gierke’s disease?] Hyperglycemia Increased glucose response to epinephrine administration Metabolic alkalosis Hyperlipidemia None . [An 82-year-old male was admitted for renal failure. His type was B positive, and his antibody screen was negative. Two units of red cells were ordered. The first unit was transfused at 1:00 p.m. without incident. The second was started at 4:15 p.m. and stopped at 5:12 p.m., after the nurse observed the patient had expired. Vital signs were taken at 4:30 p.m. with no abnormalities. A transfusion reaction was called and the blood unit, tubing, and paperwork sent to the blood bank. There were no clinical manifestations noted on the paperwork and no post-transfusion specimen was sent to the blood bank. What type of reaction most likely occurred?] Symptoms not related to transfusion Acute hemolytic reaction Anaphylactic reaction Volume overload None . [A streptozyme test was performed, but the result was negative, even though the patient showed clinical signs of a streptococcal throat infection. What should be done next?] Either ASO or anti-deoxyribonuclease B (anti-DNase B) testing Another streptozyme test using diluted serum Antihyaluronidase testing Wait for 3–5 days and repeat the streptozyme test None . [Which of the following statements regarding ALP is true?] In normal adults, the primary tissue source is fast-twitch skeletal muscle Geriatric patients have a lower serum ALP than other adults Serum ALP levels are lower in children than in adults Pregnant women have a higher level of serum ALP than other adults None . [In renal tubular acidosis, the pH of urine is:] Consistently acid Consistently alkaline Neutral Variable, depending upon diet None . [Which of the following is associated with Tangier disease?] Apoprotein C-II deficiency Homozygous apo-B100 deficiency Apoprotein C-II activated lipase Apoprotein A-I deficiency None . [FFP can be transfused without regard for:] ABO type Rh type Antibody in product All of these options None . [SITUATION: A peripheral smear shows 75% blasts. These stain positive for both Sudan Black B (SBB) and peroxidase. Given these values, which of the following disorders is most likely?] Acute myelocytic leukemia (AML) Chronic myelogenous leukemia (CML) Acute undifferentiated leukemia (AUL) Acute lymphocytic leukemia (ALL) None . [A transplant patient began to show signs of rejection 8 days after receipt of the transplanted organ, and the organ was removed. What immune elements might be found in the rejected organ?] Antibody and complement Primarily antibody Macrophages T cells 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 . [Which of the following organisms are generally positive for β-galactosidase?] Salmonella spp. Shigella spp. Proteus spp. E. coli None . [Which genera are positive for phenylalanine deaminase?] Enterobacter, Escherichia, and Salmonella Morganella, Providencia, and Proteus Klebsiella and Enterobacter Proteus, Escherichia, and Shigella None . [An obstetric patient, 34 weeks pregnant, shows a positive antibody screen at the indirect antiglobulin phase of testing. She is group B, Rh negative. This is her first pregnancy. She has no prior history of transfusion. What is the most likely explanation for the positive antibody screen?] She has developed an antibody to fetal red cells She probably does not have antibodies because this is her first pregnancy, and she has not been transfused; check for technical error She received an antenatal dose of RhIg Impossible to determine without further testing None . [Plate 14 is a fecal specimen unstained seen under 400× using brightfield microscopy. The plate shows the ovum of which parasite?] N. americanus T. trichiura A. lumbricoides E. vermicularis None Comment . [Fletcher factor (prekallikrein) deficiency may be associated with:] Bleeding Thrombosis Thrombocytopenia Thrombocytosis None . Time's up
