ASCP STUDY GUIDE FOR MLT EXAM Questions and Answers 100% Correct| Latest Update 2024

Document Content and Description Below

1. DR antigens are found in which of the following systems? - ✔✔HLA system 2. Which one of the stains below is used to detect separated nucleic acids - ✔✔SyBr Green 3. Minimum inhibitory con... centration (MIC) susceptibility tests should be performed against other beta lactam antibiotics on important S. pneumoniae isolates from blood cultures and other sterile body fluids when a MIC for penicillin is performed? - ✔✔False 4. If you notice something in your laboratory that is a potentially hazardous situation, but is out of your control to fix, what should you do? - ✔✔Tell your supervisor or laboratory administrator 5. Which of the following best describes a hemoglobinopathy? - ✔✔A substitution of an amino acid in the hemoglobin chain. 6. Lymphocyte pleocytosis refers to a decreased number of lymphocytes in a CSF when compared to a normal sample? - ✔✔False 7. The susceptibility of a bacterium to each drug on a sensitivity plate using antibiotic disks is demonstrated by the diameter of the zone of? - ✔✔InhibitionHbA1C measurements are NOT ordinarily used to monitor long-term diabetic control in a diabetic with sickle cell anemia? - ✔✔True The red/pink color of the colonies seen on this MacConkey agar plate is an indication of? - ✔✔Lactose Fermentors Match the illustrations with the corresponding classification of bacteria - ✔✔A. A - Spirilla B. B - Cocci C. D - Vibros D. F - Bacilli The oval or curved multi-celled, dark-staining macroconidia divided by transverse septa only is characteristic of: - ✔✔Curvularia species 12. The Gram stain report to be issued based on the microscopic characteristics seen in the image on the right would most correctly be, "many WBC with..." (Choose the BEST response)? - ✔✔Gram Positive Cocci in Pairs A patient is taking cimetidine for a stomach ulcer. This drug inhibits CYP2D6. The patient is now prescribed amphetamine for narcolepsy. Amphetamine is metabolized by CYP2D6. What would you predict? - ✔✔A. The dose for the amphetamine needs to be lower than normal he prozone effect can be described by all of the following EXCEPT - ✔✔A. Results in a false positive reactionWhat is the composition of Howell-Jolly bodies? - ✔✔DNA 16. According to the National Diabetes Data Group recommendations, which of the following statements is TRUE with regards to the following findings? - ✔✔Fasting glucose = 130 mg/dl 2- hour post prandial glucose = 210 mg/dl 17. Where is the main site of action for monocytes after diapedesis? - ✔✔Body Tissues Polymerase chain reaction (PCR) copies DNA through repeated cycles of three basic steps. What is the correct order of these steps? - ✔✔A. Denaturation, annealing, and synthesis at 72°C The dematiaceous colony illustrated here grew to a diameter of 3 - 4 cm in 5 days. The dematiaceous fungus that can be ruled out is: - ✔✔Phialophora verrucosum 20. Enterococci can possess both intrinsic and acquired resistance. Which of the following represents the intrinsic resistance of a typical enterococcal strain? - ✔✔Resistance to clindamycin and trimethoprim-sulfamethoxasole Resistance to cephalosporins Which of the following is true of genotype screening in pharmacogenomics? - ✔✔Genotyping does not take into account drug interactions which can affect metabolismA population of small lymphocytes is gated for further evaluation in the flow cytometry laboratory. The scatterplot for one of the evaluations is shown on the right. How would you interpret this scatterplot? - ✔✔Cells in the gated population are coexpressing CD5 and CD20 (red cells in the Q2 square) A technologist is evaluating the red blood cell morphology on a peripheral blood smear. The image on the right is a representative field from the smear. How should the technologist describe the red blood cell morphology? - ✔✔A. Macrocytic, normochromic Corneal tissue may be transplanted successfully from one patient to another because? - ✔✔A. The cornea occupies a privileged site not usually seen by the immune system 26. In which of the following conditions would you expect to find Howell-Jolly bodies? - ✔✔Hyposplenism (low functioning spleen) Hypospleenism (low functioning spleen) Prozone effect? - ✔✔False negative due to antibody excess Postzone effect? - ✔✔False negative due to antigen excess 27. The federal government has categorized critical biological agents into three groups: A, B, and C. Those agents in category A are highest-priority because they: - ✔✔A. Can be easily disseminated or transmitted person-to-personThe most likely cause of an elevated serum potassium level in an apparently normal individual is - ✔✔Hemolysis Which of the following is most likely to interact with arterial walls, leading to deposition of cholesterol, and initiating or worsening atherosclerosis? - ✔✔Small Dense LDL 30. A 67-year-old homeless man was seen in the ambulatory clinic for chest pain and sputum production. A mycobacterial culture showed the following: rough, non-pigmented colonies, which grew after 2 weeks at 35oC and failed to grow at other temperatures, serpentine cording, a strongly positive niacin test, nitrate reduction, and loss of catalase activity after heating at 68oC in pH 7. What is the most likely identification? - ✔✔Mycobacterium tuberculosis The reactions in the tubes illustrated in this exercise (reading from left to right: KIA, Pseudosel, OF glucose, closed and open) indicate that the bacterial species in question is a: - ✔✔Glucose oxidizer The migration rate of proteins on cellulose acetate is primarily the result of: - ✔✔Ionic charge on the proteins 33. A complete blood count is performed on a post-surgical, post-transfusion patient. The red cell distribution width (RDW) reported with the automated cell count is 16.5%. The reference interval in this laboratory is 11-15%. What would be demonstrated on the peripheral smear that relates directly to the RDW value? - ✔✔AnisocytosisIf a disease or disorder causes serum binding proteins (such as albumin) to decrease, what may occur if the dose of a highly protein-bound drug with a narrow therapeutic window is not adjusted? - ✔✔A. The patient may experience toxic effects (high free drug fraction). Heinz Bodies - ✔✔ 35. Which of the following statements best describes the appearance of Cabot rings? - ✔✔Thin, reddish-violet-staining strands in the shapes of rings, figure eights, or the letter B Cabot Rings - ✔✔ Dohle Body - ✔✔ The most common Rh haplotype among whites is: - ✔✔DCE The increased resistance of MRSA strains to beta-lactam antibiotics is due to production of which of the following penicillin binding proteins (PBPs)? - ✔✔PBP 2a Which is not an application of real-time PCR? - ✔✔Amplification of DNA for northern blot B. Gram positive cocci isolated from a catheterized urine culture on a 76-year-old male gave the following reactions: - ✔✔A. Amplification of DNA for northern blotB. Gram positive cocci isolated from a catheterized urine culture on a 76-year-old male gave the following reactions: C. Blood agar- creamy, white, opaque colonies D. Catalase- positive E. Slide coagulase- negative F. Tube coagulase- negative G. Novobiocin- susceptible H. The next action the MLS should take is: A. Report the isolate as coagulase negative staphylococcus The best way to evaluate single nucleotide polymorphism (SNP) is by melting curve analysis? - ✔✔True 40. Match the urine sediment or crystal to the correct description - ✔✔A: ALKALINE URINE Amorphous Phosphates, Triple Phosphate,Ammonium biurate, Calcium Carbonate B. ACIDIC URINE Bilirubin, Cholesterol,Calcium Oxalates, Amorphous Urates What section of the MSDS would provide information about whether a chemical is carcinogenic? - ✔✔Health Hazzard Data The presence of gram-negative intracellular diplococci in a genital specimen from a FEMALE is diagnostic of gonorrhea. - ✔✔FalseWhich of the following does NOT have an impact on electrophoresis techniques in the clinical lab? - ✔✔amount of light present in electrophoresis box Following a myocardial infarction which of the following enzymes will be the first to become elevated: - ✔✔CK Lymphocyte - ✔✔ Nucleated Blood Cell - ✔✔ A phlebotomist at a local hospital recently had an accidental needle stick while drawing blood from a patient being treated for acute hepatitis B. Which serological marker from the patient would be of most value to the physician evaluating the phlebotomist's possible infection status? - ✔✔Hepatitis B e Antigen (HBeAg) A percent solution is prepared by combining grams of material (i.e NaOH) per 100ml of solvent. This calculation is shown below: - ✔✔5% NaOH = 5 g NaOH/100 mL desired volume = 500 mL 500 mL x (5 g NaOH / 100 mL) = 25 g NaOH Major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can: - ✔✔animals serve as a reservoir of infection50. The antibody MOST frequently present in systemic lupus erythematosus (SLE) is directed against: - ✔✔Nuclear antigen A. Polychromatophilic RBCs - ✔✔ Reticulocyte - ✔✔ 52. If a child's phenotype is Group O, the phenotype of the mother of the child is Group A and the phenotype of the father is group B what are the possible genotypes of both parents? - ✔✔AO & BO 53. Which of the erythrocyte inclusions listed below would appear on a Wright-stained peripheral blood smear as round, smooth, almost pyknotic, dark-purple staining bodies ranging in size from 0.5 to 1.0 micron in diameter and usually occuring singly in erythrocytes - ✔✔Howell-Jolly Bodies Howell-Jolly Bodies - ✔✔ 54. Autologous blood must be tested for which of the following before transfusion - ✔✔ABO & Rh 55. How many white blood cells (WBCs) would be considered normal for adult cerebrospinal fluid? - ✔✔0-5 WBCs/µL [Show More]

Last updated: 10 months ago

Preview 4 out of 15 pages