International Technologist in Cytogenetics ASCP Practice Test

Browse all practice questions for the International Technologist in Cytogenetics ASCP Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

Start practice testFlash cards
International Technologist in Cytogenetics ASCP Practice Test course image
Discover the Banding Patterns of Chromosome 10What is the number of bands on chromosome 10 in the 425 to 475 band level range?Exploring Disorders Not Linked to MicrodeletionsWhich of the following disorders is NOT associated with a microdeletion?How high-resolution banding helps in spotting DiGeorge syndrome’s microdeletionsHigh-resolution banding is particularly useful for diagnosing which condition?How Quinacrine and Acridine Orange Dyes Illuminate AT Rich DNAWhat region of the chromosome is specifically stained by quinacrine and acridine orange dyes?How to adjust the condenser diaphragm after Koehler illumination for better contrastAfter performing Koehler illumination, what adjustment should be made to ensure optimal contrast?How to Improve Contrast in Stained Chromosomes with Trypsin ExposureHow can indistinct bands with little contrast in stained chromosomes be corrected?Low Alpha-Fetoprotein levels signal trisomy risk in prenatal screeningIn the context of prenatal testing, low levels of which analyte would likely indicate a risk of trisomy?Understanding Acute Promyelocytic Leukemia and Its Designation as AML M3What is the designation for Acute Promyelocytic Leukemia?Understanding AML M0: Key Characteristics and DifferentiationWhat characterizes AML M0 type?Understanding AML M3 and Its Genetic RearrangementWhat type of AML has a genetic rearrangement of t(15;17)(q22;q11-12)?Understanding Control Signal Absence in FISH TestingWhat can be inferred if a single control signal is consistently absent across all cells during a FISH test?Understanding G-banding: The Best Choice for Subtle Chromosomal RearrangementsWhich banding technique would be the first choice if a subtle chromosomal rearrangement is suspected?Understanding How Matrix Size Impacts Image Resolution in CytogeneticsWhat determines the resolution of an image?Understanding How to Adjust the Brightness of a MicroscopeWhat is the method to adjust the brightness of a microscope?Understanding QFQ Staining and Its Role in CytogeneticsWhich banding technique is used to stain chromosomes to reveal AT-rich regions?Understanding Signs of True Mosaic Cases in Prenatal Testing ResultsWhat is a sign that suggests a true mosaic case from prenatal testing results?Understanding the Combinatorial Formula for M-FISH FluorochromesWhat formula is used to determine the number of combinations based on the number of fluorochromes (n) available in the M-FISH procedure?Understanding the Common Features of DiGeorge SyndromeWhat is a common characteristic feature of DiGeorge syndrome?Understanding the Depth of Field and Field of View in MicroscopyWhich type of objective provides the greatest depth of field and field of view?Understanding the First Steps in the Cytogenetics LabSamples that arrive at the cytogenetics lab should first be?Understanding the ISCN Nomenclature for Fragile X SyndromeWhat is the correct ISCN nomenclature for a male with fragile X syndrome?Understanding the Modal Number in Turner Syndrome with Isochromosome XqWhat is the correct modal number for a patient with Turner syndrome with an isochromosome Xq?Understanding the Modal Number of Chromosomes in Down Syndrome Translocation CarriersWhat is the modal number of chromosomes in a Down syndrome translocation carrier?Understanding the Nucleolar Organizer Region Staining in CytogeneticsWhat staining technique is most useful in determining the chromosomal origin of a small extra marker with satellites?Understanding the Primary Principle Behind Culturing Solid TumorsWhat is the primary principle behind culturing solid tumors?Understanding the Role of Collagenase in Tissue DissociationWhich enzyme is primarily responsible for breaking down tissues into single-cell suspensions?Understanding the Role of Fluorochromes in M-FISH ProcessesWhat role do fluorochromes play in the M-FISH process?Understanding the Role of Light Histograms in Automated KaryotypingWhat function does the light histogram serve in an automated karyotype system?Understanding the Significance of Dark Bands in GTG BandingWhat do the dark bands produced by routine GTG banding represent?Understanding the Unique Features of Inverted Microscopes for CytogeneticsWhat is a characteristic feature of an inverted microscope?Understanding the Value of Direct Analysis in FISH DiagnosticsIn FISH diagnostics for interphase testing, what is the most significant benefit of using direct analysis?Understanding Unbalanced Karyotypes in CytogeneticsWhich term describes the karyotype 46,XY,der(9)(t(9;10)(q32;q12)?Understanding What Limits Resolution in a Light MicroscopeWhat primarily limits resolution in a light microscope?What Does 'der' Stand for in Karyotype Notation?What does the "der" stand for in the karyotype notation der(9)?Why Can't You Locate Metaphase When Shifting to a Higher Lens?What is a potential reason a metaphase cannot be located when switching to a higher lens?
More practice questions

These questions are part of the practice quiz. Start practicing

  • Which culture medium is specifically recommended for demonstrating sister chromatid exchange?
  • If 50 out of 200 interphase nuclei have 3 signals in a prenatal aneusomy FISH analysis for chromosome 18, what does this indicate?
  • What does the numerical aperture of a lens indicate?
  • In the ISCN notation for a MLL FISH signal pattern of 1F 1R 1G, what is the correct interpretation?
  • What factors are critical to monitor in a CO2 incubator if cultures fail?
  • How many levels of brightness are available in an 8-bit grayscale image?
  • To what regulation can one refer to for the detection level of Prader-Willi syndrome?
  • Which of the following is NOT a function of the CCD camera in cytogenetics?
  • Which karyotypic abnormalities would recommend parental chromosomal analysis?
  • What cell type is most problematic if found in a CVS (chorionic villus) sample?
  • What banding procedure should be used to confirm the involvement of satellites in a chromosomal marker?
  • During FISH scoring for DiGeorge syndrome, the absence of an ARSA probe signal suggests what?
  • Why is it important to adjust lighting after changing to a higher magnification objective lens?
  • Which type of AML is characterized by acute monocytic leukemia?
  • If 50% of cells from an amniotic flask show 92,XXYY and the other 50% show 46,XY, what does this most likely indicate?
  • What temperature is necessary for probe storage in FISH procedures?
  • What should be confirmed to rule out pseudomosaicism when an abnormal cell is detected in situ?
  • Which cell type is preferred for long-term serial cytogenetic studies?
  • When might a laboratory need to take immediate action regarding a sample?
  • Which of the following are NOT advantages of FISH diagnostics?
  • Which type of microscope is typically used when cleaning a CVS (chorionic villus) sample?
  • What is the purpose of evaluating a new batch of hypotonic solution?
  • What is the suggested level for most constitutional specimens according to CAP regulations?
  • Which chromosome abnormality is associated with DiGeorge syndrome?
  • What type of stained chromosome would produce a better computer image?
  • When capturing a metaphase, what is a likely reason for the technician being unable to focus on the metaphase?
  • What is the main focus of studying Q-banding?
  • What is the relationship between wavelength and the ability to achieve resolution in microscopy?
  • What action should be taken first if a dish of amniotic fluid culture appears contaminated?
  • To improve visibility when viewing sparse metaphases under a phase scope, what can be adjusted?
  • What should a technologist do if a bone marrow sample is leaking in transport?
  • A blood sample can be utilized for cytogenetic study of a malignancy if which condition is met?
  • Which tissue has the best success rate and ability to detect abnormalities in spontaneous abortion cases?
  • What is the optimum pH level for the trypsin enzyme used in cytogenetic analysis?
  • To be considered mosaicism, how many cells must exhibit the abnormality in a 30-cell count?
  • What is the purpose of establishing a PHA-stimulated blood culture for a leukemia patient?
  • Which of the following results from a G-band karyotype is recognized as indicative of a chromosomal abnormality?
  • In the 500 to 550 band level range, how many bands are found on chromosome 10?
  • What factors might contribute to ALL cultures failing in a CO2 incubator?
  • Which technique is associated with increasing band resolution over GTG banding in microscopy?
  • Which type of probe is preferred for metaphase analysis?
  • What agent is used to reduce mycoplasma contamination?
  • The primary image of an object is magnified by which part of the microscope?
  • What does the term "starring-in" refer to in tissue culture?
  • Phytohemagglutinin (PHA) stimulates which type of cells into division?
  • What is the typical detection capability of high-resolution banding in cytogenetics?
  • Why do printed images appear different from those displayed on a computer screen?
  • When verifying a specimen for cytogenetic analysis, what piece of data is most crucial?
  • What is the most important pretreatment for age slides in FISH analysis?
  • What do the G-light bands produced by routine GTG banding represent?
  • What is the culture method used to obtain chromosome preparations from amniotic fluid?
  • What chromosome polymorphisms can be detected with Q-banding?
  • Which banding technique should be used if the addition of nonhomologous material to the q-arm of chromosome 16 is suspected?
  • When should you manipulate the diaphragm on a microscope?
  • According to CLIA '88, when must equipment be recalibrated?
  • Which of the following is NOT an effect of fixation?
  • What common issue may be indicated if chromosomes appear muddy and dark after staining?
  • What test is most critical to ensure proper cytogenetic characterization of a specimen?
  • If an incubator runs out of carbon dioxide for 6 hours, what pH change would you expect in the medium?
  • Why is it important to control the resolution of the image in cytogenetic imaging?
  • What specific genetic rearrangement is associated with AML M2 type?
  • According to CAP regulations, what is the minimum band level for constitutional specimens?
  • If GTG banded chromosomes appear ghost-like with little visible banding, how should one alter the banding preparation?
  • If a technician with a cold does not take precautions while handling samples, what contaminant is most likely to affect the specimens?
  • What technique is crucial for preventing microbial contamination in cultures?
  • What is the main outcome of Colcemid's action on cells?
  • A laboratory quality assurance program typically includes what component?
  • What is added in order to detect sister chromatid exchange (SCE)?
  • Which ingredient is not considered necessary in modified medium?
  • In cytogenetics, the term "velocardiofacial syndrome" is synonymous with which diagnosis?
  • In cytogenetic evaluations, why is monitoring the reagent's expiration dates important?
  • Which type of cell is analyzed using direct preparation in chorionic villus sampling (CVS)?
  • What is a typical clinical indication for conducting a peripheral blood G-band karyotype?
  • What is the next step if there are not enough metaphases to complete a cytogenetic study?
  • What tests should be performed on a newborn with suspected Prader-Willi syndrome?
  • After identifying 47,XX,+21 in a prenatal patient, what is the next recommended step?
  • What information is needed to confirm the chromosome number when a possible overlapping chromosome is suspected in a karyotype?
  • What is the observed result under an electron microscope as a consequence of all banding procedures?
  • What condition is indicative of a successful harvest from a culture?
  • How is the magnification of an object calculated?
  • What is the purpose of conducting NOR banding?
  • Which genetic change is often found in AML M5 type?
  • What banding technique would confirm an inversion of chromosome 9?
  • What could be a reason for a drying oven to not maintain the proper temperature?
  • What effect does PHA cause in culture?
  • What is the main application of M-FISH?
  • If 29 out of 30 metaphases are normal in an amniotic fluid culture, what does one cell with a translocation signify?
  • How many color combinations can be obtained from 5 fluorochromes?
  • Which action can help a technologist reduce the risk of repetitive motion injuries during computer analysis?
  • What is the purpose of establishing an unstimulated blood culture for a leukemia patient?
  • What should a tech consider when interpreting FISH analysis results?
  • What is the nomenclature for a patient with Down syndrome referred for a hematologic disorder where only trisomy 21 was found?
  • When using a fluorescein dye labeled probe during the FISH procedure, which counterstain should be applied?
  • What is the significance of identifying 47,XX,+21 in prenatal cytogenetics?
  • How often should the condenser be focused when imaging on a microscope?
  • What is one of the characteristics of G-dark bands in chromosome analysis?
  • What is the best type of objective to use for photographing a met with optimal results?
  • What is a common light source that can produce fluorescence in cytogenetic analyses?
  • Which of the following chemicals are intercalating agents?
  • When harvesting peripheral blood cultures, aseptic technique is less critical following the use of?
  • When analyzing chromosomes with GTG banding, what do heterochromatin regions primarily consist of?
  • What is the best method to avoid producing ghost-like, pale chromosomes while staining?
  • Acute Megakaryocytic Leukemia is classified under which AML subtype?
  • What does the 't' in t(8;21)(q22;q22) represent in terms of genetic notation?
  • What technique can be used to prevent overspreading of chromosomes when using a new hypotonic solution?
  • What is the correct nomenclature for a hematologic disorder with trisomy 21 in 6 cells and 14 normal cells?
  • Peripheral blood G-band karyotype analysis is typically requested for which of the following reasons?
  • Quinacrine molecules bind to DNA specifically at which regions?
  • How should caustic and corrosive chemicals be stored?
  • A fetus with an increased risk for trisomy 18 would have serum analytes that are categorized as?
  • If a regulatory inspector requests a copy of a lab patient's record, what should the technician do?
  • Which statement is true regarding commercially prepared media for cell culture?
  • For optimal resolution in chromosome imaging, which objective lens should be used?
  • What does FISH stand for in the context of cytogenetics?
  • Which AML type is associated with the genetic change inv(16)(p13q22)?
  • What is the defining feature of Acute Myelomonocytic Leukemia?
  • The eyepiece of a microscope serves what purpose?
  • A change of 1 pH unit in culture medium is caused by a change in CO2 concentration of how much?
  • For successful harvest, each new batch of hypotonic solution should be evaluated by?
  • According to CLIA 1988, how often must laboratory equipment be recalibrated?
  • What component of a standard brightfield microscope can manipulate contrast?
  • What is the impact of increasing the postwash temperature on FISH slides?
  • Which procedure should be performed first if sequential banding techniques are required?
  • In a patient with questionable leukemia and low white cell count, which procedure is least likely to be informative?
  • Which type of microscope is necessary for viewing unstained chromosome preparations?
  • What must be included when recording the modal number?
  • Which specimen type is recommended for cytogenetic analysis in cases of Turner syndrome?
  • Which aperture diaphragm setting is optimal for achieving the best resolution?
  • Which program should be chosen to capture the FISH image using the Applied Imaging system?
  • What is the main purpose of Koehler illumination in microscopy?
  • What fragile X condition requires a folic acid deficient medium for culture?
  • This type of culture has a decreased turnaround time and allows easier distinction between mosaicism and pseudomosaicism. What is it?
  • What is one common method for enhancing the contrast in microscope images?
  • What aspect of chromosome preparation can affect the trypsin time during slide making?
  • How many bands are present on chromosome 10 in the range of 350 to 400 band level?
  • When logging a culture failure, what is the most important detail to document?
  • What should be done if high non-specific background is observed on a postwashed FISH slide?
  • What distinguishes AML M7 type from other subtypes of AML?
  • What is the most important factor that affects the quality of chromosomes viewed under a phase contrast scope?
  • Which chromosome is most different between C-banding and G-banding techniques?
  • What should be used on a cultured CVS sample to obtain more slides for analysis?
  • What is the significance of chromosomal markers in cytogenetic analysis?
  • What factor affects metaphases on a slide during the slide-making process?
  • Which procedure is essential when preparing slides for fluorescence in cytogenetic studies?
  • What is the optimal method for achieving the best banding quality for patient samples?
  • What type of objective lens is optimal for capturing chromosome images?
  • To avoid empty magnification in microscopy, the total magnification should not exceed what value?
  • A Cri-du-chat patient typically has which type of chromosome abnormality?
  • In the context of chromosome analysis, what does t(9;10) signify?
  • What is essential to confirm the integrity of a new hypotonic solution batch?
  • What is the modal number for a diploid karyotype with an additional CBG negative marker chromosome?
  • How should fetal and placental tissue suspected of fungal contamination be cultured?
  • How does the aperture stop in a compound light microscope affect resolution and contrast?
  • Which factor is NOT important for achieving sharp images in microscopy?
  • Which type of acute leukemia is associated with the genetic change t(8;21)(q22;q22)?
  • What chromosomal condition is most associated with the karyotype 46,XX,der(14;21)(q10;q10),+21?
  • What chemical is commonly used for the cryopreservation of cells?
  • For what purpose is proficiency testing utilized in a laboratory?
  • What do the field and aperture diaphragms control?
  • AML M6 type is associated with which chromosomal abnormalities?
  • What likely caused media in the incubator to turn magenta and result in cell death?
  • Collagenase, pronase, and trypsin are classified as?
  • 24 hours after culture initiation, a single dish from an amniotic fluid turns cloudy. Which cultures should be disposed?
  • What should the diaphragms NOT be used to control?
  • Which location can be shown by C-band?
  • Which of the following is an advantage of FISH diagnostics concerning interphase testing?
  • Which type of AML is characterized by the absence of differentiation and associated chromosome changes?
  • When is the best time to freeze cells for long-term storage?
  • Which of the following ARE characteristics of the horizontal laminar flow hood?
  • When looking at a slide under a phase contrast scope, a lot of cytoplasm around the mets may indicate?
  • To rule out the presence of the t(9;22) in a patient suspected of having CML, which tissue should be cultured?
  • What is the role of EDTA in the context of trypsin exposure for cultured cells?
  • What could be a reason for using Nystatin in culturing fetal tissue?
  • Dynamic range in a camera determines its ability to capture what aspect?
  • What is the characteristic defect noted in Rubinstein-Taybi syndrome?
  • Why is it critical to handle samples with aseptic technique during cytogenetic analysis?
  • What is true about slide preparation for FISH?
  • What determines the exciter and barrier filters used in fluorescent microscopy?
  • What change would be expected in the cultures if an incubator ran out of carbon dioxide?
  • What characteristic of a chromosomal region is most affected by chromosomal collapse?
  • Where should a technician select tissue from when submitting placental tissue for chromosome analysis to optimize fetal cell acquisition?
  • How can stringency for each probe be adjusted when using the same hybridization incubator for different probe strategies?
  • What distinguishes Acute Erythroleukemia (AML M6)?
  • What is the minimum band level needed to detect Prader-Willi syndrome?
  • At what temperature should FITC-avidin be stored for FISH procedures?
  • Which statements regarding G-banding are true?
  • What unique facial feature is often noted in patients with DiGeorge syndrome?
  • After G-banding analysis, which procedure would be most helpful in determining if a deletion has occurred in chromosome 10?
  • What should not be controlled by the aperture diaphragm?
  • What potential impact could improper sealing of the drying oven door have?
  • Which contaminant can be detected through a specific stain used on the sample and is commonly associated with sick technicians?
  • What temperature is necessary for simultaneous denaturation in FISH procedures?
  • How would a technologist know when to harvest an in situ amniotic fluid culture?
  • Which chromosome regions contain dark bands that can be used as indicators for preparing images?
  • What specific type of light is crucial for activating fluorescent probes in cytogenetic applications?
  • What is the best agent to use against mycoplasma?
  • Which process is essential before conducting a cytogenetic analysis?
  • What happens to the enzymatic activity of trypsin when pH increases to 8?
  • If a laboratory is consistently having problems with poor culture growth, what measures could remedy this situation?
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy