ASCP CG CERTIFICATION EXAM PRACTICE EWEST 2025
ACTUAL EXAM WITH COMPLETE 170 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED PASS
What type of objective provides the greatest depth of field and field of view? -
✔✔✔ Correct Answer > Low power
Which type of microscope is used when cleaning a CVS (chorionic villus) sample? -
✔✔✔ Correct Answer > Dissection
What is the modal number (default number of chromosomes in a cell) for a Down
syndrome translocation carrier? - ✔✔✔ Correct Answer > 45
What is the best tissue to use for both a good success rate and abnormality
detection in spontaneous abortion miscarriages? - ✔✔✔ Correct Answer > Chorionic villi
What is a possible cause for a drying oven to not maintain a proper temperature?
- ✔✔✔ Correct Answer > The door does not seal properly
If a tech with a cold and sneezing does not take proper precautions while setting
up amniotic fluid samples, the specimen could become contaminated with: - ✔✔✔
Correct Answer > Mycoplasma
,Which cell type is most problematic if found in a CVS (chorionic villus) sample? -
✔✔✔ Correct Answer > Decidua (maternal tissue)
Why is it necessary to adjust the amount of light after changing the objective
lens? - ✔✔✔ Correct Answer > Higher magnification needs more light,
Proper lighting is needed to see specimen detail,
and the lens aperture decreases with higher magnificaction lenses
After performing koehler illumination, what other scope part should be adjusted
to ensure optimal contrast between light and dark bands of the chroms? - ✔✔✔
Correct Answer > The condenser diaphragm should be closed down by 1/4 to 1/3
The primary limiting factor for resolution in a light microscope is: - ✔✔✔ Correct
Answer > The wavelength of light
r = (wavelength)/2NA
NA can be adjusted through the type of objective being used, so the only part that
cannot be actively changed is the wavelenth of light
When reviewing a final karyotype a possible overlapper chromosome is
suspected. What is needed to confirm the chrom # of this cell? - ✔✔✔ Correct Answer >
ID # of the patient,
Scope used to capture the cell analyzed, and
the coordinates of the met
, A fetus with an increased risk for trisomy 18 would have a serum analytes that is: -
✔✔✔ Correct Answer > low AFP, low hCG, and low uE3
AFP = Alpha feto protein
hCG = human chorionic gonadotropin
uE3 = Unconjugated estriol
Parental chrom analysis would be recommended for these karyotypic abn's: -
✔✔✔ Correct Answer > 46,XX,der(14;21)(q10;q10),+21
del(13q)
dup(11q)
50% of cells from an amniotic flask have 92,XXYY and the other 50% have 46,XY.
This probably indicated: - ✔✔✔ Correct Answer > Pseudomosaicism
The type of cell analyzed with the CVS direct preparation is: - ✔✔✔ Correct Answer >
cytotrophoblast
Peripheral blood G-band karyotype analysis is requested for all the following: -
✔✔✔ Correct Answer > Multiple malformations seen in a newborn
Mental retardation of unknown etiology
Multiple miscarriages
A technologist wants to stain chromosomes using a banding technique that
manifests AT-rich regions on chromosomes. What staining procedure should he
use? - ✔✔✔ Correct Answer > QFQ
ACTUAL EXAM WITH COMPLETE 170 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED PASS
What type of objective provides the greatest depth of field and field of view? -
✔✔✔ Correct Answer > Low power
Which type of microscope is used when cleaning a CVS (chorionic villus) sample? -
✔✔✔ Correct Answer > Dissection
What is the modal number (default number of chromosomes in a cell) for a Down
syndrome translocation carrier? - ✔✔✔ Correct Answer > 45
What is the best tissue to use for both a good success rate and abnormality
detection in spontaneous abortion miscarriages? - ✔✔✔ Correct Answer > Chorionic villi
What is a possible cause for a drying oven to not maintain a proper temperature?
- ✔✔✔ Correct Answer > The door does not seal properly
If a tech with a cold and sneezing does not take proper precautions while setting
up amniotic fluid samples, the specimen could become contaminated with: - ✔✔✔
Correct Answer > Mycoplasma
,Which cell type is most problematic if found in a CVS (chorionic villus) sample? -
✔✔✔ Correct Answer > Decidua (maternal tissue)
Why is it necessary to adjust the amount of light after changing the objective
lens? - ✔✔✔ Correct Answer > Higher magnification needs more light,
Proper lighting is needed to see specimen detail,
and the lens aperture decreases with higher magnificaction lenses
After performing koehler illumination, what other scope part should be adjusted
to ensure optimal contrast between light and dark bands of the chroms? - ✔✔✔
Correct Answer > The condenser diaphragm should be closed down by 1/4 to 1/3
The primary limiting factor for resolution in a light microscope is: - ✔✔✔ Correct
Answer > The wavelength of light
r = (wavelength)/2NA
NA can be adjusted through the type of objective being used, so the only part that
cannot be actively changed is the wavelenth of light
When reviewing a final karyotype a possible overlapper chromosome is
suspected. What is needed to confirm the chrom # of this cell? - ✔✔✔ Correct Answer >
ID # of the patient,
Scope used to capture the cell analyzed, and
the coordinates of the met
, A fetus with an increased risk for trisomy 18 would have a serum analytes that is: -
✔✔✔ Correct Answer > low AFP, low hCG, and low uE3
AFP = Alpha feto protein
hCG = human chorionic gonadotropin
uE3 = Unconjugated estriol
Parental chrom analysis would be recommended for these karyotypic abn's: -
✔✔✔ Correct Answer > 46,XX,der(14;21)(q10;q10),+21
del(13q)
dup(11q)
50% of cells from an amniotic flask have 92,XXYY and the other 50% have 46,XY.
This probably indicated: - ✔✔✔ Correct Answer > Pseudomosaicism
The type of cell analyzed with the CVS direct preparation is: - ✔✔✔ Correct Answer >
cytotrophoblast
Peripheral blood G-band karyotype analysis is requested for all the following: -
✔✔✔ Correct Answer > Multiple malformations seen in a newborn
Mental retardation of unknown etiology
Multiple miscarriages
A technologist wants to stain chromosomes using a banding technique that
manifests AT-rich regions on chromosomes. What staining procedure should he
use? - ✔✔✔ Correct Answer > QFQ
