MLS ASCP Immunology Actual Exam Newest 2025/2026
Complete All Questions And Correct Detailed Answers
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Version!!
What feature is most often found with patients with a splenectomy on a Wright's
stained blood smear? - ans -Howell-Jolly bodies
Patients with antibody to the following antigen are immune to Hepatitis B: - ans -
Surface antigen (HbSAg)
Which two of the following tests are helpful for documenting previous
Streptococcal throat and skin infections: - ans -ASO titer and Anti-DNase B
In mass spectrometry, the "appearance potential" is defined as the: - ans -
Minimum energy required for the appearance of a particular fragment ion in mass
spectrum
What is generally accepted as the lower threshold value for semen pH from fertile
males? - ans -7.2
Nephrotic Syndrome: - ans -Caused by damage to the kidneys, especially the
basement membrane of the glomerulus; which causes abnormal excretion of
protein and red blood cells in the urine. Fats are also present in the urine in most
cases. A foamy appearance of the urine is a key characteristic of this condition.
Clinical symptoms include:
Swelling
Weight gain from fluid retention
Poor appetite
High blood pressure
Key Biochemical reactions for Enterobacteriaceae: - ans -The key biochemical
reactions by which the family Enterobacteriaceae can be identified include
,fermentation of carbohydrates, reduction of nitrates to nitrites and the absence
of cytochrome oxidase activity.
ANA - ans -See 2 quiz #27
Prozone effect: - ans -Results in a false positive reaction; is the result of antibody
excess and dilution of antibody can help prevent its occurrence
Purpose of a bi-chromatic analyzer with dual wavelengths is: - ans -Minimize the
effect of interference
Key characteristics of Micrococcus: - ans -Susceptible to bacitracin ("A") and
resistant to furazolidone; gram positive cocci in tetras, bacteria cells of
micrococcus luteus are larger than those of the staphylococci and can arrange in
tetras
What is the glomerular filtration rate for a patient with a serum creatinine of 2
mg/dL, if the urine creatinine was 124 mg/dL and the urine volume was 2.2 L/24
hrs? - ans -95 mL/min
One method of calculating a glomerular filtration rate is using creatinine and
urine volume to determine creatinine clearance. The equation is as follows:
Creatinine Clearance = (urine creatinine X urine flow rate) / plasma creatinine;
where urine flow rate = volume in mL /24 hours x h/60 min)
In this case = creatinine clearance = 124 X (2200/24 x hour/60) / 2 = 94.7 or 95
ml/min
Estrogen and progesterone markers are most commonly used to provide
prognostic information about: - ans -Breast cancer
The prozone effect ( when performing a screening titer) is most likely to result in:
- ans -Prozone effect (due to antibody excess) will result in an initial false negative
in spite of the large amount of antibody in the serum, followed by a positive result
as the specimen is diluted.
, Which of the following Rh antigens is found the highest frequency in the
Caucasian population:
A. C
B. E
C. c
D. e - ans -D. e
The accuracy of an immunoassay is its ability to discriminate between results that
are true positives and results that are true negatives. Two parameters of test
accuracy are specificity and sensitivity. Which of these statements apply to an
immunoassay with high specificity, but low sensitivity? - ans -Accurately identifies
the absence of disease and has few false-positives
A test with high specificity accurately detects the absence of disease. The more
specific a test is, the fewer false-positive results will occur. A test with high
sensitivity accurately identifies the presence of disease. The more sensitive a test,
the fewer false-negative results it produces. In the case stated in this question,
the immunoassay has high specificity, so it has few false-positives and will
accurately detect those individuals who do not have the disease or condition that
is being tested for. However, the test has low sensitivity, so it may not identify all
individuals who actually have the disease; it may produce many false-negative
results.
Distinguishing characteristics of Micrococcus luteus: - ans -Resistance to
furazolidone is one of the key characteristics by which members of the genus
Micrococcus (resistant) can be separated from members of the genus
Staphylococcus (susceptible). Micrococcus species also are susceptible to
novobiocin and to bacitracin, although the zone of inhibition to the "A" disk is
often small (as shown in this photograph).
The sickling phenomenon observed in erythrocytes containing hemoglobin S may
be induced by which of the following? - ans -Reducing agents actually induce the
sickling phenomenon in RBCs when they contain hemoglobin S.
If an autologous blood donor weighs 35 kg, how much blood can be collected for
later transfusion? - ans -315 mL
Complete All Questions And Correct Detailed Answers
(Verified Answers) |Already Graded A+||Brand New
Version!!
What feature is most often found with patients with a splenectomy on a Wright's
stained blood smear? - ans -Howell-Jolly bodies
Patients with antibody to the following antigen are immune to Hepatitis B: - ans -
Surface antigen (HbSAg)
Which two of the following tests are helpful for documenting previous
Streptococcal throat and skin infections: - ans -ASO titer and Anti-DNase B
In mass spectrometry, the "appearance potential" is defined as the: - ans -
Minimum energy required for the appearance of a particular fragment ion in mass
spectrum
What is generally accepted as the lower threshold value for semen pH from fertile
males? - ans -7.2
Nephrotic Syndrome: - ans -Caused by damage to the kidneys, especially the
basement membrane of the glomerulus; which causes abnormal excretion of
protein and red blood cells in the urine. Fats are also present in the urine in most
cases. A foamy appearance of the urine is a key characteristic of this condition.
Clinical symptoms include:
Swelling
Weight gain from fluid retention
Poor appetite
High blood pressure
Key Biochemical reactions for Enterobacteriaceae: - ans -The key biochemical
reactions by which the family Enterobacteriaceae can be identified include
,fermentation of carbohydrates, reduction of nitrates to nitrites and the absence
of cytochrome oxidase activity.
ANA - ans -See 2 quiz #27
Prozone effect: - ans -Results in a false positive reaction; is the result of antibody
excess and dilution of antibody can help prevent its occurrence
Purpose of a bi-chromatic analyzer with dual wavelengths is: - ans -Minimize the
effect of interference
Key characteristics of Micrococcus: - ans -Susceptible to bacitracin ("A") and
resistant to furazolidone; gram positive cocci in tetras, bacteria cells of
micrococcus luteus are larger than those of the staphylococci and can arrange in
tetras
What is the glomerular filtration rate for a patient with a serum creatinine of 2
mg/dL, if the urine creatinine was 124 mg/dL and the urine volume was 2.2 L/24
hrs? - ans -95 mL/min
One method of calculating a glomerular filtration rate is using creatinine and
urine volume to determine creatinine clearance. The equation is as follows:
Creatinine Clearance = (urine creatinine X urine flow rate) / plasma creatinine;
where urine flow rate = volume in mL /24 hours x h/60 min)
In this case = creatinine clearance = 124 X (2200/24 x hour/60) / 2 = 94.7 or 95
ml/min
Estrogen and progesterone markers are most commonly used to provide
prognostic information about: - ans -Breast cancer
The prozone effect ( when performing a screening titer) is most likely to result in:
- ans -Prozone effect (due to antibody excess) will result in an initial false negative
in spite of the large amount of antibody in the serum, followed by a positive result
as the specimen is diluted.
, Which of the following Rh antigens is found the highest frequency in the
Caucasian population:
A. C
B. E
C. c
D. e - ans -D. e
The accuracy of an immunoassay is its ability to discriminate between results that
are true positives and results that are true negatives. Two parameters of test
accuracy are specificity and sensitivity. Which of these statements apply to an
immunoassay with high specificity, but low sensitivity? - ans -Accurately identifies
the absence of disease and has few false-positives
A test with high specificity accurately detects the absence of disease. The more
specific a test is, the fewer false-positive results will occur. A test with high
sensitivity accurately identifies the presence of disease. The more sensitive a test,
the fewer false-negative results it produces. In the case stated in this question,
the immunoassay has high specificity, so it has few false-positives and will
accurately detect those individuals who do not have the disease or condition that
is being tested for. However, the test has low sensitivity, so it may not identify all
individuals who actually have the disease; it may produce many false-negative
results.
Distinguishing characteristics of Micrococcus luteus: - ans -Resistance to
furazolidone is one of the key characteristics by which members of the genus
Micrococcus (resistant) can be separated from members of the genus
Staphylococcus (susceptible). Micrococcus species also are susceptible to
novobiocin and to bacitracin, although the zone of inhibition to the "A" disk is
often small (as shown in this photograph).
The sickling phenomenon observed in erythrocytes containing hemoglobin S may
be induced by which of the following? - ans -Reducing agents actually induce the
sickling phenomenon in RBCs when they contain hemoglobin S.
If an autologous blood donor weighs 35 kg, how much blood can be collected for
later transfusion? - ans -315 mL
