1|Page
General MLS Questions with 100% Verified Answers
UPDATED!!!
Marked rouleaux is most often associated with which disorder?
multiple myeloma
What is true regarding the bone marrow differential?
Nucleated red cells: 75
Mature and immature granulocytes: 225
Plasma cells: 200
M:E ratio is normal but there are more plasma cells than
normal
What RBC morphology will prevent an elevated sed rate even
when the patient has infection or inflammation?
sickle cells and spherocytes
What is the most likely cause of variable reaction strengths in
IAT?
dosage
The antibodies which show dosage most often are Kidd and
Duffy.
True
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Ficin enzyme treatment breaks off the Duffy and MNS antigen,
preventing antibodies in serum from reacting with them.
True
Enzyme treated panel cells strengthen many Rh antibodies.
True
Duffy, Kell and Kidd are room temperature-reacting IgM
antibodies.
False
When selecting a panel cell for positive quality control, select
one that is
heterozygous for the desired antigen
IgG alloantibodies are generally more significant than IgM allos.
True
Which form of calcium is a more sensitive indicator of calcium
status in an acutely ill patient?
ionized
What is the leading cause of hypercalcemia?
hyperparathyroidism
Total calcium levels cannot be reliably determined in patients
who also have decreased levels of what other analyte?
albumin
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In the presence of bone disorders, what enzyme is typically
elevated?
ALP
The immunoglobulin present in excess amount in
Waldenstrom's macroglobulinemia is:
IgM
At the time of a patient's diagnosis, which analyte, when in high
levels, indicates a poorer disease prognosis?
beta-2 macroglobulin
The patient developed flank pain, fever, dysuria, urgency, and
frequency. The urine specimen submitted for culture arrived 30
minutes after collection. Urine culture results (a 0.001 mL loop
was used):
blood agar: 150 colonies; 1 colony type, gray, nonhemolytic
MacConkey: no growth
catalase: no bubbles
bile-esculin: black
6.5% salt tolerance: turbid
>10^5 enterococci per mL
Concerning ASTs for enterococci, vancomycin ASTs should be
incubated for 16-18 hrs.
False
What would explain the differences between urine dipstick
protein and SSA results?
, 4|Page
The dipstick protein is sensitive to only albumin, wheras the SSA
will pick up albumin, globulins and Bence Jones protein.
What do these urine results suggest:
Glucose: Neg Microscopic:
Bilirubin: Neg Epi: 0.5/HPF
Ketone: Neg RBC: 5-10/HPF
SG: 1.025 WBC: 30-40/HPF
Blood: 1+ WBC cast: 2.5/LPF
pH: 5.0 Bacteria 3+
Protein: Trace SSA: 3+
Urobilinogen: 0.1
Nitrite: Neg
Leukocytes: 3+
pyelonephritis
What specific finding differentiates pyelonephritis from cystitis:
Glucose: Neg Microscopic:
Bilirubin: Neg Epi: 0.5/HPF
Ketone: Neg RBC: 5-10/HPF
SG: 1.025 WBC: 30-40/HPF
Blood: 1+ WBC cast: 2.5/LPF
pH: 5.0 Bacteria 3+
Protein: Trace SSA: 3+
Urobilinogen: 0.1
Nitrite: Neg
Leukocytes: 3+
WBC casts
General MLS Questions with 100% Verified Answers
UPDATED!!!
Marked rouleaux is most often associated with which disorder?
multiple myeloma
What is true regarding the bone marrow differential?
Nucleated red cells: 75
Mature and immature granulocytes: 225
Plasma cells: 200
M:E ratio is normal but there are more plasma cells than
normal
What RBC morphology will prevent an elevated sed rate even
when the patient has infection or inflammation?
sickle cells and spherocytes
What is the most likely cause of variable reaction strengths in
IAT?
dosage
The antibodies which show dosage most often are Kidd and
Duffy.
True
,2|Page
Ficin enzyme treatment breaks off the Duffy and MNS antigen,
preventing antibodies in serum from reacting with them.
True
Enzyme treated panel cells strengthen many Rh antibodies.
True
Duffy, Kell and Kidd are room temperature-reacting IgM
antibodies.
False
When selecting a panel cell for positive quality control, select
one that is
heterozygous for the desired antigen
IgG alloantibodies are generally more significant than IgM allos.
True
Which form of calcium is a more sensitive indicator of calcium
status in an acutely ill patient?
ionized
What is the leading cause of hypercalcemia?
hyperparathyroidism
Total calcium levels cannot be reliably determined in patients
who also have decreased levels of what other analyte?
albumin
,3|Page
In the presence of bone disorders, what enzyme is typically
elevated?
ALP
The immunoglobulin present in excess amount in
Waldenstrom's macroglobulinemia is:
IgM
At the time of a patient's diagnosis, which analyte, when in high
levels, indicates a poorer disease prognosis?
beta-2 macroglobulin
The patient developed flank pain, fever, dysuria, urgency, and
frequency. The urine specimen submitted for culture arrived 30
minutes after collection. Urine culture results (a 0.001 mL loop
was used):
blood agar: 150 colonies; 1 colony type, gray, nonhemolytic
MacConkey: no growth
catalase: no bubbles
bile-esculin: black
6.5% salt tolerance: turbid
>10^5 enterococci per mL
Concerning ASTs for enterococci, vancomycin ASTs should be
incubated for 16-18 hrs.
False
What would explain the differences between urine dipstick
protein and SSA results?
, 4|Page
The dipstick protein is sensitive to only albumin, wheras the SSA
will pick up albumin, globulins and Bence Jones protein.
What do these urine results suggest:
Glucose: Neg Microscopic:
Bilirubin: Neg Epi: 0.5/HPF
Ketone: Neg RBC: 5-10/HPF
SG: 1.025 WBC: 30-40/HPF
Blood: 1+ WBC cast: 2.5/LPF
pH: 5.0 Bacteria 3+
Protein: Trace SSA: 3+
Urobilinogen: 0.1
Nitrite: Neg
Leukocytes: 3+
pyelonephritis
What specific finding differentiates pyelonephritis from cystitis:
Glucose: Neg Microscopic:
Bilirubin: Neg Epi: 0.5/HPF
Ketone: Neg RBC: 5-10/HPF
SG: 1.025 WBC: 30-40/HPF
Blood: 1+ WBC cast: 2.5/LPF
pH: 5.0 Bacteria 3+
Protein: Trace SSA: 3+
Urobilinogen: 0.1
Nitrite: Neg
Leukocytes: 3+
WBC casts
