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MLS (Medical Laboratory Scientist) ASCP Exam
Newest 2025 with accurate and verified
questions covering clinical chemistry,
hematology, microbiology, immunohematology,
molecular diagnostics, laboratory operations,
and quality control. Designed to prepa
1) After receiving a 24 hr. urine for quantitative total
protein analysis the technician must first:
a. subculture the urine for bacteria
b. add the appropriate preservative
c. screen for albumin using a dipstick
d. measure the total volume - .....ANSWER ...✔✔ d
(measure the total volume)
1) Following overnight fasting, hypoglycemia in adults is
defined as a glucose of:
a. <70 mg/dL (<3.9 mmol/L)
b. <60 mg/dL (<3.3mmol/L)
c. <55 mg/dL (<3.0mmol/L)
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d. <45mg/dL (<2.5mmol/L) - .....ANSWER ...✔✔ d
(Diagnosis of hypoglycemia in adults.)
1) Proper media for culture of a urethral discharge from
a man include:
a. sheep blood and phenylethyl alcohol agars
b. eosin methylene blue and sheep blood agars
c. thioglycollate broth and chocolate agar
d. chocolate agar and modified Thayer Martin agar -
.....ANSWER ...✔✔ d (Chocolate agar and chocolate
agar-based selective media should be used for
recovery of Neisseria gonorrhoeae from urethral
discharge. Chocolate agar provides the nutrients
required by N gonorrhoeae and selective media
contains antimicrobial agents that inhibits other
organisms and permits recovery of pathogenic
Neisseria.)
1) The light-colored zone adjacent to the nucleus in a
plasmacyte is the:
a. ribosome
b. chromatin
c. mitochondria
d. Golgi area - .....ANSWER ...✔✔ d (Morphological
identifiable perinuclear halo.)
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1) The minimum Hgb concentration in a fingerstick from a
male blood donor is:
a. 12.0 g/dL (120 g/L)
b. 12.5 g/dL (125 g/L)
c. 13.5 g/dL (135 g/L)
d. 15.0 g/dL (150 g/L) - .....ANSWER ...✔✔ b (All
donors, regardless of sex, require a minimum
hemoglobin of 12.5 g/dL [125 g/L]. The value must not
be performed on an earlobe stick.)
10) A 45 yr. old woman has a fasting serum glucose
concentration of 95 mg/dL (5.2 mmol/L) and a 2 hr.
postprandial glucose concentration of 105 mg/dL (5.8
mmol/L). The statement which best describes this
patient's fasting serum glucose concentration is:
a. normal; reflecting glycogen breakdown by the liver
b. normal; reflecting glycogen breakdown by skeletal
muscle
c. abnormal; indication diabetes mellitus
d. abnormal; indicating hypoglycemia - .....ANSWER
...✔✔ a (Factors contributing to PBS.)
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10) During the preparation of Platelet Concentrates
from whole blood, the blood should be:
a. cooled towards 6 C
b. cooled towards 20-24 C
c. warmed to 37 C
d. heated to 57 C - .....ANSWER ...✔✔ b (Platelets
are prepared and stored at 20-24 C for optimum
function.)
10) Failure to observe RBC casts in a urine specimen can
be caused by:
a. staining the specimen
b. centrifuging an unmixed specimen
c. mixing the sediment after decantation
d. examining the sediment first under low power -
.....ANSWER ...✔✔ b (centrifuging an unmixed
specimen)
10) In order for hemoglobin to combine reversibly with
oxygen, the iron must be:
a. complexed with haptoglobin
b. freely circulating in the cytoplasm
c. attached to transferrin
MLS (Medical Laboratory Scientist) ASCP Exam
Newest 2025 with accurate and verified
questions covering clinical chemistry,
hematology, microbiology, immunohematology,
molecular diagnostics, laboratory operations,
and quality control. Designed to prepa
1) After receiving a 24 hr. urine for quantitative total
protein analysis the technician must first:
a. subculture the urine for bacteria
b. add the appropriate preservative
c. screen for albumin using a dipstick
d. measure the total volume - .....ANSWER ...✔✔ d
(measure the total volume)
1) Following overnight fasting, hypoglycemia in adults is
defined as a glucose of:
a. <70 mg/dL (<3.9 mmol/L)
b. <60 mg/dL (<3.3mmol/L)
c. <55 mg/dL (<3.0mmol/L)
,2|Page
d. <45mg/dL (<2.5mmol/L) - .....ANSWER ...✔✔ d
(Diagnosis of hypoglycemia in adults.)
1) Proper media for culture of a urethral discharge from
a man include:
a. sheep blood and phenylethyl alcohol agars
b. eosin methylene blue and sheep blood agars
c. thioglycollate broth and chocolate agar
d. chocolate agar and modified Thayer Martin agar -
.....ANSWER ...✔✔ d (Chocolate agar and chocolate
agar-based selective media should be used for
recovery of Neisseria gonorrhoeae from urethral
discharge. Chocolate agar provides the nutrients
required by N gonorrhoeae and selective media
contains antimicrobial agents that inhibits other
organisms and permits recovery of pathogenic
Neisseria.)
1) The light-colored zone adjacent to the nucleus in a
plasmacyte is the:
a. ribosome
b. chromatin
c. mitochondria
d. Golgi area - .....ANSWER ...✔✔ d (Morphological
identifiable perinuclear halo.)
,3|Page
1) The minimum Hgb concentration in a fingerstick from a
male blood donor is:
a. 12.0 g/dL (120 g/L)
b. 12.5 g/dL (125 g/L)
c. 13.5 g/dL (135 g/L)
d. 15.0 g/dL (150 g/L) - .....ANSWER ...✔✔ b (All
donors, regardless of sex, require a minimum
hemoglobin of 12.5 g/dL [125 g/L]. The value must not
be performed on an earlobe stick.)
10) A 45 yr. old woman has a fasting serum glucose
concentration of 95 mg/dL (5.2 mmol/L) and a 2 hr.
postprandial glucose concentration of 105 mg/dL (5.8
mmol/L). The statement which best describes this
patient's fasting serum glucose concentration is:
a. normal; reflecting glycogen breakdown by the liver
b. normal; reflecting glycogen breakdown by skeletal
muscle
c. abnormal; indication diabetes mellitus
d. abnormal; indicating hypoglycemia - .....ANSWER
...✔✔ a (Factors contributing to PBS.)
, 4|Page
10) During the preparation of Platelet Concentrates
from whole blood, the blood should be:
a. cooled towards 6 C
b. cooled towards 20-24 C
c. warmed to 37 C
d. heated to 57 C - .....ANSWER ...✔✔ b (Platelets
are prepared and stored at 20-24 C for optimum
function.)
10) Failure to observe RBC casts in a urine specimen can
be caused by:
a. staining the specimen
b. centrifuging an unmixed specimen
c. mixing the sediment after decantation
d. examining the sediment first under low power -
.....ANSWER ...✔✔ b (centrifuging an unmixed
specimen)
10) In order for hemoglobin to combine reversibly with
oxygen, the iron must be:
a. complexed with haptoglobin
b. freely circulating in the cytoplasm
c. attached to transferrin
