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MLT PRACTICE EXAM QUESTIONS AND ANSWERS
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MLT PRACTICE EXAM QUESTIONS AND ANSWERS
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MLT PRACTICE EXAM QUESTIONS AND ANSWERSTo correctly report a colony count in a urine culture plated using a calibrated 0.001 mL
loop, the observed colony count must be multiplied by which of the following?
a. 1
b. 100
c. 1000
d. 2000 - Answers -c. 1000
Examination of peripheral blood smear revealed 12 nucleated erythrocytes per 100
leukocytes. Which histogram observation correlates with this finding?
a. Failure of the granulocyte population to return to baseline on the leukocyte histogram
b. Shift to the left of the erythrocyte population on the erythrocyte histogram
c. Failure of the lymphocyte population to begin at baseline on the leukocyte histogram
d. Shift to the right of the platelet population on the platelet histogram - Answers -c.
Failure of the lymphocyte population to begin at baseline on the leukocyte histogram
A specimen for anaerobic culture is place in an anaerobic holding jar in order to:
a. Minimize exposure to oxygen
b. Maximize spore formation
c. Increase the growth rate of the sample
d. Decrease the exposure to UV light - Answers -a. Minimize the exposure to oxygen
A clinical laboratory technician wishes to examine an unstained, wet preparation of cells
or organism prior to dehydration. Which of the following types of microscopes would be
best to use in this scenario?
a. Phase Contrast
b. Fluorescence
c. Brightfield
d. Electron - Answers -a. Phase Contrast
An organism gives the following reactions: TSI and KIA alkaline slant over an acid butt,
H2S positive ferments glucose. Based on these reactions, what is the most likely
identification of the organism?
a. Proteus mirabilis
b. Esherichia coli
c. Pseudomonas aeruginosa
d. Salmonella sp. - Answers -a. Proteus mirabilis
A pregnant woman who has active syphillis and a RPR of 1:32 is being treated with
penicillin. She gives birth to a baby boy. When the cord blood from the baby is tested,
the RPR is 1:2. Based on the above data, the most likely interpretation is:
a. The baby has congenital syphillis
b. The baby does not have syphillis. A titer this low represents passive acquisition of the
antibody from the mother
c. The baby does not have syphillis. A titer this low represents a biological false positive
, d. No definitive conclusion can be made from this data. Further testing is necessary -
Answers -D.No definitive conclusion can be made from this data. Further testing is
necessary
The device used for capturing data from instruments and processing them without delay
is:
a. A modem
b. An interface
c. A CPU
d. A printer - Answers -b.an interface
By attending an approved continuing-education program of one-hour in length, and
individual can receive credit for:
a. 10.0 CEU(continuing education units)
b. 1.0 CEU
c. 0.1 CEU
d. 0.01 CEU - Answers -C.0.1 CEU
While running coagulation tests on a photo-optical instrument, the clinical laboratory
technician observes that the PT results for a bath of patient samples are consistently
prolonged, but the APTT results for those patient samples are within normal limits. The
clinical laboratory technician should check the:
a. Reagent delivery pipet
b. Level of thromboplastin in the reagent well
c. Patient samples for hemolysis
d. Instrument's light source - Answers -b.level of thromboplastin in the reagent well
A clean 1.0 L volumetric flask is filled to the calibration line with distilled water. To the
water in the flask 9.0g of NaCL is added and mixed by inversion. This method of
preparation will result in a solution whose concentration is:
a. 0.9g/dL
b. 9.0g/dL
c. Slightly less than 0.9g/dL
d. Slightly greater than 0.9g/dL - Answers -c.slightly less than 0.9g/dL
Water which is boiled and the resulting steam cooled characterize which type of water
purification?
a. Deionization
b. Distillation
c. Filtration
d. Reverse osmosis - Answers -b.distillation
In the differential standing technique (Gram's technique) for bacteria, the counter stain
is:
a. Iodine
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