(M) Horiba Medical - YUMIZEN G4000 & G1500 (question-bank) Flashcards

1
Q

3MT-7

What is the primary function of the Yumizen G400?
a. Measuring glucose levels
b. Performing blood gas analysis
c. Conducting complete blood counts (CBC)
d. Detecting infectious diseases

A

C

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2
Q

3MT-7

What does the color red indicate in the rack status in YUMIZEN G1500?
a. All tubes inside the rack is to be measured
b. All tubes are completely
c. Racks contains mixed tubes

A

A

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3
Q

3MT-7

Which of the following best describes the throughput capacity of the Yumizen G1500?
a. 10 samples per hour
b. 60 samples per hour
c. 120 samples per hour
d. Over 150 samples per hour

A

D

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4
Q

3MT-7

What is the main purpose of the mechanical method in clotting time measurement?
a. It uses a laser to detect turbidity changes in plasma.
b. It utilizes a magnetic ball that stops moving when the plasma clots.
c. It measures the time it takes for the plasma to change color.
d. It detects fibrin formation through electrical resistance.

A

B

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5
Q

3MT-7

What is one key difference between the Yumizen G400 and Yumizen G1500 analyzers?
a. The Yumizen G400 is semi-automated, while the Yumizen G1500 is fully
automated.
b. The Yumizen G400 has a higher throughput than the Yumizen G1500.
c. The Yumizen G1500 requires manual aspiration and dispensing, while the
Yumizen G400 does not.
d. The Yumizen G400 has a built-in barcode scanning system, while the Yumizen
G1500 does not.

A

A

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6
Q

3MT-7

What is the purpose of the STAT position?
a. It allows for immediate running of urgent tests, ideal for ER use.
b. It increases the stability of reagents by cooling them to lower temperatures.
c. It ensures samples are incubated at the correct temperature before testing.
d. It calibrates the machine automatically based on reagent lot numbers.

A

A

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7
Q

3MT-7

Why must APTT samples be incubated for 180 seconds before adding calcium chloride
(CaCl)?
a. To ensure the plasma reaches 37oC
b. To allow complete contact activation between plasma and reagent
c. To prevent reagent degradation
d. To mix the plasma and reagent thoroughly

A

B

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8
Q

3MT-7

If a PT control exceeds the predefined max limit, how does the Yumizen analyzer
indicate this?
a. Displays the results in green
b. Highlights the results in red
c. Prompts for duplicate testing
d. Automatically recalibrates the test

A

B

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9
Q

3MT-7

If the Yumizen G1500 encounters a jam during operation, what immediate action should
be taken?
a. Unplug the machine
b. Reload all cuvettes
c. Restart the software
d. Press the force-stop button

A

D

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10
Q

3MT-7

What are the two common techniques used in clotting tests?
a. Chemical and Electrical
b. Magnetic and Optical
c. Mechanical and Optical
d. Thermal and Chromogenic

A

C

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11
Q

3MT-7

What is the function of the cuvettes in the Yumizen G400 and G1500 analyzers?
a. To store patient information
b. To hold and process plasma samples
c. To regulate temperature in the machine
d. To generate electrical signals

A

B

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12
Q

3MT-7

What does the International Sensitivity Index (ISI) indicate in PT reagents?
a. The concentration of plasma used
b. The temperature of the reagent
c. The sensitivity of the reagent, with values closer to 1 being more sensitive
d. The total volume of the reagent in milliliters

A

C

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13
Q

3MT-7

Which of the following is a key feature of the Yumizen G400 Hemostasis Analyzer?
a. Manual loading of samples and reagents
b. Automated continuous loading of samples and cuvettes
c. Use of powdered reagents that require reconstitution
d. Limited connectivity options for data management

A

B

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14
Q

3MT-7

Which of the following safety features is included in the Yumizen G1500 Hemostasis
Analyzer?
a. Manual cap removal for samples
b. Automated continuous loading of samples and cuvettes
c. Single-use cuvettes and cap piercing
d. Limited quality control measures

A

C

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15
Q

3MT-7

What type of reagents does the Yumizen G1500 Hemostasis Analyzer use?
a. Powdered reagents that require reconstitution
b. Solid reagents that require crushing
c. Liquid and ready-to-use reagents
d. Gas-based reagents for aerosol testing

A

C

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16
Q

3MT-6

Yumizen G PT Reagent can be in three forms which are lyophilized, liquid,
and recombinant. As the ISI of these reagents get closer to 1 it becomes
less sensitive.
a. First statement is true, Second statement is false.
b. First statement is false, Second statement is true.
c. Both statements are true.
d. Both statements are false.

A

A

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17
Q

3MT-6

The following are parameters in Yumizen G1500:
a. PT
b. APTT
c. TT
d. Fib
e. AOTA

A

E

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18
Q

3MT-6

How many measuring channels does the Yumizen G1500 have?
a. 2
b. 4
c. 6
d. 8

A

D

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19
Q

3MT-6

What is/are the semi-automated machine below?
a. Yumizen G400
b. Yumizen G1500
c. Both
d. Neither

A

A

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20
Q

3MT-6

Yumizen G1500 can be loaded up to how many cuvettes?
a. 100
b. 1000
c. 10,000
d. 10

A

B

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21
Q

3MT-6

To completely mix the reagent, a vial filled with 1mL distilled water and a
normal control should be inverted. One of the reasons for obtaining a
higher limit result is that the PT Liq 4 reagent was not warmed up properly.
a. The first statement is true. The second statement is false.
b. The first statement is false. The second statement is true.
c. Both statements are true.
d. Both statements are false.

A

B

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22
Q

3MT-6

Mr. X is preparing to run a Prothrombin Time (PT) test using the Yumizen G
System. In front of him are various reagents, but he needs to ensure that he
selects the correct Yumizen G PT Reagents. Which of the following is NOT
a Yumizen G PT Reagent?
a. Lyophilized Prothrombin Reagent
b. Solid Prothrombin Reagent
c. Liquid Prothrombin Reagent
d. Recombinant Prothrombin Reagent
e. B and C

A

B

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23
Q

3MT-6

Yumizen G400 has a double rotating arm for reagents and cuvettes. Its
rotating arm is for sample concentration.
a. The first statement is true and the second statement is false
b. The first statement is false and the second statement is true
c. Both statements are true
d. Both statements are false

A

D

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24
Q

3MT-6

The following are the parameters used in Yumizen G400:
a. Coagulation Test
b. Prothrombin Test
c. Activated Partial Thyrotropin Test
d. A and B
e. A and C

A

B

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25
Q

3MT-6

What is the function of the liquid level sensor in the Yumizen G1500?
a. To detect the presence of reagents and samples
b. To measure the clotting time of the plasma
c. To scan barcodes for reagent identification
d. To warm the cuvette plates to 37°C

A

A

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26
Q

3MT-6

Which of the following is NOT a common technique used in
hemostasis/coagulation testing?
a. Mechanical clotting method
b. Optical cuvette method
c. Turbidity nephelometry method
d. Chromogenic assay method

A

C

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27
Q

3MT-6

In the Yumizan G1500, what does the rack status indicator lamp color
signify?
a. Red – All tubes completed, Green – All tubes inside the rack to be
measured, Orange – Rack contains mixed tubes
b. Red – All tubes inside the rack to be measured, Green – All tubes
completed, Orange – Rack contains mixed tubes
c. Red – All tubes completed, Green – Rack contains mixed tubes, Orange
– All tubes inside the rack to be measured
d. Red – Rack contains mixed tubes, Green – All tubes completed, Orange
– All tubes inside the rack to be measured

A

B

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28
Q

3MT-6

Stability of PT L reagent
a. 4d at 22C
b. 1d at 22C
c. 10d at 5C
d. AOTA

A

A

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29
Q

3MT-6

ALL of the choices describes Yumizen G1500, EXCEPT:
a. 44 cooled controls
b. Fully automated
c. 1,000,000 results
d. 1,000 results

A

D

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30
Q

3MT-6

What is the primary purpose of having 44 cooled controlled positions for
reagents in the Horiba Medical Yumizen?
a. To reduce reagent contamination
b. To avoid immediate expiration of reagents
c. To enhance the speed of sample analysis
d. To increase the number of samples that can be processed

A

B

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31
Q

3MT-5

How many practicing wells does Yumizen G400 have?
a. 5
b. 20
c. 4
d. 15

A

C

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32
Q

3MT-5

Which is not a parameter tested by Yumizen G1500?
a. PT/aPTT
b. AST/SGOT
c. d-dimer
d. TT

A

B

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33
Q

3MT-5

What is the storage capacity of Yumizen G1500?
a. 10,000 results
b. 100,000 results
c. 1,000,000 results
d. 10,000,000 results

A

C

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34
Q

3MT-5

In the Yumizen G1500, what are the results displayed in PT?
a. Seconds (s)
b. Percent Activity (%)
c. INR
d. All of the above
e. None of the above

A

D

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35
Q

3MT-5

If the institution is not utilizing a barcode system, what will you do to the sample ID?
a. Wait until it automatically generate IDs
b. Leave it blank
c. Input the patient ID manually
d. Request a barcode

A

C

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36
Q

3MT-5

Which test method in the Yumizen G1500 uses a nephelometry principle and scattered
light detection?
a. Coagulation
b. Immunoassay
c. Chromogenic
d. None of the above

A

A

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37
Q

3MT-5

Top of the line specific test for specific result of A1C in both percentage and millimole per
mole.
a. HBA1c Electrophoresis Test
b. Immunotyping Test
c. Urine Protein Electrophoresis
d. Carbohydrate Deficient Transferrin

A

A

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38
Q

3MT-5

This is a test for gammopathies & pathological condition screening & confirmation
(MM,MGUS,Liver Cirrhosis, Nephrotic Syndrome, Renal Failure).
a. Immunotyping test
b. Polymerase Chain Reaction
c. Urine Protein Electrophoresis
d. Serum Protein Electrophoresis

A

D

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39
Q

3MT-5

What color will the control tab show if the value is out of range?
a. Orange
b. Red
c. Yellow
d. Black

A

B

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40
Q

3MT-5

True or False. You can modify but not duplicate the settings in the Test Setup v2.7.
a. True
b. False

A

B

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41
Q

3MT-5

What is the maximum number of samples the Yumizen G1500 sensor-controlled rack
system can handle?
a. 100 samples
b. 150 samples
c. 200 samples
d. 250 samples

A

B

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42
Q

3MT-5

In Yumizen G1500, what does a red indicator lamp on the rack status indicate?
a. All tubes inside the rack have been completed
b. The rack contains mixed tubes
c. All tubes inside the rack need to be measured
d. The rack is ready for a new sample

A

C

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43
Q

3MT-5

The Yumizen G1500 has the following features, EXCEPT?
a. Comprehensive system
b. Safety single use cuvette
c. Full quality record for traceability
d. None of the above

A

D

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44
Q

3MT-5

Which of the following components align with the Yumizen G1500?
a. Up to 100 cuvettes for testing and 2.5 L of cleaner
b. Up to 2 buffer and 5 control positions
c. Positive barcode identification
d. 25 cooled controlled positions for reagents

A

C

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45
Q

3MT-5

What are the two most common techniques that are used in clotting or hemostasis?
a. Viscometry and Spectrophotometry
b. Centrifugation and Hemolysis
c. Automation and Cytometry
d. Mechanical and Optical

A

D

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46
Q

3MT-5

What is the wavelength used for the Chromogenic test method in the Yumizen G1500?
a. 640 nm
b. 570 nm
c. 405 nm
d. 700 nm

A

C

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47
Q

3MT-5

What is the maximum number of cuvettes that can be loaded in Yumizen G1500?
a. 500 cuvettes
b. 750 cuvettes
c. 1000 cuvettes
d. 1250 cuvettes

A

C

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48
Q

3MT-5

The following test methods are accommodated in the measuring channels of Yumizen
G1500, except:
a. Chromogenic
b. Coagulation
c. Spectrophotometry
d. Turbidimetry

A

C

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49
Q

3MT-5

Which of the following is displayed when you scan the plot number during the quality
control process of the Yumizen G1500?
a. Target values and Tolerance
b. Calibration curve
c. Patient test results
d. Reagent stability data

50
Q

3MT-5

In the catalog of Yumizen G1500, what does “OnBoard” refer to?
a. A reagent or consumable installed in the analyzer and ready for use
b. A function for external data storage
c. A manual calibration process
d. A remote monitoring feature

51
Q

3MT-4

Which of the following is/are FALSE about the Yumizen G1500?
A. It has double rotating arms for separate handling of reagents and samples, reducing contamination risk.
B. It displays an orange warning when results or control is out of range and requires investigation.
C. It has a stat mode used for high-volume batch testing in a hospital laboratory.
D. A&B
E. B&C

52
Q

3MT-4

If the Yumizen G1500 barcode scanner fails to read a sample, what is the best immediate
course of action?
A. Manually enter the sample ID and verify it before running the test.
B. Restart the entire machine and try scanning again.
C. Skip the sample and proceed with the next one.
D. Replace the scanner with a new one before continuing testing.

53
Q

3MT-4

Upon receiving the sample from the patient, the medical technologist observed that the plasma presented turbid properties. Further investigation concluded that the patient had enjoyed
a high-fat meal prior to the collection of samples. How would this sample affect the results of the test in optical or turbidimetric methods?
A. It will not affect the results of the clotting test
B. It will present falsely prolonged results of the clotting test
C. It will present falsely decreased results of the clotting test
D. The plasma will clot within the micropipette tube, unable to dispense due to high fat content

54
Q

3MT-4

In preparing for PT testing, a medical technologist reconstitutes the appropriate reagent using Recombinant Human Thromboplastin, and stores it at 5ºC to use in later samples. After 11 days,
the medical technologist observes a slight deviation in the results of their processed patient plasma. Based on the characteristics of the prepared reagent, what is the most likely reason for the inconsistencies in results?
A. The reagent was placed in the wrong fridge, leading to insufficient storage temperatures and reagent instability.
B. The reagent was not reconstituted using a magnetic stirrer for 30 minutes at 37ºC.
C. The medical technologist was stressed that day, leading to prolonged tourniquet
application in sample collection.
D. The reagent was stored past its recommended stability period, leading to the deviation of test results.

55
Q

3MT-4

A laboratory technician is running a coagulation test on the Yumizen G1500. The test relies on detecting scattered light to measure clot formation. Which principle is being applied?
A) Turbidimetry
B) Nephelometry
C) Photometry
D) Absorbance Spectroscopy

56
Q

3MT-4

The immunoassay test method in the Yumizen G1500 is based on the difference in light transmission. What does this suggest about how the test detects analytes?
A) It relies on light scattering from particles in suspension.
B) It measures how much light is absorbed by the sample.
C) It compares changes in transmitted light before and after reactions.
D) It detects fluorescence emissions from labeled molecules.

57
Q

3MT-4

Screening Tests performed by Yumizen G400
A) CBC
B) APTT
C) Fibrinogen
D) A&B
E) B&C

58
Q

3MT-4

What is the source of the PT lyophilised reagent?
A) Rabbit brain Thromboplastin
B) Recombinant Human Thromboplastin
C) Both
D) None

59
Q

3MT-4

Two most common techniques used for hemostasis is in Yumizen G400 is:
A. Mechanical clotting cuvette
B. Optical Cuvette
C. Both
D. None of the above

60
Q

3MT-4

In the optical method, plasma is usually clear so that the laser cannot pass through. Once clotted, it becomes turbid and stops the clotting time.
A. Both true
B. Both false
C. 1st statement is false, 2nd statement is true
D. 2nd statement is false, 1st statement is true

61
Q

3MT-4

Ready to use Yumizen G PT reagent.
A. Recombinant Human Thromboplastin
B. Rabbit Brain Thromboplastin
C. Both
D. None

62
Q

3MT-4

Sample is to be collected at what color tube?
A. Black top
B. Red Top
C. Blue top
D. A and C
E. A and B

63
Q

3MT-4

T or F. aPTT is part of special tests in Yumizen G400

64
Q

3MT-4

What is the most sensitive reagent?
A. Rabbit Brain Thromboplastin
B. Recombinant Human Thromboplastin
C. Both
D. None

65
Q

3MT-4

Which among the given rack status indicator lamp color codes is correctly paired?
A. Red: rack contains mixed tube
B. Green: all tubes inside the rack are to be measured
C. Orange: all tubes completed
D. All of the above
E. None of the above

66
Q

3MT-3

Which of the following is correctly matched?
a. Chromogenic: nephelometry
b. Coagulation: turbidimetry
c. Immunoassay: turbidimetry
d. Coagulation: photometry

67
Q

3MT-3

Arrange the following steps in using Yumizen G400
I. Incubate for 2 minutes at 37 C
II. Dispense to cuvette
III. Dispense PT reagent
IV. Collect plasma from citrated tube
V. Start counting clotting time
a. V, I, II, III, IV
b. IV, II, I, III, V
c. IV, II, I, III, V
d. V, I, III, II, IV

68
Q

3MT-3

The green color of the rack status indicator lamp in Yumizen G1500 codes for a rack containing mixed tubes.
a. True
b. False

69
Q

3MT-3

Storage capacity of Yumizen G1500
a. 1,000,000
b. 1,000
c. 100
d. 10,000,000

70
Q

3MT-3

Yumizen G1500 has a double rotating arm, one for the sample and one for the
cuvette. It can load up to 100 cuvettes for testing.
a. Only the first statement is true
b. Only the second statement is true
c. Both statements are true
d. Both statements are not true

71
Q

3MT-3

What is the International Sensitivity Index of Yumizen G PT recombinant reagent?
a. 1,10
b. 1,13
c. 1,17
d. None of the above

72
Q

3MT-3

In the mechanical clotting method, how does the Yumizen G400 detect the
endpoint of clot formation?
a. A laser detects changes in optical density
b. A magnetic ball stops moving due to increased plasma viscosity
c. The cuvette’s temperature changes due to clot formation
d. A color change occurs in the reagent

73
Q

3MT-3

What is the primary function of the two separate arms in the Yumizen G1500
analyzer?
a. To perform clotting and turbidimetric tests simultaneously
b. To independently handle sample and reagent processing, preventing
cross-contamination
c. To increase the number of tests performed per hour
d. To mix reagents more efficiently for coagulation testing

74
Q

3MT-3

How many cooled controlled positions for reagents does the Yumizen G1500
have?
a. 40
b. 42
c. 44
d. 46

75
Q

3MT-3

The Yumizen G400 is designed for high-throughput coagulation testing in large
laboratories. Both the Yumizen G400 and G1500 analyzers can perform D-dimer
testing.
a. Only the first statement is correct
b. Only the second statement is correct
c. Both statements are correct
d. Both statements are incorrect

76
Q

3MT-3

What is the main principle behind the optical method of clot detection?
a. Plasma viscosity increases, causing a change in the refractive index
b. Magnetic fields alter the light absorption of the sample
c. A laser detects changes in the plasma clarity as clotting occurs
d. Emission of fluorescence upon clot formation

77
Q

3MT-3

What is the recommended concentration of anticoagulant to be used in the sample
for the Yumizen G400?
a. 3.2 %
b. 3.8 %
c. Both
d. Neither

78
Q

3MT-3

Which type of Yumizen G PT Reagent has a stability of 10 days when stored at
5°C?
a. Rabbit Brain Thromboplastin (lyophilized)
b. Rabbit Brain Thromboplastin (liquid)
c. Recombinant Human Thromboplastin
d. A and B
e. All of the above

79
Q

3MT-3

Based on the principle of nephelometry, what is the specific wavelength utilized
by the Yumizen G1500 for measurement?
a. 405 nm
b. 640 nm
c. 570 nm
d. 410 nm

80
Q

3MT-3

What is/are the possible cause/s when PT results are inconsistent between
duplicate tests while using Yumizen G400?
a. Inadequate mixing of blood and anticoagulant
b. Hemolyzed sample
c. Delayed centrifugation
d. All of the above

81
Q

3MT-3

How many cuvettes can the Yumizen G1500 hold for testing?
a. 500 cuvettes
b. 750 cuvettes
c. 1000 cuvettes
d. None of the above

82
Q

3MT-3

What does the orange rack status indicator by the Yumizen G1500 code for?
a. All the tubes inside the rac to be measured
b. All tubes completed
c. Rack contains mixed tubes
d. None of the above

83
Q

3MT-3

Which of the following parameters can the Yumizen G1500 run?
a. Thrombin Time (TT)
b. Prothrombin Time (PT)
c. Fibrinogen (Fib)
d. All of the above

84
Q

3MT-3

Which of the following features is NOT mentioned for the Yumizen G1500
analyzer?
a. 44 cooled controlled positions for reagents
b. Positive barcode identification
c. Manual reagent loading system
d. Liquid level sensor

85
Q

3MT-3

Which of the following measurement techniques are integrated into the Yumizen
G1500? -
a. Spectrophotometry and fluorometry
b. Nephelometry and turbidimetry
c. PCR and ELISA
d. Flow cytometry and impedance

86
Q

3MT-3

What is the stability of sodium citrate plasma at room temperature for the Yumizen
G PT reagent test?
a. 6 hours
b. 12 hours
c. 24 hours
d. None of the above

87
Q

3MT-2

A clinical laboratory is considering purchasing a hemostasis analyzer to manage its high workload. Which feature of the YUMIZEN G1500 would be most beneficial in this setting?
A. The color LCD touchscreen
B. The ability to perform both mechanical
and optical clotting time checks
C. The fully automated operation and
high throughput of 240 PT/Hr
D. The use of single-use cuvettes for
safety

88
Q

3MT-2

In a hospital setting, a laboratory technician must perform an urgent D-Dimer test on the YUMIZEN G400. Knowing that the plasma sample has been stored at room temperature for 20 hours, what is the most crucial consideration before running the test?
A. Ensuring the plasma is centrifuged at
1,500-2,000g for 15 minutes
B. Checking if the D-Dimer reagent is
pre-calibrated
C. Verifying that the plasma has been
stored for no more than 24 hours to
ensure stability
D. Confirming the availability of cuvettes

89
Q

3MT-2

A laboratory is implementing a new quality control (QC) protocol for coagulation testing using the YUMIZEN G1500. How does this analyzer simplify the QC process?
A. By requiring manual input of calibration points for each reagent lot
B. By using a mechanical method to
check the clotting time
C. By automatically plotting QC data and
target values once the control lot
number is scanned
D. By using a force stop button to halt
operation if a problem occurs
immediately

90
Q

3MT-2

What is the storage capacity of the YUMIZEN G400?
A. 500 results
B. 1,000 results
C. 10,000 results
D. 100,000 results

91
Q

3MT-2

A laboratory is transitioning from a
semi-automated to a fully automated
hemostasis analyzer. Besides the increased throughput, what is the key operational difference a laboratory technician will experience when using the YUMIZEN G1500 compared to the YUMIZEN G400?
A. The need to manually warm the
reagents to 37°C
B. The elimination of manual aspiration
and dispensing of samples and
reagents
C. The requirement to use a different
type of sodium citrate plasma
D. The inability to perform special tests
like AT-III and D-Dimer

92
Q

3MT-2

A technician is loading reagents onto the
YUMIZEN G1500 and notices that one of the reagents’ expiration dates is approaching. Based on the information provided about the analyzer’s capabilities, what is the best course of action?
A. Remove the reagent and store it in the
refrigerator to extend its stability
B. Check the reagent catalog to determine the expiration date, volume, and the number of tests remaining while relying on the machine’s cooling system to maintain optimal temperature
C. Manually update the expiration date in
the system to allow for continued use
D. Use the reagent immediately, as the
onboard time is the only factor to
conside

93
Q

3MT-2

What test is not included in the YUMIZEN
G400 parameters?
A. Prothrombin Time (PT)
B. Activated Partial Thromboplastin Time
(aPTT)
C. Complete Blood Count (CBC)
D. D-Dimer

94
Q

3MT-2

There are corresponding wavelengths for
different tests or parameters in YUMIZEN
G1500. What is the wavelength required if a chromogenic test is done?
A. 570 nm
B. 430 nm
C. 640 nm
D. 405 nm

95
Q

3MT-2

Which of the following tests is a chromogenic
assay in the Yumizen analyzers?
A. Prothrombin Time (PT)
B. Activated Partial Thromboplastin Time
(aPTT)
C. Antithrombin III (AT-III)
D. D-Dimer

96
Q

3MT-2

Regarding the PT test using the YUMIZEN G PT reagent, which of the following is correct?
A. The plasma must be collected in a
tube with 3.8% sodium citrate for
optimal results.
B. The reagent is added after the plasma
is dispensed into the cuvette, and the
sample should be sodium citrate
plasma at 3.2% concentration (blue or
black cap).
C. Pre-warming the plasma sample is
unnecessary before adding the
reagent.
D. Manual calibration is required every
time before the test begins.

97
Q

3MT-2

Why are the cuvette plates pre-warmed to
37°C before testing?
A. To prevent bacterial contamination
B. To match body temperature, ensuring
optimal clotting reaction conditions
C. To activate the reagents before
sample addition
D. To enhance the sensitivity of the laser
using the optical method

98
Q

3MT-2

How does the optical method determine
clotting time in the analyzer?
A. It measures the decrease in light
absorption as the plasma clears.
B. A laser passes through clear plasma
until clotting makes it turbid, blocking
the beam.
C. It uses a colorimetric change detected
by a built-in sensor.
D. It monitors the fluorescence intensity
of the plasma during coagulation.

99
Q

3MT-2

Which statement best describes the
mechanical method used in the hemostasis analyzer?
A. A laser beam is used to measure the
change in plasma transparency.
B. A magnetic ball moves freely until
plasma clotting stops its movement.
C. The analyzer detects a change in pH
as clotting occurs.
D. The system uses infrared sensors to
measure temperature changes during
clotting.

100
Q

3MT-2

What is the primary function of the HORIBA YUMIZEN G400 and G1500 analyzers?
A. Hematology analysis
B. Coagulation testing
C. Blood gas analysis
D. Microbiology testing

101
Q

3MT-2

Which of the following is true regarding the hemostasis analyzer?
A. The optical method is the only way to
determine the clotting time.
B. The cuvette plates should be
pre-warmed first at 37°C.
C. The reagent will be dispensed first,
and then the plasma will be added to
start the clotting time.
D. In the optical method, the laser will be
blocked if the plasma is not yet
clotted.

102
Q

3MT-1

  1. The following are true for Yumizen G1500:
    a. Without the storage capacity of 1,000,000 results
    b. Has a throughput of 240 PT/hour
    c. Has up to 8 measuring channels with 4 wavelength combination
    d. Semi-automated, high capacity coagulation analyzer
103
Q

3MT-1

2 . Which of the following is/are correct about the rack status indicator lamp color codes of
YUMIZEN G1500?
a. Green: All tubes inside the rack to be measured
b. Orange: Rack contains mixed tubes
c. Red: All tubes completed
d. None of the above

104
Q

3MT-1

3 . Which of the following is/are included in the clotting test parameter with a 640 nm of YUMIZEN G1500?
a. D-Dimer
b. AT-III
c. Prothrombin Time (PT)
d. All of the following

105
Q

3MT-1

4 . The 3 different YUMIZEN G400 PT reagents include the following, except:
a. PT lyophilised
b. PT Liquid
c. PT Reconstitute
d. None of the above

106
Q

3MT-1

5 . The Yumizen G400 is what type of hemostasis analyzer?
a. Semi-automated hemostasis analyzer
b. Automated hemostasis analyzer
c. Manual
d. None of the above

107
Q

3MT-1

6 . What is the primary purpose of the Horiba Medical Yumizen G400 and G1500
analyzers?
a. Hematology analysis for CBC
b. Coagulation and hemostasis testing
c. Urinalysis for detecting kidney function markers
d. Blood gas analysis for assessing pH and O2 levels

108
Q

3MT-1

7 . Which of the following best describes the reagent management system in the Yumizen G1500?
a. It requires manual reagent loading after every test
b. It has a closed-tube reagent system with onboard cooling for enhanced stability
c. It lacks reagent barcode scanning, requiring manual data entry
d. It can only use reagents from third-party manufacturers

109
Q

3MT-1

8 . What is the primary function of the HORIBA Medical Yumizen G400 & G1500 analyzers?
a. Blood glucose monitoring.
b. Hemostasis testing (coagulation analysis)
c. Hematology analysis
d. Urinalysis

110
Q

3MT-1

9 . Which of the following statements is TRUE regarding the Horiba Medical Yumizen G400 and G1500 analyzers?
a. The Yumizen G400 is a high-throughput, fully automated hemostasis analyzer designed for large laboratories.
b. The Yumizen G1500 offers a smaller footprint and is intended for point-of-care
testing only.
c. Both Yumizen G400 and G1500 are designed for coagulation testing, with the
G1500 being a high-throughput system for large laboratories.
d. The Yumizen G400 is a compact, benchtop coagulation analyzer, while the
Yumizen G1500 is a fully automated hemostasis analyzer for mid-to-large
laboratories

111
Q

3MT-1

10 . Which parameter is NOT typically measured by the Yumizen G400 and G1500 analyzers?
a. Prothrombin Time (PT)
b. Activated Partial Thromboplastin Time (APTT)
c. D-Dimer
d. Complete Blood Count (CBC)

112
Q

3MT-1

11 . What type of sample does the Yumizen G400 & G1500 analyze?
a. Urine
b. Whole blood
c. Plasma
d. Saliva

113
Q

3MT-1

12 . Storage Capacity of Yumizen G1500
a. 1.500.000
b. 1.500
c. 1.000.000
d. 1.000

114
Q

3MT-1

13 . Color indicator if the rack contains mixed tube
a. Yellow
b. Red
c. Orange
d. None of the above

115
Q

3MT-1

14 . Yumizen G1500 is a semi-automated, high-capacity coagulation analyzer to manage the diagnostic and monitoring requirements of clinical laboratories with mid to high workload. It’s sampling volume is 5-200ul.
a. Both statements are true
b. Only the second statement is true
c. Both statements are false
d. Only the first statement is true

116
Q

3MT-1

15 . What is the primary method of measurement used by Yumizen G400 in detecting analytes?
a. Spectrophotometry
b. Fluorometry
c. Nephelometry
d. Colorimetry

117
Q

3MT-1

1 6. Which test can be done using the Yumizen G400?
a. Liver Function Test
b. CBC
c. D-Dimer Assay
d. None of the above

118
Q

3MT-1

17 . Which serum protein fraction is often decreased in nephrotic syndrome?
a. Alpha-2 globulins
b. Albumin
c. Beta-globulins
d. Gamma-globulins

119
Q

3MT-1

18 . All of the following statements are true about common techniques for clotting and hemostasis EXCEPT
a. In mechanical clotting method, we begin to time it after the start of reagent
b. In optical method, the plasma is usually clear thus the laser can easily pass
through the plasma
c. Cuvette are pre-warmed at 37oC to match the body temperature
d. The common techniques used for clotting and hemostasis is mechanical and optical method

120
Q

3MT-1

19 . Which parameter is used in Yumizen G1500 only
a. D-Dimer
b. Factors: III, V, VII, X, IX, XI, XII
c. Factors: II, V, VII, X, VIII, IX, XI, XII
d. AT III