Coagpia™ Fbg

This product marketed by SEKISUI MEDICAL CO., LTD., Tokyo, Japan is manufactured subject to our
supervision as stipulated in the Pharmaceutical Affairs Law of Japan and is allowed to be sold in Japan. For details,
please contact us or your local distributors.
plasma sample, the time taken for fibrin to form
from blood fibrinogen (coagulation time: sec) is
measured. Since coagulation time is dependent on
the fibrinogen concentration in the test sample,
fibrinogen concentration (mg/dL) is determined by
using a calibration curve prepared from plasma
containing known fibrinogen concentrations.
Fibrinogen Assay Kit
Coagpia™ Fbg
General Precautions
1. This product is for in vitro diagnostic use only,
and must not be used for any other purposes.
2. Clinicians should make a comprehensive clinical
decision based on assay results in conjunction
with clinical symptoms and other examination
3. Influence on assay values resulting from drug
administration is described in Precautions for
Use in the package insert for the relevant drugs.
In particular, carefully read the section on
influence on clinical test results.
4. This product should be used only as directed.
Reliability of values cannot be guaranteed if this
product is used for purposes or tested by
methods other than those stated.
5. Thrombin reagent contains ingredients derived
from human blood tested negative for
HIV-antibody, HCV-antibody and HBsAg.
However, please handle this product as if
potentially infectious.
6. If the reagents come in contact with the eyes or
mouth, rinse thoroughly with water as first aid,
and seek medical treatment if necessary.
7. Read the user’s manual of your automated
analyzer prior to using this kit. Parameters for
different automated analysers are available upon
8. Perform a quality control test prior to assay to
ensure accuracy.
Description (Kit Components)
Sample Dilution
HEPES Buffer Solution
Thrombin Reagent
Procedural Precautions
1. Sample Collection and Storage
1) Samples
Plasma (citrated plasma) can be used. Do not
use plasma containing anticoagulants other than
sodium citrate.
2) Sample Preparation
Promptly mix nine parts of blood sample with
one part of 3.2% sodium citrate. Centrifuge in a
refrigerated centrifuge at 1500G for 15 minutes
to separate plasma.2) Transfer the plasma into a
separate plastic test tube and refrigerate or store
on ice.
3) Sample Storage
i) Start the assay promptly after blood
collection. If the sample has been stored at
2-10°C, perform assay within 3 days, and if
it has been stored at -28°C or below, perform
assay within 4 days.4)
Bring samples to room temperature
(15-30C) before use.
ii) To prevent denaturing of fibrinogen, thaw
frozen samples quickly at 37°C. Avoid
repeated freezing and thawing, which can
produce inaccurate results.
2. Interfering Substances
1) Assay results will not be affected by free
bilirubin (up to 25 mg/dL), conjugate bilirubin
(up to 25 mg/dL), hemoglobin (up to 500
mg/dL), formazin turbidity (up to 3000 units),
intralipose (up to 4%) and heparin sodium (up
to 8 U/mL).
3. Other Precautions
1) Use Calibrator for Coagpia™ (SEKISUI
MEDICAL CO., LTD.) as the calibration
2) When the concentration of a sample exceeds
the measurement range, dilute the plasma 20
fold with sample dilution solution and repeat
the measurement.
3) Other dilution solutions can be used in place of
the sample dilution solution. Please contact
Intended Use
For the measurement of fibrinogen in plasma
Fibrinogen is an acute phase reactive protein that is
synthesized by hepatic parenchymal cells. Fibrinogen
plasma concentrations increase due to infectious
diseases, malignant tumours and thrombotic diseases
in the acute phase and decrease due to hepatic
parenchymal lesions (due to decreased production),
disseminated intravascular coagulation (DIC)
syndrome (due to progressive fibrinogen
consumption) and other conditions.1) Fibrinogen
measurements are used to understand the pathological
condition and to supplement the diagnosis of these
Assay Procedure
1. Preparation
1) Sample Dilution Solution: Ready-to-use
2) Thrombin Reagent: Ready-to-use
2. Assay Method
This product is compatible with various types of
automated analyzers. Below is a general example
of the assay procedure.
Assay Principle
1. Assay Principle
Coagpia™ Fbg is a reagent that determines
fibrinogen concentrations in plasma based on the
principle of the thrombin time method. After a
certain amount of thrombin is added to a diluted
Revised: (Jan) 2009 (5th edition)
This product marketed by SEKISUI MEDICAL CO., LTD., Tokyo, Japan is manufactured subject to our
supervision as stipulated in the Pharmaceutical Affairs Law of Japan and is allowed to be sold in Japan. For details,
please contact us or your local distributors.
(Preparation of Samples)
10 L
Sample dilution
90 L
100 L
Reference Method: Coagulation time method
(MHLW approved IVD)
Standard Calibration Material
NIBSC standard material (98/612)
Precautions and Warnings
1. Handling Precautions
(Measurement of Coagulation Time)
1) All samples used in the test should be handled
as if potentially infectious for HIV, HBV and
HCV. To prevent infection, use disposable
100 L +
Coagulation time
gloves and avoid mouth pipetting during the
50 L
Calibration material: Calibrator for Coagpia™ (value
2) ProClin300, which possesses skin-irritative
assigned by SEKISUI MEDICAL CO., LTD.)
potential, has been added as an antiseptic agent
3. Calculation of Fibrinogen Concentration
in both the sample dilution solution and the
thrombin reagent. Therefore, if the reagents
1) Use sample dilution solution to perform 5, 10
come in contact with skin or clothes, rinse
and 20 fold dilutions of Coagpia™ calibrator.
immediately with water, and consult a doctor if
2) Add thrombin reagent to each of the above
skin irritation develops.
diluted specimens and measure coagulation
2. Precautions for Use
1) This product should be stored as directed.
3) Plot fibrinogen concentrations (mg/dL) on the
Avoid freezing. Freezing can cause
x-axis and coagulation times on the y-axis to
deterioration of the reagents, which can
prepare a calibration curve. 5, 10 and 20-fold
produce inaccurate results.
diluted fibrinogen concentration values are
2) Do not use expired reagents. Reliable assay
double, equal to, and half the indicated values,
values cannot be obtained if expired reagents
are used.
4) Dilute the plasma sample 10 times with sample
3) Do not replenish the reagents.
dilution solution. Calculate the concentration of
4) Do not perform the assay under direct sunlight.
fibrinogen (mg/dL) using a pre-prepared
3. Precautions for Disposal
calibration curve based on the coagulation time
1) Before disposal, used samples and containers
measurements that were performed after
must be soaked in sodium hypochlorite solution
thrombin reagent was added.
of concentration greater than 0.1% for more
Some measuring instruments (blood coagulation
than an hour or autoclaved at 121C for 20
analyzers) may automatically carry out steps 1) - 4)
to calculate the fibrinogen concentration (mg/dL).
2) To prevent infections from spilled samples or
4. Precautions for Use
sample-contained solutions, wipe the spill area
After completing the assay, seal the bottle and
thoroughly with sodium hypochlorite solutions
store at 2-10°C.
at concentration of greater than 0.1%.
reagents and samples should be disposed as
Assessment of Results
waste or industrial waste in accordance
1. Reference Interval
disposal regulations.
200-400 mg/dL
4) The reagents should be disposed in
consideration of water pollution control
regulations or related regulations.
1. Sensitivity
4. Other Precautions
Coagulation Time:
Do not use the containers for any other purposes.
Normal plasma diluted 10 fold per fibrinogen
300 mg/dL: 7-13 seconds
Storage and Shelf Life
Normal plasma diluted 20 fold per fibrinogen
1. Storage temperature: 2-10C
150 mg/dL: 15-24 seconds
2. Shelf life: 2 years from the date of manufacture
2. Accuracy
(The expiration date is printed on the outside of
80-120% of the expected assay value
the package.)
3. Within-run Reproducibility
Coefficient of variation  10%
(Test methods used for 1.-3. are in-house methods.)
4. Measurement Range (on Coaglex 800 blood
coagulation analyzer)4)
40-800 mg/dL
N = 87, r = 0.990, y = 1.03x + 0.68
Revised: (Jan) 2009 (5th edition)
This product marketed by SEKISUI MEDICAL CO., LTD., Tokyo, Japan is manufactured subject to our
supervision as stipulated in the Pharmaceutical Affairs Law of Japan and is allowed to be sold in Japan. For details,
please contact us or your local distributors.
Package Contents
Sample Dilution
Thrombin Reagent
10 mL x 10
3 mL x 10
1) The Japanese Society for Laboratory Hematology:
Standard Laboratory Hematology, p136-139
Ishiyaku Pub, Inc. (2003)
2) The Japanese Society for Laboratory Hematology:
Standard Laboratory Hematology, p75-78
Ishiyaku Pub, Inc. (2003)
3) Kanai, Masamitsu: Clinical examination method
summary, p 419, Kanehara Co., Ltd. (2005)
4) SEKISUI MEDICAL CO., LTD. In-house data
Marketing Authorization Holder
13-5, Nihonbashi 3-chome, Chuo-ku, Tokyo, Japan
"Coagpia" is a trademark owned by SEKISUI
MEDICAL CO.,LTD. JAPAN, and is registered in
Japan and/or other countries.
Revised: (Jan) 2009 (5th edition)
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