EP1080372A1 - Procede et appareil de surveillance et de detection generales d'informations cliniques aberrantes insoup onnees - Google Patents

Procede et appareil de surveillance et de detection generales d'informations cliniques aberrantes insoup onnees

Info

Publication number
EP1080372A1
EP1080372A1 EP99918224A EP99918224A EP1080372A1 EP 1080372 A1 EP1080372 A1 EP 1080372A1 EP 99918224 A EP99918224 A EP 99918224A EP 99918224 A EP99918224 A EP 99918224A EP 1080372 A1 EP1080372 A1 EP 1080372A1
Authority
EP
European Patent Office
Prior art keywords
test
group
tests
results
analyzer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99918224A
Other languages
German (de)
English (en)
Inventor
Stephen E. Kellett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Bayer Corp
Original Assignee
Bayer AG
Bayer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG, Bayer Corp filed Critical Bayer AG
Publication of EP1080372A1 publication Critical patent/EP1080372A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00594—Quality control, including calibration or testing of components of the analyser
    • G01N35/00603—Reinspection of samples

Definitions

  • the method and apparatus includes the performance of a single test or the performance of continuous testing and monitoring of a patient.
  • the method and apparatus are further useful as a quality control measurement tool.
  • Fig. 1 is a flow chart of the method of the present invention
  • Fig. 2 is a flow chart of an additional embodiment of the method of the present invention
  • Fig. 3 is a print out of a first display screen showing the test selection portion of a particular embodiment of the present invention
  • Fig. 4 is a print out of a second display screen directing that aspiration of the sample be started
  • Fig. 5 is a print out of a third display screen showing the aspiration time for taking the sample
  • Fig. 6 is a print out of a fourth display screen directing that the aspiration of the sample be halted
  • Fig. 7 is a print out of a fifth display screen showing the entry of patient/sample data
  • Fig. 8 is a print out of a sixth display screen showing the results of the testing as the testing of the sample is being run;
  • Fig. 9 is a print out of a seventh display screen showing that an alarm limit has been exceeded and asking whether this information should be displayed;
  • Fig. 10 is a print out of an eighth display screen showing the results being displayed including the results for the unselected test
  • Fig. 11 is a print out of a ninth display screen showing the test results for all the selected tests.
  • Fig. 12 is a flow chart of a quality control method of the present invention.
  • An analyzer or other sample testing device can provide a plurality of tests of a sample, for example a blood analyzer can provide tests for the tHb, pO2, pH etc., of a blood sample taken from a patient.
  • a blood analyzer can provide tests for the tHb, pO2, pH etc., of a blood sample taken from a patient.
  • a physician while require only a subset of the available tests. While only a subset of tests are determined to be of particular relevance by the physician, there may be other tests which would show a condition not originally thought to be existing in the sample being tested.
  • the presently disclosed method and apparatus allows for a physician to select the tests thought to be most relevant and further provides the ability to monitor the output of other unselected tests should the results of these unselected tests meet a predetermined threshold, thus indicating an aberrant condition which typically requires immediate attention.
  • a flow chart of a first embodiment 1 of the presently disclosed method is shown.
  • the presently disclosed method is useful for the detection of unsuspected carbon monoxide poisoning caused by an improperly functioning heating system or other combustion source.
  • a patient presents himself to an emergency room of a hospital complaining of fatigue and headaches.
  • These symptoms in this instance are rather non-specific and are associated with a wide variety of disorders.
  • alarm thresholds are defined for at least one of the plurality of available tests the analyzer can perform.
  • the defined alarm thresholds when exceeded, indicate that that an aberrant condition exists which requires immediate attention.
  • a selection is made by the physician as to which test results are to be reported. These test results will be reported to the physician irregardless of whether the selected tests have had alarm thresholds defined or if these alarm thresholds have been exceeded.
  • the attending physician in this example may order a general blood screen in an attempt to identify the underlying cause of the symptoms experienced by the patient. The blood sample taken from the patient is then tested on the analyzer utilizing the method of the present invention.
  • step 120 recites that the selected tests are run on the sample, and the tests which were not selected but have had threshold limits defined are also run on the sample, although these tests which were not selected but have had threshold limits defined are run in the background.
  • the physician has not elected to test for hemoglobin fractions as part of the testing operations selected, however an alarm threshold has been defined earlier for the different hemoglobin parameters.
  • This alarm threshold may be a pre-established generic threshold, or a threshold specifically defined by the physician.
  • a determination is made as to whether any alarm thresholds of the unselected tests have been exceeded by the measurement of the sample.
  • the test results for the selected tests and for the tests that have had their alarm thresholds exceeded are reported to the physician, even though these tests were not originally selected by the physician, as shown in step 140. If no alarm thresholds were exceeded on the unselected tests, then the results of the selected tests are reported, as shown in step 150. After the reporting of the selected tests results and any tests results that were not selected but exceeded their predetermined threshold, the testing of the sample is finished, as shown in step 160. In this instance the alarm threshold for carboxyhemoglobin level has been exceeded and is reported to the physician who is alerted to what could be or may be a life threatening situation if left undiscovered.
  • PEEP Positive End Expiratory Pressure
  • a second embodiment 200 of the presently disclosed invention is shown generally in Fig. 2 and more particularly in Figs. 3-11.
  • the method 200 is similar to the method 100 of Fig. 1 but allows the physician to consciously elect not to view parameters for which the results were not originally desired, but which the alarm threshold limit is exceeded. This may be useful in certain clinical procedures where the value is expected to be abnormal, such as in the period following administration of cardioplegic solutions.
  • alarm thresholds are defined for at least one of the plurality of available tests the analyzer can perform. The alarm thresholds, when exceeded, indicate that that an aberrant condition exists which requires immediate attention.
  • the next step 110' shows that a selection is made by the physician as to which test results are to be reported.
  • Shown in Fig. 3 is a printout of a first display screen 400. This screen shows that a sample is going to be tested. The screen further shows that the testing of the sample for pH, pC0 2 , p0 2 , Na + , K + , Ca ++ , GLU and HCT are selected. The testing for the level of Cl " has not been selected. An alarm limit has previously been defined for a level of Cl " .
  • Fig. 4 shows a second display screen 410 which directs the clinician to insert the syringe containing the sample material into the analyzer to begin aspiration of the sample.
  • Fig. 3 shows a printout of a first display screen 400. This screen shows that a sample is going to be tested. The screen further shows that the testing of the sample for pH, pC0 2 , p0 2 , Na + , K + , Ca ++ , GLU
  • FIG. 5 shows the display screen 420 where the aspiration of the sample material from the syringe is timed.
  • Fig. 6 show the display screen 430 which directs the clinician to remove the syringe from the analyzer thereby ending the aspiration of the sample.
  • Fig. 7 shows the display screen 440 where the patient and sample information is entered. The following step, step 120', recites that the selected tests are run on the sample, and that the tests which were not selected but have had threshold limits assigned are also run on the sample.
  • Fig. 8 shows the display screen 450 which shows the testing being performed on the sample. The ongoing results for the testing of Cl " level are not shown since that test was not selected, however the testing for Cl " level is actually occurring in the background.
  • a display screen 460 is shown. This screen indicates that a safety alarm limit (also known as SAFETY NET TM) has been exceeded and questions the clinician as to whether this information, even though originally not selected, should be displayed to the clinician. If the clinician desires to see the unselected test results than the YES box is selected; if the clinician does not desire to see the unselected test results the NO box is selected.
  • a safety alarm limit also known as SAFETY NET TM
  • step 140' the results of the selected tests and the results of the unselected tests that exceeded the alarm threshold limit are reported.
  • Selection of the YES box shows the test results as shown in Fig. 10.
  • the results of the Cl " testing are shown along with the other selected tests results.
  • the selected test results are reported without reporting any of the unselected tests results.
  • Selection of the NO box shows the results as shown in Fig. 11.
  • the display screen 480 shows only the test results for the selected tests and does not show the results for the unselected test even though the alarm limit for that test had been exceeded.
  • the testing is then finished, as shown in step 160'.
  • the present invention may additionally be utilized as part of a quality control measurement system.
  • a set of counters are provided which keep track of the number of times different tests which were unselected by the physician as part of the diagnosis of a patient's condition had their alarm threshold exceeded. If a high rate of this situation occurs for a particular physician, then the physician can be notified and a determination made as to why this is occurring. For example if a certain physician is constantly having results reported which are not requested, it may indicate that the physician needs to be aware of checking for a broader range of causes related to certain symptoms or that the physician is lacking in proper clinical knowledge with respect to testing for certain conditions given a particular set of symptoms.
  • an overall count can be maintained and observed on a timely basis to ensure that proper testing is being requested at appropriate times by comparing results month to month. If too small a number of thresholds alarm are being reported, than the doctors may be ordering too many tests. On the other hand, if a larger than usual number occurs, then the physician may need to prescribe more tests. As such, a level of quality control can be monitored and maintained.
  • the counters utilized for quality control are initialized as shown in step 310.
  • alarm thresholds are defined for at least one of the plurality of available tests the analyzer can perform. The defined alarm thresholds, when exceeded, indicate that that an aberrant condition exists which requires immediate attention.
  • a selection is made by the physician as to which test results are to be reported. These test results will be reported to the physician irregardless of whether the selected tests have had alarm thresholds defined or if these alarm thresholds have been exceeded.
  • step 120 recites that the selected tests are run on the sample, and the tests which were not selected but have had threshold limits defined are also run on the sample.
  • the selected tests are run on the sample in the foreground, while the unselected tests which include a respective predefined threshold limit are executed in the background.
  • An automated analyzer is typically utilized to perform testing of a sample to determine characteristics of the sample.
  • the automated analyzer is under control of a programmable processor which is coupled to a memory and to a user interface.
  • the analyzer is capable of performing a plurality of tests on the sample. A user of the analyzer selects a first group of tests from the available tests to be run on the sample. Previous to this, certain ones of the plurality of tests may have had threshold limits defined. The selected tests are run on the sample under the control of the analyzer.
  • the analyzer While the selected tests are being run in the foreground, the analyzer is additionally running the unselected tests which have had threshold limits defined in the background.
  • the user interface does not make the user aware that the unselected tests which have had threshold limits exceeded are in fact being run.
  • the analyzer When the analyzer has completed the testing of the sample, the user is provided with the tests results via the user interface. Additionally, the analyzer reports via the user interface the results of any of the unselected tests which were run in the background if the respective threshold limit was exceeded.
  • the analyzer instead of reporting the results of any of the unselected tests which had an alarm threshold exceeded for a respective test, questions the user as to whether the user desires to view the results of any unselected tests which have had an alarm threshold exceeded. The user responds either yes or no via the user interface. If the user indicated that the results were desired, the analyzer provides the results to the user. If the results are not desired, the analyzer then does not report the unselected test results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant d'effectuer une surveillance et une détection générales d'informations cliniques aberrantes insoupçonnées. L'invention permet de procéder à une sélection pour recevoir des résultats de tests d'un patient, résultats provenant d'un ou de plusieurs tests sélectionnés parmi plusieurs tests et de recevoir des résultats de tests qui, à l'origine, n'étaient pas voulus, mais seulement à condition que les résultats de tests non voulus correspondent à une valeur seuil prédéterminée, indiquant ainsi l'existence de troubles aberrants qui doivent être traités chez le patient. Ainsi, la quantité d'informations extérieures devant être prises en compte par le médecin est réduite, ce qui permet d'économiser du temps et de l'argent qui aurait été dépensé inutilement. Le procédé et l'appareil s'appliquent à un seul test ou à un test en continu d'un patient. Le procédé et l'appareil servent en outre d'instrument de mesure de contrôle de qualité.
EP99918224A 1998-05-21 1999-05-19 Procede et appareil de surveillance et de detection generales d'informations cliniques aberrantes insoup onnees Withdrawn EP1080372A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8259898A 1998-05-21 1998-05-21
US82598 1998-05-21
PCT/IB1999/000900 WO1999060410A1 (fr) 1998-05-21 1999-05-19 Procede et appareil de surveillance et de detection generales d'informations cliniques aberrantes insoupçonnees

Publications (1)

Publication Number Publication Date
EP1080372A1 true EP1080372A1 (fr) 2001-03-07

Family

ID=22172179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99918224A Withdrawn EP1080372A1 (fr) 1998-05-21 1999-05-19 Procede et appareil de surveillance et de detection generales d'informations cliniques aberrantes insoup onnees

Country Status (5)

Country Link
EP (1) EP1080372A1 (fr)
JP (1) JP2002520684A (fr)
AU (1) AU3623799A (fr)
CA (1) CA2332773A1 (fr)
WO (1) WO1999060410A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136958A (en) * 1979-04-14 1980-10-25 Olympus Optical Co Ltd Automatic analyzer
JPH01100454A (ja) * 1987-09-18 1989-04-18 E I Du Pont De Nemours & Co 試験結果報告を制御する免疫スイッチ
US5366896A (en) * 1991-07-30 1994-11-22 University Of Virginia Alumni Patents Foundation Robotically operated laboratory system
US5749907A (en) * 1997-02-18 1998-05-12 Pacesetter, Inc. System and method for identifying and displaying medical data which violate programmable alarm conditions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9960410A1 *

Also Published As

Publication number Publication date
CA2332773A1 (fr) 1999-11-25
JP2002520684A (ja) 2002-07-09
AU3623799A (en) 1999-12-06
WO1999060410A1 (fr) 1999-11-25

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