Intravenous medication harm index system

• US 7,657,443 B2
• Filed: 12/19/2003
• Issued: 02/02/2010
• Est. Priority Date: 12/19/2003
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton Dickinson & Co)
• Original Assignee: Carefusion 303 Incorporated (Becton Dickinson & Co)
• Inventors: Crass, Richard E., Vanderveen, Timothy W.
• Primary Examiner(s): Gilligan; C. Luke
• Assistant Examiner(s): Sorey; Robert
• Application Number:
  US10/741,042
• Publication Number:
  US 20050224083A1
• Time in Patent Office: 2,237 Days
• Field of Search: 705/2
• US Class Current: 705/2
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment
• CPC Class Codes: G16H 70/40 relating to drugs, e.g. their side effects or intended usage

Abstract

A system and method for assessing the severity of medication errors associated with intravenous administration is provided. A harm index database includes harm index values for various parameters of medication administration. A medication administration device may access this database and assess the overall harm index for particular errors in order to provide appropriate alerts based on the severity of the error. Further, assessment of the harm index value may be used retrospectively to provide reports of event logs that include an overall harm index value associated with each alert.

Claims

1. A method for assessing potential for harm of detected medication errors associated with delivering medication to a patient, comprising the steps of:

receiving, via a user interface at a patient care device, entered medication administration parameter values that program the patient care device to deliver medication to a patient;

wherein the patient care device further includes a memory in which is stored medication administration guidelines representing acceptable values for the medication administration parameters;

comparing, via a processor at the patient care device, the entered medication administration parameter values to the acceptable medication administration parameter values stored in the memory, and further indicating medication errors whenever discrepancies between the values are detected;

storing, via the processor, a log of the detected medication errors in the memory;

wherein the memory further stores a harm index database including quantifiable harm index values representing a potential for harm associated with a plurality of potential medication errors;

wherein the harm index database further includes a plurality of harm index parameters relating to patient treatment, each harm index parameter being associated with the quantifiable harm index values;

wherein the harm index parameters further include an overdose parameter which further includes a drug type parameter associated with a dosage parameter, the drug type parameter indicates a potential for causing harm when the drug is incorrectly prescribed, and the dosage parameter indicates a potential for causing harm based on the magnitude of the drug dosage;

wherein the harm index parameters further include a level of care parameter which defines a risk for a given level of care;

wherein the harm index parameters further include a detectability parameter which defines the likelihood that the medication error would have been detected by a care-giver before a harmful adverse drug event occurs;

determining, via the processor, a quantifiable harm index value for each detected medication error stored in the log, and a quantifiable overall harm index value indicating the aggregate severity of the averted medication errors stored in the log based on combining the harm index values associated with the corresponding medication errors stored in the harm index database; and

displaying, via a display at the patient care device, a report of the overall harm index value to the device user before potentially harmful medication delivery.

2. The method of claim 1, further comprising the steps of:

generating, via the display, an alert based on the severity of the overall harm index value by varying the loudness or pattern of an audible alarm or by varying a visual alarm.

3. The method of claim 2, wherein, based on the criticality of the error, the alert is provided either at the point of care, or at the point of care and a remote location.

4. The method of claim 1, wherein the drug type parameter is divided into categories that indicate low risk, medium risk, and high risk, and the dosage parameter is divided into categories indicate low risk, moderate risk, and high risk, and the cross association of the categories of the respective parameters yields a quantifiable harm index value.

5. The method of claim 1, wherein patient-specific information including laboratory results and age are included as factors integrated into the level or care parameter.

6. The method of claim 1, wherein the detectability parameter is divided into two categories, each associated with a harm index value, that indicate error detection would have either been likely or unlikely.

7. The method of claim 1, wherein the overall harm index value ranges from 3.5 to 14, with the low end of the range indicating a minimal harm potential, the middle of the range indicating a moderate harm potential, and the high end of the rage indicating a severe harm potential.

8. The method of claim 1, further comprising the steps of:

printing, via a printer operatively connected to the patient care device, a report including the overall harm index value.

9. A system for assessing potential for harm of detected medication errors associated with delivering medication to a patient, comprising:

a patient care device for delivering medication to a patient;

the patient care device including a user interface in which is entered medication administration parameter values that program the patient care device to deliver medication to a patient;

wherein the patient care device further includes a memory in which is stored medication administration guidelines representing acceptable values for the medication administration parameters;

the patient care device including a processor configured to compare the entered medication administration parameter values to the acceptable medication administration parameter values stored in the memory, and indicate medication errors whenever discrepancies between the values are detected;

the processor is further configured to store in the memory a log of the detected medication errors;

wherein the memory further stores a harm index database including quantifiable harm index values representing a potential for harm associated with a plurality of potential medication errors;

wherein the harm index database further includes a plurality of harm index parameters relating to patient treatment, each harm index parameter being associated with the quantifiable harm index values;

wherein the harm index parameters further include an overdose parameter which further includes a drug type parameter associated with a dosage parameter, the drug type parameter indicates a potential for causing harm when the drug is incorrectly prescribed, and the dosage parameter indicates a potential for causing harm based on the magnitude of the drug dosage;

wherein the harm index parameters further include a level of care parameter which defines a risk for a given level of care;

wherein the harm index parameters further include a detectability parameter which defines the likelihood that the medication error would have been detected by a care-giver before a harmful adverse drug event occurs;

the processor is further configured to determine a quantifiable harm index value for each detected medication error stored in the log, and a quantifiable overall harm index value indicating the aggregate severity of the averted medication errors stored in the log based on combining the harm index values associated with the corresponding medication errors stored in the harm index database; and

the patient care device including a display configured to report to the device user the overall harm index value before potentially harmful medication delivery.

10. The system of claim 9, wherein the patient care device generates an alert based on the severity of the overall harm index value by varying the loudness or pattern of an audible alarm or by varying the display of a visual alarm.

11. The system of claim 10, wherein, based on the criticality of the error, the alert is provided either at the point of care, or at the point of care and a remote location.

12. The system of claim 9, wherein the drug type parameter is divided into categories that indicate low risk, medium risk, and high risk, and the dosage parameter is divided into categories indicate low risk, moderate risk, and high risk, and the cross association of the categories of the respective parameters yields a quantifiable harm index value.

13. The system of claim 9, wherein patient-specific information including laboratory results and age are included as factors integrated into the level or care parameter.

14. The system of claim 9, wherein the detectability parameter is divided into two categories, each associated with a harm index value, that indicate error detection would have either been likely or unlikely.

15. The system of claim 9, wherein the overall harm index value ranges from 3.5 to 14, with the low end of the range indicating a minimal harm potential, the middle of the range indicating a moderate harm potential, and the high end of the rage indicating a severe harm potential.

16. The system of claim 9, wherein a printer is operatively connected to the patient care device and prints a report including the overall harm index value.