Levey-Jennings Records

Levey-Jennings allows you to designate specific devices, material lots, and parameters for which results are charted using the associated ranges within the charted period.

Jump to a heading on this page:
Institution Access
Adding and Generating
Editing
Cloning
Deactivating or Deleting
Printing
Levey-Jennings Actions
Tasks
Fields

Institution Access

A Levey-Jennings record’s institution identity is defined upon record generation according to the following rules:

• If results are associated with the Levey-Jennings record, the institution(s) of the device(s) from the result set is captured.
• If no results are associated with the Levey-Jennings record, the institution(s) of the device(s) selected as part of the criteria is captured.
• If the above criteria is not met, the home institution of the user generating the record is captured.

A Levey-Jennings record’s institution identity is a snapshot from when the record is generated and is fixed once a Levey-Jennings is reviewed.

Adding and Generating

Levey-Jennings records can be manually added to the RALS™ SYSTEM. Levey-Jennings records can be generated based on the selected criteria. A generated Levey-Jennings record with associated results contains at minimum one chart, one table of result values, and one table of statistics. See Result Reviews for more information on reviewing result values.

The system attempts to generate a chart for every combination of selected chart criteria and includes a graph displaying the respective result value data points, chart statistics, and a result values data table. If multiple QC levels are generated, then the charts are broken into different level tabs. If no data is available for a chart criterion (e.g. device(s), control(s), reagent(s), parameter(s)), or no result exists for a specific parameter based on the chart date range, then no data will be charted for that item.

For more information about generating a Levey-Jennings record:

• Criteria
  
• Ranges
  
• Lines
  
• Legend
  
• Statistics
• Result Values
  

Criteria

Selecting Levey-Jennings criteria allows you to choose what is charted. Criteria become read-only once a Levey-Jennings chart has been saved or reviewed. The following criteria can be selected when generating a Levey-Jennings record:

Ranges

Chart ranges are stored on either the reagent, the control, or on the result itself, based on the device type. Depending on where the ranges are stored, and if they’re supplied, will determine what ranges are used for generating a Levey-Jennings chart. When no ranges are available, no data is charted.

Levey-Jennings supports historic ranges. The chart will start with the most recent ranges for the material from the result value which predate the start time of the chart. If a material range change occur during the period covered by the chart, the range plot changes to the new range from that point forward to the next range change or the end of the chart, whichever comes first.

Lines

When viewing a Levey-Jennings chart, the following values will be reflected using horizontal lines on the graph:

• Mean (the target value) is represented by a solid line
• High and low values of the target range are represented by dashed lines
• Additional set of dashed lines display at range points plus half the difference between mean and range points
• Graph’s outer boundaries display at range points plus the difference between mean and range points

If multiple time zone support is enabled, the x-axis and tooltips are displayed relative to your time zone preference.

Legend

A chart legend is shown under the criteria after a chart has been generated, saved, or reviewed.

The legend contains the following icons that can match to result value data points on a graph:

Icon	Description	Notes
	In Range	Indicates values that are within the expected ranges
	Excluded	Indicates results values that are not included in statistics; automatic or manual exclusion is denoted in the tooltip
	Out of Range	Indicates values that are outside of the target range but within the chart’s boundary
	Out of Graph Range	Indicates values that are outside of the chart’s boundary

Each legend item has a toggle which defaults to enabled. To hide result value data points on the graph, disable the toggle associated with the result value data points.

Statistics

Result Values

The result values associated with a chart are displayed with the following information:

If multiple time zone support is enabled, the set of results on the chart is determined by the time zone selected at chart generation, not your time zone preference. Changing your time zone preference will change the dates and times displayed on the chart but does not change the set of results on the chart.

See Result Reviews for information on reviewing result values.

Editing

Levey-Jennings records are automatically saved when generated and can be directly edited until they are reviewed. Reviewed records cannot be edited.

Levey-Jennings records can be bulk edited, and groups of Levey-Jennings records can be reviewed together. When reviewing a group of records, individual records may be removed from the group if desired. After all levels on all records have been viewed, the entire group can be marked as reviewed. See Levey-Jennings Reviews for more information on reviewing Levey-Jennings records.

Bulk editing is not available in Internet Explorer.

Cloning

All Levey-Jennings records can be cloned. All values will be copied, except:

Deactivating or Deleting

Levey-Jennings records that have not been reviewed can be deleted. Deleted records cannot be restored.

Printing

Levey-Jennings records can be printed. If the result values are expanded on the page, then the result values are printed according to the applied value range filters (if any): In Range, Excluded, Out of Range, Out of Graph Range, Device Tasks

Note: You can only change these filter settings on unreviewed charts.

If the result values are not expanded on the page, then the result values are not printed.

Levey-Jennings Actions

The following actions are available for Levey-Jennings records:

• Review
  
• Delete Reviews
  
• Result Review
  

Review

See Levey-Jennings Reviews for more information on reviewing Levey-Jennings records.

Delete Reviews

The delete reviews action allows you to delete all reviews at once for a given Levey-Jennings record. A special permission is required. Once the reviews associated with the record have been deleted, the record itself can be deleted.

Result Review

One or more results can be reviewed from a Levey-Jennings record. A result can be reviewed multiple times. While reviewing results on a Levey-Jennings record, the values can be excluced from statistics and charts.

The initial state of the selected result values to be reviewed (i.e., included, automatically excluded, manually excluded, mixed states) will determine the default state of the exclude checkbox on the review dialog and will affect whether or not the state of a selected value can be changed.

See Result Reviews for more information on reviewing results.

Tasks

The RALS™ SYSTEM provides the ability to manage Levey-Jennings tasks. For more information on tasks, see the following sections:

• Tasks
• Levey-Jennings Tasks

Fields

Levey-Jennings record fields are located in the following places in the RALS™ SYSTEM:

• Data Table Fields
• Add Fields
• View or Edit Details Fields

Data Table Fields

When viewing Levey-Jennings records in a data table, the fields are defined as follows:

Add Fields

When adding a Levey-Jennings record, the fields are defined as follows:

View or Edit Details Fields

When viewing a Levey-Jennings record’s details, the fields are defined as follows: