The purpose of Chapter 2 is to standardize the classification of an infection as present on admission (POA) or a healthcare-associated infection (HAI), using objective surveillance definitions and guidance for NHSN surveillance.

A BSI repeat infection timeframe (RIT) is created during which no new BSI events will be reported, but any additional organisms identified are added to the initial event. Positive blood specimens collected outside of the BSI RIT must be investigated as primary or secondary.

Secondary BSI Attribution Period (SBAP): The period in which a blood specimen must be collected for a secondary BSI to be attributed to a primary site of infection. This period includes the Infection Window Period (IWP) combined with the Repeat Infection Timeframe (RIT).

It is strongly encouraged that you read and study this guidance found in the Identifying Healthcare-associated Infections (HAI) for NHSN Surveillance [PDF - 365KB] document. The Worksheet Generator will provide an electronically generated worksheet that identifies: It DOES NOT determine that all NHSN infection criteria have been met.

• 14-day Repeat Infection Timeframe (RIT) • Secondary Bloodstream Infection Attribution Period • Pathogen Assignment Guidance These changes address a variety of scenarios to include repeat infections of the same type, concurrent infections of differing types, and pathogen assignment in multi-pathogen infections.

Infection Timeframe (RIT) will extend through the entire patient admission. The Secondary BSI Attribution Period will also extend through the entire patient admission, fo. the organism(s) that match the organism(s) used to meet the ENDO .

Repeat Infection Timeframe (RIT) The RIT will apply at the level of specific type of infection with the exception of Bloodstream Infection (BSI), Urinary Tract Infection

Infections occurring newborns with date event on hospital day 1 or day 2 are considered POA. The specific CDC Location code is determined by the type of patients cared for in that area according to the 80% Rule. then that area designated as type of admission/discharge diagnosis used when determining appropriate mapping.

determination since it impacts the determinations of HAI vs. POA, Repeat Infection Timeframe (RIT), location of attribution and device association. Reminder that date of event may be, but is not always, the date of the diagnostic test which is used to set the infection window period.

CLABSI can be prevented through proper insertion techniques and management of the central line. These techniques are addressed in the CDC’s Healthcare Infection Control Practices Advisory Committee (CDC/HIPAC) Guidelines for the Prevention of Intravascular Catheter-Related Infections, 2011.2.