IVAC: Basic case 1 (Case 7) In this case, criteria for IVAC are met by the Tmax of 39.0o C on MV day 4 and the 4 days of QAD starting on MV 5. The IVAC is on MV day 6 because this is the VAC day. NOT IVAC: Exception (Case 8), 4 day event window In this case, criteria for VAC are met. However, the criteria for IVAC are not. While the QADs meet criteria, the Tmax of > 38.0o C is on MV day 2. Day 2 is not within the VAE Event Window. In this case the event window is only 4 days long because while MV day 2 is included in the determination of whether or not there is a VAC, information from day 2 can’t be included in the determination of IVAC, Possible VAP or Probable VAP. NOT IVAC: Exception (Case 9), 3 day VAE event window In this case, criteria for VAC are met. However, the criteria for IVAC are not. the QADs meet the criteria, the Tmax of > 38.0o C is on MV day 1. Neither day 1 or 2 are within the VAE Event Window because the event window is only 3 days long. While MV days 1 and 2 are included in the determination of whether or not there is a VAC, no information from either of those 2 days can be included in the determination of IVAC, Possible VAP or Probable VAP. Determination of QADs
IVAC: Basic case 1 (Case 7) In this case, criteria for IVAC are met by the Tmax of 39.0o C on MV day 4 and the 4 days of QAD starting on MV 5. The IVAC is on MV day 6 because this is the VAC day. NOT IVAC: Exception (Case 8), 4 day event window In this case, criteria for VAC are met. However, the criteria for IVAC are not. While the QADs meet criteria, the Tmax of > 38.0o C is on MV day 2. Day 2 is not within the VAE Event Window. In this case the event window is only 4 days long because while MV day 2 is included in the determination of whether or not there is a VAC, information from day 2 can’t be included in the determination of IVAC, Possible VAP or Probable VAP. NOT IVAC: Exception (Case 9), 3 day VAE event window In this case, criteria for VAC are met. However, the criteria for IVAC are not. the QADs meet the criteria, the Tmax of > 38.0o C is on MV day 1. Neither day 1 or 2 are within the VAE Event Window because the event window is only 3 days long. While MV days 1 and 2 are included in the determination of whether or not there is a VAC, no information from either of those 2 days can be included in the determination of IVAC, Possible VAP or Probable VAP. Determination of QADs
NHSN_VAE_Rules_Summary_12.11.13_508.docx