Volume 18, Number 2—February 2012
CME ACTIVITY - Research
Invasive Pneumococcal Disease and Pandemic (H1N1) 2009, Denver, Colorado, USA
Table 3
Blood culture practices of 13 laboratories for samples from patients with invasive pneumococcal disease, Denver, Colorado, USA, September–-October 2008 and 2009*
Laboratory ID | Change in procedures | Sep–Oct 2008 |
Sep–Oct 2009 |
Change in cultures prepared, no. (%) | % change for SPN+ | |||
---|---|---|---|---|---|---|---|---|
No. cultures | No. (%) SPN+ | No. cultures | No. (%) SPN+ | |||||
1 | None | 935 | 3 (0.3) | 1,095 | 3 (0.3) | 160 (17) | 0 | |
2 | None | 5,634 | 11(0.2) | 6,515 | 5 (0.1) | 881 (16) | −50 | |
3 | None | 141 | 0 | 297 | 6 (2) | 156 (111) | NC | |
4 | None | 2,301 | 3 (0.1) | 2,454 | 6 (0.2) | 153 (7) | 100 | |
5 | BC on all 3 shifts | 2,007 | 4 (0.2) | 2,480 | 8 (0.3) | 473 (24) | 50 | |
6 | BC on all 3 shifts | 1,233 | 0 | 1,917 | 2 (0.1) | 684 (55) | NC | |
7 | 2009 Feb 1: new blood culture system | 2,008 | 4 (0.2) | 2,391 | 9 (0.4) | 383 (19) | 100 | |
8 | None | 2,072 | 5 (0.2) | 2,188 | 4 (0.2) | 116 (6) | 0 | |
9 | None | 1,538 | 1 (0.1) | 1,768 | 2 (0.1) | 230 (15) | 0 | |
10 | 2009 Oct: changed antiseptic | 2,423 | 4 (0.2) | 2,407 | 15 (0.6) | −16 (−1) | 200 | |
11 | None | 820 | 4 (0.5) | 1,079 | 10 (0.9) | 259 (32) | 80 | |
12 | None | 1,456 | 6 (0.4) | 2,178 | 6 (0.3) | 722 (50) | −25 | |
13 | None | 3,405 | 5 (0.1) | 3,390 | 9 (0.3) | −15 (0) | 200 | |
Total | 25,973 | 50 (0.2) | 30,159 | 85 (0.3) | 4,186 (16) | 50 |
*ID, identification; SPN+, positive for Streptococcus pneumoniae; NC, the percentage increase from 0 to 2 specimens could not be calculated; BC, blood culture.