Research Article

Procalcitonin Levels in Gram-Positive, Gram-Negative, and Fungal Bloodstream Infections

Table 2

PCT median values corresponding to pathogens that were isolated from two or more patients with monomicrobial bloodstream infections.

PathogenNumber of patientsMedian PCT values (interquartile range) (ng/mL)

Gram-positives
Staphylococcus aureus 1033.6 (1.3–9.3)
Enterococcus faecalis 430.5 (0.3–2.2)
Enterococcus faecium 181.6 (0.9–2)
Streptococcus pneumoniae 186.9 (3.3–23.9)
Streptococcus pyogenes 52.1 (0.2–2.2)
Streptococcus gallolyticus 414 (1.6–26.1)
Listeria monocytogenes 31.1 (0.6–1.2)
Streptococcus parasanguinis 30.3 (0.2–2.7)
Streptococcus agalactiae 31.8 (1–7.9)
Streptococcus mutans 26.3 (0.6–12.1)
Streptococcus bovis 21.1 (0.7–1.4)
Streptococcus sanguinis 25.4 (0.1–10.7)
Propionibacterium acnes 20.07 (0.05–0.1)
Gram-negatives
Enterobacteriaceae
  Escherichia coli 18318.5 (6.5–56.4)
  Klebsiella pneumoniae 5622.3 (9.6–52.4)
  Enterobacter cloacae 145.5 (3.5–7.5)
  Proteus mirabilis 1211.3 (8.3–16.5)
  Serratia marcescens 514.9 (3.8–15.5)
  Klebsiella oxytoca 52.3 (1.1–3.7)
  Salmonella typhi 323.2 (18–24.7)
  Pantoea agglomerans 321.5 (12.5–110.7)
  Enterobacter aerogenes 271.8 (68.2–75.4)
  Citrobacter koseri 221 (14.4–27.7)
 Nonfermentative obligate aerobic
  Pseudomonas aeruginosa 216.8 (1.3–11.9)
  Acinetobacter baumannii 162.2 (0.6–7.4)
  Stenotrophomonas maltophilia 420.5 (9.4–166.6)
 Obligate anaerobic
  Bacteroides fragilis 82.8 (0.5–8.5)
Fungi
Candida albicans 120.5 (0.3–1.2)
Candida parapsilosis 30.6 (0.5–0.9)
Candida lusitaniae 50.6 (0.4–0.7)