Table 1

Comparison of normal reference intervals of pericardial fluid to transudative pleural fluid

Pericardial fluidPleural fluid
transudate
Biochemical components
Total protein (g/dL)2.8 (1.7–4.6)<3.0
Total protein ratio0.5 (0.29–0.83)≤0.5
Albumin gradient (g/dL)1.4 (0.18–2.37)≥1.2
LDH (U/L)357 (141–2613)≤147*
LDH ratio1.1 (0.40–2.99)≤0.6
Glucose (mg/dL)95 (80–134)65-139†
Total cholesterol (mg/dL)27 (12–69)≤45
Cellular counts
Leucocytes (106 cells/L)503 (35–2210)125 (83–214)
Mesothelial cells (106 cells/L)1283 (40–3790)1 (0–2)
Lymphocytes (106 cells/L)304 (19–1634)23 (16–31)
Polymorphonucleated cells, (106 cells/L)2 (0–116)1 (0–2)
Macrophages, (106 cells/L)1 (0–207)75 (64–81)
  • *Value is two-thirds of the upper limit of normal for those aged 18 years or older (222 IU/L).

  • †Similar to blood glucose concentration.