Analysis of pleural fluid
| Biochemical profile of pleural fluid | May 15 | May 22 | June 20 | July 25 |
| Glucose mg·dL−1 | 122 | 122 | 117 | 145 |
| Protein g·dL−1 | 4.3 | 4.2 | 3.7 | 3.2 |
| Albumin g·dL−1 | 2 | 2 | 1.2 | 1.4 |
| Cholesterol mg·dL−1 | 90 | 75 | 79 | 52 |
| Triglycerides mg·dL−1 | 29 | 25 | 33 | 28 |
| Lactic dehydrogenase IU·L | 283 | 285 | 243 | 248 |
| Amylase mg·dL−1 | 45 | 56 | 49 | 44 |
| Cell type | L+++ | L++ | L++ | L+ |
| PMN+ | PMN+ | RBC+ | PMN+/– | |
| RBC+ | RBC+ | RBC+++ |
L: lymphocytes; PMN: polymorphonuclear leukocytes; RBC: red blood cells. +: 10–20 cells·field−1 (×40 magnification); ++: 20–40 cells·field−1 (×40); +++: >40 cells·field−1 (×40); +/–: <10 cells·field−1.