Quick hits for pleural fluid analysis if the following are present-Amylase-Milky-Purulent-Bloody-Glucose < 60-pH < 7.2,"-Amylase: Pancreatitis esophageal rupture-Milky: Chylothorax (lymph)-Purulent: Empyema-Bloody: Malignant-Glucose < 60: RA-pH < 7.2: Parapneumonic effusion"