Phosphorous Phosphorous (Urine) Platelets count Pneumonia Panel Group Potassium Potassium (Urine) PPD (Mantoux tuberculine test) PR3 Serine Protease 3 antibody ANCA-C Pregnancy test (hCG) Pregnenolone proBNP (pro-Brain Natriuretic Peptide) Progesterone Progesterone 17-(OHa) Prolactin Prolactin Antibody - Macroprolactinemia Protein C Protein Electrophoresis Protein Phenotyping Protein S Protein (Total) Protein (Urine) Proteus Weil-Felix (Rickettsia rickettsii) Prothrombin Time PSA Total Pseudocholinesterase 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19