Laboratory Investigations
| Test Name | Requirements |
| P.S.A | Clot or serum 3-4 ml |
| Pap Smear Cytology | Smear Alcohol Fixed |
| HCV Genotyping | Clot or serum 4 ml |
| HBV Genotyping | Clot or serum 4 ml |
| PCR – MTB Qualitative | Clot or serum 3-4 ml |
| PCR – HCV RNA Quantitative | Clot or serum 3-4 ml |
| PCR – HCV RNA Qualitative | Clot or serum 3-4 ml |
| PCR Hep B DNA Quantitative | Clot or serum 3-4 ml |
| PCR Hep B DNA Qualitative | Clot or serum 3-4 ml |
| PCR Dengue Qualitative | Clot or serum 3-4 ml |
| Peripheral Blood Film | 3 cc EDTA Blood |
| Phenobarbitone (Drugs) | Clot or serum 3-4 ml |
| Phosphorous | Clot or serum 3-4 ml |
| Phenytoin Level | Blood |
| Physical Examination | Patient |
| Platelet Count | 3cc EDTA Blood |
| Pleural Fluid R/E | Plural Fluid |
| Protein C & S | 3cc Citrated (Blue Top) |
| Protein | Clot or serum 3-4 ml |
| Potassium | Clot or serum 3-4 ml |
| Progesterone | Clot or serum 3-4 ml |
| Progesterone for Cat | Clot or serum 3-4 ml |
| Progesterone for Dog | Clot or serum 3-4 ml |
| Prolactin | Clot or serum 3-4 ml |
| Protein Electrophorasis | Clot or serum 3-4 ml |
| Prothrombin Time (PT) | 2-3 ml blood in PT Tube |
| PT & APTT | Sodium Citrate Tube |
| PTH (Para Thyroid Hormone) | 3 – 5 CC Whole Blood in |
| Pus R/E | Pus |
| Pus for AFB Stain | Pus (Body Fluid) |
| Pregnancy Test in Urine | 10 – 20 ml Urine |
| Protein C | Clot or serum 3-4 ml |
| Protein S | Clot or serum 3-4 ml |
| RA. Factor | Clot or serum 3-4 ml |
| R.B.C Count | 3 cc EDTA Blood |
| RA. Factor Titer (Quantitative) | Clot or serum 3-4 ml |
| Renal Function Test | Clot or serum 3-4 ml |
| RBC Cholinesterase Test | 3 cc EDTA Blood |
| Reticulocytes Count | 3 cc EDTA Blood |
| Rh. Antibody Titre | Clot or serum 3-4 ml |
| Rota Virus Test | Stool |
| RPR (VDRL) | Clot or serum 3-4 ml |
| Rubella (IgG) | Clot or serum 3-4 ml |
| Rubella (IgM) | Clot or serum 3-4 ml |