| Calprotectin, Stool | 
| CA - 125 | 
| CEA | 
| CA 19-9 | 
| Cyclosporine . Blood (CSA) | 
| C1 - Inhibitor | 
| C-Reactive Protein , High Sensivity | 
| CH50 | 
| Coombs - Wright | 
| CBC | 
| CA 15-3 | 
| C3 | 
| C – Reative Protein | 
| Chloride | 
| Ceruloplasmin | 
| Ca | 
| Cl | 
| Cu | 
| cHgb | 
| Cl - | 
| Crea | 
| Caroten غيرفعال | 
| Ceruloplasmin | 
| Cholesterol | 
| C4 | 
| Creat. | 
| Chol | 
| Cholesterol/HDL Ratio | 
| CK MB | 
| CPK | 
| Carbamazepine | 
| Calcitonine | 
| Calcium | 
| Chlamydia - IgA,G,M | 
| C - Peptide | 
| Cr.far.R | 
| Cr.Clearance.far | 
| Creat.(24hrs)(Urine) | 
| Creat.Clearance(24h) | 
| Ca(24hrs)(Urine) | 
| Cl(24hrs)(Urine) | 
| Cu(24hrs)(Urine) | 
| Ca(Random)(Urine) | 
| Cr.(Random)(Urine) | 
| Ca/Cr Ratio(Urine) | 
| Cl(Random)(Urine) | 
| Creatinin , Urine | 
| Clotting Time, Blood | 
| Creatinine Clearance | 
| Cerebrospinal Fluid (CSF), Analysis and Culture | 
| Copper (Cu) | 
| Cortisol Blood | 
| Complement Component C1q, Serum | 
| clostridium difficile Toxin A/B assay, Stool | 
| Coagulation Factor VII Activity Assay, Plasma | 
| Creatinine | 
| CPK |