| Lacosamide Level |
| Lactate (Plasma) |
| Lactoferrin (Stool) |
| Lambda Light Chain |
| Lambda Light Chain Flow Cyto |
| Lamotrigine |
| L-Carnitine |
| L-Carnitine (Random Urine) |
| LDL Cholesterol |
| LE(Lupus Erythematosus)Cell Test |
| Lead/Creatinine Ratio |
| Legionella Pneumophila PCR |
| Leishmania PCR |
| Leishmaniasis (Direct Smear) |
| Leptin |
| Leptospira Smear |
| leucine-rich glioma-inactivated protein1 |
| Lipase (Serum) |
| Lipid Profile |
| Listeria monocytogenes (IgG) |
| Listeria monocytogenes (IgM) |
| Listeria Qualitative PCR |
| Lupus Anticoagolant (IgG) |
| Lupus Anticoagolant (IgM) |
| Lupus Anticoagulant |
| Lyme Panel |
| Lymphocyte |
| Lymphocyte Transformation Test(LTT) |
