| Test name | Collection |
| Karyotyping for tissues. (Products of conception) | Tisues in Saline. Formalin not accepted. |
| KERATIN Abs. | Serum 1.0 ml. Refrigerated |
| KIDNEY FUNCTIONS | Serum 2.0 ml. Refrigerated. |
| Kidney IHC (IgG/A/M/C3) | Contact Lab |
| Test name | Collection |
| L. E CELLS (LATEX) | Serum 1.0 ml. Refrigerated |
| La | Serum 1.0 ml. Refrigerated |
| LDH | Serum 1.0 ml. Refrigerated |
| LDL - Cholesterol | Serum 1.0 ml. Refrigerated. 12 - 14 hr fasting |
| LH | Serum 1.0 ml. Refrigerated |
| LIPASE | Serum 1.0 ml. Refrigerated |
| LIPIDS PROFILE | Fasting 12-14 hr over night |
| LIPOPROTEIN (a) | Serum 1.0 ml. Refrigerated. |
| LIPOPROTEIN ELECTROPHORESIS. | Serum 1.0 ml. Refrigerated. 12 - 14 hour fasting |
| LITHIUM |
Serum 1.0 ml.Refrigerated. SST not acceptable |
| LIVER FUNCTIONS | The patient must be fasting 6-8 hrs over night. |
| LKM | Serum 1.0 ml. Refrigerated |
| LUPUS ANTICOAGULANT | Frozen citrated plasma |
| Test name | Collection |
| MAGNESIUM (Mg) (URINE) | 24 hr. URINE. No preservative. |
| MAGNESIUM (Mg) (Serum) | Serum 1.0 ml. Refrigerated |
| MALARIA Abs. | Serum 1.0 ml. Refrigerated |
| MALARIA Ag. | Heparinized blood. Ambient. |
| MALARIA FILM | EDTA Blood. |
| MCA | Serum 1.0 ml. Frozen |
| MEASLES Abs. | Serum 2.0 ml. Refrigerated. |
| MEDITERRENIAN FEVER DNA TESTING | 10 ml. EDTA blood. |
| METABOLIC SCREEN | 2.0 ml. HEPARIN BLOOD + 10 ml. Fresh urine sample. |
| METANEPHRINES | 100 mL aliquot of a 24-hour urine preserved with 25 mL of 50% acetic acid - OR - 30 mL of 6N HCL during collection. Record total volume on request form and urine container. |
| METHADONE |
Random urine sample, Avoid addition of water (strict supervision) |
| METHOTREXATE | Serum 1.0 ml. Refrigerated |
| MICROALBUMIN/URINE |
24 hr urine. A random urine is also 1``acceptable 5.0 ml without preservatives and refrigerated. |
| Microsomal antibodies (thyroid) | serum 1.0 ml refrigerated |
| MLC (mixed lymphocyte culture) | 5.0 ml heparinized donor blood + same for recipient. Ambient. |
| MONOSPOT TEST | Serum 1.0 ml. Refrigerated |
| MORPHINE | Random urine sample, Avoid addition of water (strict supervision) |
| MUMPS Abs. | Serum 1.0 ml. Refrigerated |
| MYCOPLASMA (UROGENITAL) - CULTURE ONLY. | Any urogenital sample. |
| MYCOPLASMA PNEUMONIA CULTURE | Sputum or nasopharyngeal swab. |
| MYCOPLASMA/UREAPLASMA C/S | Contact Lab |
| Test name | Collection |
| NBT (Nitroblue tetrazolium) | 5.0 ml. heparinized blood. Ambient. |
| NEURONE SPECIFIC ENOLASE (NSE) | Serum 2.0 ml. Frozen |
| Neutrophil function chemotaxis | 1.0 ml EDTA blood. Mix well. Ambient. |
| Test name | Collection |
| OESTEOPOROSIS PANEL (Osteocalcin-dpd-hydroxyproline) |
Heparinized plasma. 1.0 Ml. Frozen. + 10 Ml aliquot of a 24 hour urine ON 6M HCL. + 10 ml 2nd void sample. Wrap in foil. |
| OPIATES | Random urine sample, Avoid addition
of water (strict supervision) |
| OSMOLALITY (SERUM) | Serum 2.0 ml. Refrigerated |
| OSMOLALITY (URINE) | 24 hr. urine Or Random. 1.0 ml. Refrigerated |
| OSMOTIC FRAGILITY | Heparin whole blood. EDTA not accepted. |
| OSTEOCALCIN (Bone Gla Protein) | Heparinized plasma. 1.0 ml. Frozen |
| OXALATES (URINE) | 100 mL aliquot of a 24-hour urine preserved with 30 mL of 6 N HCL during collection. Record total urine volume on the request form and urine container. |