Lab Test Directory—Saint Luke's Regional Laboratories
| PTN FREE | Phenytoin, Free |
| PHENYTOIN | Phenytoin, Total, Serum or Plasma |
| PETH | Phosphatidylethanol (PEth) |
| PHOSPHAT AB | Phosphatidylserine, IgG, IgM, and IgA Antibodies |
| REF MISC | Phosphoethanolamine Level, Urine |
| PHOS U | Phosphorus Urine Quant Random |
| PHOS U 24 | Phosphorus, Quantitative, 24 Hour, Urine |
| PHOS | Phosphorus, Serum or Plasma |
| LPMGF | Phytohemagglutinin (PHA) Mitogen |
| PLF HGB | Plasma Free Hemoglobin |