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Pneumocystis carinii, DFA

Test code: 34286

CPT code(s): 87281

Methodology: Direct Immunofluorescence Assay

Includes: Pneumocystis jirovecii (P. carinii), DFA and Concentration

Clinical significance: Pneumocystis carinii, now considered a fungus, is an opportunistic infection seen especially in patients infected with HIV and on immunosuppressive therapy, e.g., post-transplantation. Pneumocystis carinii causes pneumonia.

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PTH, Intact and Ionized Calcium

Test Code: 36736

CPT Code(s): 82310, 82330, 83970

Includes: PTH Intact, Calcium, Ionized Calcium

Methodology: PTH Immunoassay (IA) • Calcium: Spectrophotometry (SP) • Ionized Calcium: Ion Specific Electrode (ISE)

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Prothrombin Time with INR Collections

Test code: 8847

CPT code(s): 85610

Methodology: Photo-optical Clot Detection

Clinical Significance: Screening test for abnormalities of coagulation factors that are involved in the extrinsic pathway. Also used to monitor effects of Warfarin therapy and to study patients with hereditary and acquired clotting disorders.

Test FAQ: Prothrombin Time with INR