Patient Preparation Collect at trough concentration

2.0 ml Serum 2-8 ?C ( no gel separator)

10.0 ml random urine 2-8 ?C

Collection Instructions Carefully clean skin prior to venipuncture. Avoid hemolysis. Avoid worksite collection. Patient Preparation Avoid fruits, juices and tea for 24 hours before collection

2.0 ml EDTA blood 2-8 ?C

Patient Preparation Collect trough just prior to next dose. Collect peak at end of 60 minute IV infusion or 30 minutes after end of 30 minute IV infusion or 60 minutes after IM dose.

2.0 ml Serum 2-8 ?C

Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20? C. Patient age is required for correct reference range.

5.0 ml heparin plasma Frozen

Collection Instructions Do not use preservatives. Urine with a pH <2.0 will be rejected. Patient age is required for correct interpretation. Provide patient age (required for correct reference range), sex, a brief clinical history, tentative diagnosis, and the therapy over the last three days (drugs, X-ray, infant formula, diet).

5.0 ml random urine Frozen

Centrifuge and immediately separate serum or plasma specimen from the cells into a clean transport tube. Do not use gel barrier/Serum Separator Tube (SST?).

2.0 ml Serum 2-8 ?C ( no gel separator)

Patient Preparation Collect at steady-state trough concentration. Specimen should be collected >12 hours after dose.

3.0 ml serum 2-8 ?C

Collect blood from stasis-free vein of patient (e.g., no tourniquet). Patient should not clench fist during collection, as muscular exertion often increases venous ammonia levels. Patient should avoid smoking prior to phlebotomy since smoking increases plasma ammonia levels. Tubes should be filled completely and kept tightly stoppered at all times. Place immediately on ice. Separate plasma from cells within 15 minutes and freeze plasma immediately.

2.0 ml EDTA Plasma Frozen

1.0 ml Serum 2-8 ?C

1.0 ml Serum 2-8 ?C

Collection Instructions Please submit 10 mL of a well-mixed random collection. Collect without preservatives. Refrigerate during and after collection. Aliquot unpreserved specimen prior to any addition of acid.

10 ml urine 2-8 c

3.0 ml serum 2-8 ?C

2-8 ?C Body Fluid

Patient prep: An early morning specimen is preferred. Allow specimen to completely clot (this can take up to 60 minutes). Centrifuge for 15 minutes as soon as the specimen is clotted. Transfer the serum/plasma into a properly labeled transfer tube. Specify specimen type (serum or plasma) on transfer tube. Do not submit glass tubes

1.0 ml Serum 2-8 ?C

1.0 ml Serum 2-8 ?C

Reject Criteria Hemolysis ? Received room temperature ? Received refrigerated

1.0 mL EDTA Plasma, frozen

Biopsy Sample to be send in 10% formaline

Patient Preparation Overnight fasting is preferred

2.0 ml Serum 2-8 ?C ( no gel separator)

1.0 ml Serum 2-8 ?C

Reject Criteria Gross hemolysis ? Grossly lipemic

1.0 ml Serum 2-8 ?C

Reject Criteria Gross hemolysis ? Grossly lipemic

1.0 ml Serum 2-8 ?C

1.0 ml Serum 2-8 ?C

1.0 ml Serum 2-8 ?C