Test Directory

Evaluate toxicity and monitor therapeutic levels.

Specimen Type: Serum

Alternate Specimen Type: Plasma

Collection Container: Red Top, Plain Tube

Alternate Collection Container: Lavender Top (EDTA) or Green Top (Sodium or Lithium Heparin)

Desired Specimen Volume: 1 mL

1. Collect a red top, plain tube via venipuncture.
2. For peak collection: two to four hours after dose.
3. For trough collection: immediately prior to next dose.
4. Peak or trough levels may be used to monitor therapy because blood levels are fairly constant.

1. Separate serum from cells.
2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
3. State other drugs taken by patient.

State other drugs taken by patient.

Transport to the laboratory refrigerated. 

• Gel-barrier tube
• Hemolysis
• Lipemia
• Gross bacterial contamination

See patient report.

• Zarontin®