Clozaril®, FazaClo®
8 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
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Measures clozapine levels in blood. Used in therapeutic monitoring and toxicity prevention.
Serum or Plasma
1 mL
Red-top tube, lavender-top (EDTA) tube, or green-top (heparin) tube.
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Do not use a gel-barrier tube.
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
| Freeze/thaw cycles | Stable x3 |