LAB683
Collect
Plain red. Also acceptable: Lavender (K2or K3EDTA) or pink (K2EDTA).
Patient Preparation
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Specimen Preparation
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Unacceptable Conditions
Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).
Storage/Transport Temperature
Refrigerated.
Stability (from collection to initiation)
After separation from cells: Ambient: 5 days; Refrigerated: 1 week; Frozen: 2 months
Remarks
Submit With Order
Please indicate in the supplied fields:
1. Dose - List drug amount and include the units of measure
2. Route - List the route of administration (IV, oral, etc.)
3. Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4. Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)
Please indicate in the supplied fields:
1. Dose - List drug amount and include the units of measure
2. Route - List the route of administration (IV, oral, etc.)
3. Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4. Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)
Laboratories.Performed
Tue, Wed, Sat
Methodology
Quantitative Enzyme Immunoassay
Reported
1-5 days
Synonyms
- Zarontin
- LAB683
Ordering Recommendations
Optimize drug therapy and monitor patient adherence.
Reference Interval
| Components | Reference Interval |
|---|---|
| Ethosuximide | Therapeutic: 40-100 µg/mL Toxic: > 150 µg/mL |
Interpretive Data
The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Toxic concentrations may cause dizziness, drowsiness and anorexia. The incidence of adverse reactions is low; however, life-threatening agranulocytosis and fatal pancytopenia have been reported.
CPT Codes
80168
| Collection |
LAB683
Collect
Plain red. Also acceptable: Lavender (K2or K3EDTA) or pink (K2EDTA).
Patient Preparation
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Specimen Preparation
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Unacceptable Conditions
Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).
Storage/Transport Temperature
Refrigerated.
Stability (from collection to initiation)
After separation from cells: Ambient: 5 days; Refrigerated: 1 week; Frozen: 2 months
Remarks
Submit With Order
Please indicate in the supplied fields:
1. Dose - List drug amount and include the units of measure
2. Route - List the route of administration (IV, oral, etc.)
3. Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4. Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)
Please indicate in the supplied fields:
1. Dose - List drug amount and include the units of measure
2. Route - List the route of administration (IV, oral, etc.)
3. Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4. Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)
| Ordering |
Performed
Tue, Wed, Sat
Methodology
Quantitative Enzyme Immunoassay
Reported
1-5 days
Synonyms
- Zarontin
- LAB683
Ordering Recommendations
Optimize drug therapy and monitor patient adherence.
| Result Interpretation |
Reference Interval
| Components | Reference Interval |
|---|---|
| Ethosuximide | Therapeutic: 40-100 µg/mL Toxic: > 150 µg/mL |
Interpretive Data
The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Toxic concentrations may cause dizziness, drowsiness and anorexia. The incidence of adverse reactions is low; however, life-threatening agranulocytosis and fatal pancytopenia have been reported.
| Administrative |
CPT Codes
80168