Electrolytes and Glucose Panel (Vitreous), Fluid (Forensic) Test (1919FL)
||Electrolytes and Glucose Panel (Vitreous), Fluid (Forensic)
||Chloride (Vitreous Fluid); Creatinine (Vitreous Fluid); Glucose (Vitreous Fluid); Potassium (Vitreous Fluid); Sodium (Vitreous Fluid); Urea Nitrogen (Vitreous Fluid)
||Forensic Analysis; This test is New York State approved.
||Sugar, Metal/Element, Electrolyte
||2 mL Fluid
||Red top tube (no additive) OR Plastic container (preservative-free)
||Quantitative results for sodium and for potassium in vitreous specimens will be affected if performed on Gray Top Tubes since these collection tubes contain sodium fluoride and potassium oxalate.
|Light Protection Required
||Room Temperature: Undetermined
Frozen (-20 °C): Undetermined
Vitreous glucose levels decrease rapidly after death in vivo. This decrease is time and temperature-dependent, with a delay in loss facilitated by cold temperatures. The in vivo loss of glucose is reported to stop at approximately 18 hours post-death. Additionally, NMS studies have demonstrated a continued in vitro loss of glucose in vitreous when specimens are maintained at room temperature or refrigerated. No in vitro loss occurs when specimens are maintained frozen (-20°C) for up to 30 days.
|Day(s) Test Set-up / TAT
||[Chemistry Analyzer] Monday Wednesday Friday / 1 day
[Colorimetry] Monday Wednesday Friday / 1 day
|Suggested CPT Code
|Test Summary Sheet
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.