Chloride, CSF (Sendout)

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General Information

Lab Name
Lab Code
610
External Test Id
0020163
Description

Useful For: Measuring chloride levels in CSF. CSF chloride levels are expected to increase and/or decrease with conditions which increase and/or decrease serum chloride levels. CSF chloride is not recommended for the routine evaluation of suspected tuberculous meningitis.¹

Ordering Note: If provider requests electrolytes on CSF, order this test along with Sodium, CSF and Potassium, CSF.

References
  1. ARUP Resource: Body Fluid Reference Intervals and/or Interpretive Information for Select Analytes
Synonyms
0020163, Cl, CSF Electrolytes
Components

Interpretation

Method

Quantitative Ion-Selective Electrode

Reference Range
Ref. Range Notes

Reference Intervals:

Infants: 110–130 mmol/L
Adults: 118–132 mmol/L
References
  1. ARUP Resource: Body Fluid Reference Intervals and/or Interpretive Information for Select Analytes

Ordering & Collection

Specimen Type
CSF, Cerebrospinal Fluid, Spinal Fluid
Collection

Collect 1 mL CSF

Handling Instructions

Outside Laboratories: Centrifuge to remove cellular material. Transfer 1 mL supernatant to a separate aliquot. Refrigerate sample while awaiting shipment; transport with a cold pack.

Stability: Refrigerated (preferred): 2 weeks; Frozen: 6 months; Ambient: 2 weeks.

Unacceptable Conditions: Specimen types other than those listed. Specimens too viscous to be aspirated by instrument. Specimens containing sodium fluoride/potassium oxalate as anticoagulants.

Quantity
Requested: 1 mL CSF
Minimum: 0.2 mL CSF

Processing

Receiving Instructions

Centrifuge to remove cellular material. Transfer supernatant to a separate plastic vial. Refrigerate CSF.

Sendouts:

  • Order ARUP Test: 0020163
  • Interfaced: Yes [Interface: 602; Department: ARPR]

Stability: Refrigerated (preferred): 2 weeks; Frozen: 6 months; Ambient: 2 weeks.

Unacceptable Conditions: Specimen types other than those listed. Specimens too viscous to be aspirated by instrument. Specimens containing sodium fluoride/potassium oxalate as anticoagulants.

Misc Sendout

Performance

Lab Department
Frequency
Performed: Sunday through Saturday. Reported: 1 day from sample receipt at ARUP Laboratories.
Available STAT?
No
Performing Location(s)
Sendout ARUP Laboratories, Inc.
800-522-2787

500 Chipeta Way
Salt Lake City, UT 84108

Billing & Coding

Billing Comments

CPT: 82438