Test Details
Methodology
Ion-selective electrode (ISE)
Result Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Evaluate electrolytes, acid-base balance, water balance. Chloride generally increases and decreases with plasma or serum sodium.
Chloride is increased in dehydration, with ammonium chloride administration, with renal tubular acidosis (hyperchloremic metabolic acidosis) and with excessive infusion of normal saline. Differential diagnosis of acidemias and alkalemias. Chloride is higher in hyperparathyroidism than in some of the other causes of hypercalcemia, but a great deal of overlap exists.
Chloride is decreased with overhydration, congestive failure, syndrome of inappropriate secretion of ADH, vomiting, gastric suction, chronic respiratory acidosis, Addison disease, salt-losing nephritis, burns, metabolic alkalosis, and in some instances of diuretic therapy.
Footnotes
Custom Additional Information
Like other electrolytes, chloride cannot be interpreted without clinical knowledge of the patient. A diagnostic approach to the evaluation of hyperchloremic metabolic acidosis includes use of the urinary anion gap in conjunction with measurement of plasma potassium and urinary pH.1
Specimen Requirements
Specimen
Serum (preferred) or plasma
Volume
1 mL
Minimum Volume
0.7 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube. Do not use oxalate, EDTA, or citrate plasma.
Collection Instructions
Separate serum or plasma from cells within 45 minutes of collection.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Reference Range
96−106 mmol/L
*Reference interval has been verified for all age groups including pediatrics (birth to 18 years) and geriatrics.
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Improper labeling
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 001206 | Chloride | 2075-0 | 001206 | Chloride | mmol/L | 2075-0 |
| Order Code | 001206 | |||||
| Order Code Name | Chloride | |||||
| Order Loinc | 2075-0 | |||||
| Result Code | 001206 | |||||
| Result Code Name | Chloride | |||||
| UofM | mmol/L | |||||
| Result LOINC | 2075-0 |