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Test Code ELPSR Electrolyte Panel, Serum


Necessary Information


Patient's age and sex are required.



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.


Useful For

Identifying a suspected imbalance in electrolytes or acid/base imbalance

Reporting Name

Electrolyte Panel, S

Specimen Type

Serum

Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated 24 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia OK

Reference Values

SODIUM

<1 year: not established

≥1 year: 135-145 mmol/L

 

POTASSIUM

<1 year: not established

≥1 year: 3.6-5.2 mmol/L

 

CHLORIDE

<1 year: not established

1-17 years: 102-112 mmol/L

≥18 years: 98-107 mmol/L

 

BICARBONATE

Males

<1 year: not established

1-2 years: 17-25 mmol/L

3 years: 18-26 mmol/L

4-5 years: 19-27 mmol/L

6-7 years: 20-28 mmol/L

8-17 years: 21-29 mmol/L

≥18 years: 22-29 mmol/L

Females

<1 year: not established

1-3 years: 18-25 mmol/L

4-5 years: 19-26 mmol/L

6-7 years: 20-27 mmol/L

8-9 years: 21-28 mmol/L

≥10 years: 22-29 mmol/L

 

ANION GAP

<7 years: not established

≥7 years: 7-15

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days

Specimen Retention Time

1 week

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

80051-Electrolyte Panel (if all 4 are performed)

82435-Chloride (if all 4 are not performed)

84295- Sodium (if all 4 are not performed)

84132-Potassium (if all 4 are not performed)

82374-Bicarbonate (if all 4 are not performed)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ELPSR Electrolyte Panel, S 24326-1

 

Result ID Test Result Name Result LOINC Value
NAS Sodium, S 2951-2
KS Potassium, S 2823-3
CL Chloride, S 2075-0
HCO3 Bicarbonate, S 1963-8
AGAP Anion Gap 33037-3

Forms

If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.