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Lab Test Reference Manual
Human Reference Manual
Pages
23038
Lab Test Reference Manual
Human Reference Manual
Currently selected
23038
Sodium
Marshfield Lab Public WebSite
Marshfield Clinic Public WebSite
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Site Contents
Sodium
Test Code: NA
Overview
Ordering
Specimen
Performing
Clinical/Interpretive
Contacts
Coding
Synonyms/Keywords
Synonyms, Keywords
Na, Serum, i-Stat Sodium
Useful For
Useful For
Sodium measurements are used in the diagnosis and treatment of aldosteronism (excessive secretion of hormone aldosterone), diabetes insipidus, adrenal hypertension, Addison's disease, dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.
Specimen Requirements
Specimen Requirements
Fasting Required
Specimen Type
Preferred Container/Tube
Acceptable Container/Tube
Specimen Volume
Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No
Plasma/Serum
Lithium-heparin Plasma Separator (PST), Serum Separator Tube (SST)
Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT)
1 mL
0.3 mL
0.6 mL whole blood
i-Stat only = Whole Blood
Lithium-heparin Green Top Tube (GTT)
1 mL
200 uL
Collection Processing Instructions
Collection Processing
Stat orders will be run locally on the i-Stat.
Non-stat orders will be sent to Marshfield for analysis.
i-Stat: Sample must be tested within 10 minutes of collection.
Specimen Stability Information
Specimen Stability Information
Specimen Type
Temperature
Time
Plasma/Serum
Ambient
5 days
Refrigerate
7 days
Frozen
1 year
i-Stat Whole Blood
Ambient
10 minutes
Rejection Criteria
Rejection Criteria
Collections with potassium oxalate/sodium fluoride
i-Stat testing: clotted samples
i-Stat testing: anticoagulants other than lithium heparin
Performing Laboratory Information
Performing Laboratory Information
Performing Location
Day(s) Test Performed
Analytical Time
Methodology/Instrumentation
Chippewa Falls
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
Weston
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Eau Claire
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Park Falls
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Ladysmith Medical Center
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Lakeview Medical Center
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Marshfield
Monday through Sunday
Less than 2 hours
ISE/Beckman AU
Minocqua
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Neillsville
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Stevens Point
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
Wisconsin Rapids
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
Reference Range Information
Reference Range Information
Performing Location
Reference Range
All Performing Sites
133-144 mmol/L
See Critical Value List for list of current critical values
Outreach CPTs
Outreach CPT Codes
CPT
Modifier
(if needed)
Quantity
Description
Comments
84295
Synonyms/Keywords
Synonyms, Keywords
Na, Serum, i-Stat Sodium
Ordering Applications
Ordering Applications
Ordering Application
Description
Centricity
Sodium (NA)
Cerner
Sodium Level
COM
Sodium - Blood
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Requirements
Fasting Required
Specimen Type
Preferred Container/Tube
Acceptable Container/Tube
Specimen Volume
Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No
Plasma/Serum
Lithium-heparin Plasma Separator (PST), Serum Separator Tube (SST)
Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT)
1 mL
0.3 mL
0.6 mL whole blood
i-Stat only = Whole Blood
Lithium-heparin Green Top Tube (GTT)
1 mL
200 uL
Collection Processing
Collection Processing
Stat orders will be run locally on the i-Stat.
Non-stat orders will be sent to Marshfield for analysis.
i-Stat: Sample must be tested within 10 minutes of collection.
Specimen Stability Information
Specimen Stability Information
Specimen Type
Temperature
Time
Plasma/Serum
Ambient
5 days
Refrigerate
7 days
Frozen
1 year
i-Stat Whole Blood
Ambient
10 minutes
Rejection Criteria
Rejection Criteria
Collections with potassium oxalate/sodium fluoride
i-Stat testing: clotted samples
i-Stat testing: anticoagulants other than lithium heparin
Useful For
Useful For
Sodium measurements are used in the diagnosis and treatment of aldosteronism (excessive secretion of hormone aldosterone), diabetes insipidus, adrenal hypertension, Addison's disease, dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.
Reference Range Information
Reference Range Information
Performing Location
Reference Range
All Performing Sites
133-144 mmol/L
See Critical Value List for list of current critical values
For more information visit:
http://labtestsonline.org
Performing Laboratory Information
Performing Laboratory Information
Performing Location
Day(s) Test Performed
Analytical Time
Methodology/Instrumentation
Chippewa Falls
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
Weston
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Eau Claire
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Park Falls
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Ladysmith Medical Center
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Lakeview Medical Center
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Marshfield
Monday through Sunday
Less than 2 hours
ISE/Beckman AU
Minocqua
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Neillsville
Monday through Sunday
Less than 2 hours
ISE/Siemens Dimension
Stevens Point
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
Wisconsin Rapids
Monday through Friday
Less than 2 hours
ISE/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
Outreach CPT Codes
CPT
Modifier
(if needed)
Quantity
Description
Comments
84295
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For most current information refer to the Marshfield Laboratory online reference manual.