Skip to content

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Find out more here. Hide this message

Laboratory Medicine

Test Directory / Sodium

Sodium

Brown clotted serum, gel barrier or orange lithium heparin

TestSodium
Common AbbreviationsSOD, Na2+
ProfileUrea and Electrolytes
Tube typeBrown clotted serum, gel barrier or orange lithium heparin
Clinical IndicationMeasurement is used to identify hypo or hypernatraemia. It may be measured in patients with fluid abnormalities (e.g. dehydration and oedema) or in patients with a variety of different symptoms. Monitoring of sodium levels may also be indicated in patients taking certain medications (e.g. ACE inhibitors).
Specimen TypeBlood
Sample typeSerum or plasma
Minimum Volume0.5mL If requesting more than 10 tests please send an additional brown clotted serum sample.
Special PrecautionsNo special requirements
Stability2 weeks at 2-25°C
Turnaround TimeUrgent: 2 hours Inpatient: 4 hours Outpatient/ GP: 24 hours
LaboratoryYork and Scarborough
Reference Interval133-146 mmol/L (Recommended by Pathology Harmonisation Reference Group)
LimitationsHaemolysed samples are not suitable for analysis.
Notes
Looking down a long bright hospital corridor with treatment rooms on the left and windows on the right. At the bottom of the corridor is one member of staff in a blue nursing uniform

Our Hospitals

Logo on blue with swoosh

Fundraising

Chinese Poland

View all languages >

Invitation to attend the Trust’s Annual Members Meeting

Trust members and the general public are invited to find out more about their local hospitals by attending the Trust’s virtual Annual Members Meeting (AMM), incorporating the Annual General Meeting (AGM), on Tuesday 26 October 2021, between 11:00am-12:30pm.