Full details for "Potassium". | |
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Name |
Potassium |
Alternative name/Profile |
Renal Profile |
Department |
Biochemistry |
Investigation |
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Specimen type |
Serum |
Sample type |
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Sample container & volume |
5ml- Red Tube |
Frequency of analysis |
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Turnaround time |
1 day. For acute wards turn-around-time is 1hr and 15mins. |
Availability |
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Notes |
Unspun samples should NEVER be stored in the fridge. Samples should be separated from cells if storage for more than 3 hours is anticipated. Serum potassium concentration may be up to 0.7 mmol/L higher than in plasma. Potassium concentration may be increased by muscle activity and significantly increased by significant thrombocytosis. Haemolysis can cause a positive interference in the analysis of serum potassium (K), thus causing a potential overestimation of the result. Please note that in moderately haemolysed samples Potassium results above the reference range will be reported only as > 5.3mmol/L. Similarly, Potassium results in haemolysed samples below the reference range will be reported only as either < 3.5mmol/L or < 3.0mmol/L, as appropriate. Chelating anti-coagulants such as EDTA must be avoided. EDTA contaminated samples will not be reported for Potassium. Refer to order of draw to prevent contamination.
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Related links |
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Reference range |
Serum 3.5 - 5.3 mmol/L Plasma 3.5 - 5.0 mmol/L |
Last updated |
Mon, 15 Apr 2024 08:06:31 IST |