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Potassium

Alias: K

Discipline: Clinical Chemistry

Test information: Potassium is the main intracellular cation. Small changes in the distribution of potassium can give rise to medical emergencies.  Diseases of the kidney, adrenal and any process that affects acid base disturbance will affect plasma potassium concentration. Crush injuries are also a cause of hyperkalaemia.

Specimen Type(s)
  • Blood;
Other Acceptable Specimen Type(s)
N/A
Specimen Container - Adult
  • Gold Top SST BD;
Specimen Container - Paediatric
  • Light Green Top Microtainer BD;
Analytes
  • N/A;
Part of a test profile?
Electrolytes
Volume (min) of sample to be sent to laboratory
4ml
Patient Preparation, Sample Handling and Transport
N/A
Maximum add on time
5 days
Units and Reference Ranges / Interpretation
RR for Male and Female
Up to 1mth - 3.4 - 6.0 mmol/L
1mth to less than 1yr - 3.5 - 5.7 mmol/L
1yr to less than 16yrs - 3.5 - 5.0 mmol/L
16yrs & above - 3.5 - 5.3 mmol/L
UKAS number
8869
UKAS accredited test?
Yes
Comments
N/A

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Last updated: 09-05-2024