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Potassium, Urine, Timed

Mnemonic

U TM K

Synonym

Urine Potassium - Potassium (K+) in Urine - Urine Potassium Electrolyte - Urine Potassium Cation

Includes

Urine Potassium, Urine Potassium/Day

Specimen Collection Requirements

Collect

Preferred: 24 hour urine without preservatives, refrigerate during collection. Also acceptable: Other timed urine collections.

Handling

Collect urine over 24 hours. Refrigerate during collection. Mix urine well before removing aliquot. Record collection time interval and total volume on the transport tube and test request form.

Preferred Volume

2.0 mL urine

Minimum Volume

0.5 mL urine

Transport

Refrigerated (2-8°C)

Stability

Room Temperature (18-26°C): 7 days; Refrigerated (2-8°C): 45 days; Frozen (≤-20°C): 6 months

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Ion Selective Electrode

Reference Values

Reference Values

25-125 mmol/day

CPT Codes

84133

Last Updated: Thursday, September 5, 2019 03:09:41 AM


Client Services: 503-413-1234