University of Iowa
Diagnostic Laboratories
(UIDL) Test Directory

319-384-7212 (local)
1-866-844-2522 (toll free)


Potassium, Quantitative Order Code: UK
Order Form: Laboratory Requisition
Specimen:
Urine
Collection Medium:
Urine - 24 hour/timed plastic urine container
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection 
containers.
Minimum:
24 hr collection; no preservative.  Collections other than 24 hr will
not be calculated for Meq/24 hr.
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Analytic Time:
2 hours (upon receipt in laboratory)
Reference Range:
25-125 mEq/24 hr
Methodology:
Ion Selective Electrode
Sample
Processing:
Submit in leakproof container.
Label transport tube with two patient identifiers, date and time of 
collection.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place requisition in bag, seal bag, and tape securely to (urine) 
container.
Transport in cooler with refrigerated coolant packs.
Instructions:
Use no preservative. Submit entire 24 hour collection.  Record date and 
time of collection on requisition.
CPT Code:
84133
 
See Additional Information:
Urine Collection, 24 Hour
Urine Tests Requiring no Preservatives

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Updated: 04/21/2004