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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
POTASSIUM, 24 HOUR URINE |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2889 Geisinger Epic ID: 14408 | |
SPECIMEN COLLECTION |
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Specimen type: |
24-hour urine | |
Preferred collection container: |
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Specimen required: |
5 mL aliquot of urine; minimum 1 mL. | |
Special notes: |
Urine with preservatives is not acceptable. Mix well. Estimate total collection volume from 24-hour urine container. Remove required aliquot. Record total volume on both aliquot tube and request slip (if applicable). | |
| SPECIMEN PROCESSING |
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Transport temperature: |
Refrigerated. | |
Specimen stability: |
Room temperature/refrigerated: 14 days. | |
Rejection criteria: |
Urine containing preservatives is not acceptable. | |
TEST DETAILS |
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Reference interval: |
Urine potassium - 25-120 mmol/24 hours. | |
CPT code(s): |
84133 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Potassium - 24-hour urine, 24-hour total volume | |
Methodology: |
Spectrophotometric (Colorimetric) |
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Synonyms: |
K24
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Clinical significance: |
Urinary excretion of potassium is increased in primary aldosteronism. It is often increased in dehydration and in salicylate toxicity. Decreased levels are seen in malabsorption. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |