| CODE | TEST | CPT CODE | SPECIMEN REQUIREMENTS / REFERENCE RANGES |
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| 4027, NBLD0044 | Aldosterone 24 Hour Urine by Hydrolysis, Extraction, Radioimmunoassay |
82088 |
5.0 mL aliquot of a well-mixed and measured 24-hour urine (1.0 mL minimum). Collect urine with 10 grams of boric acid at start of collection to maintain a pH below 7.5. Refrigerate during and after collection. Record total volume on test request form and urine vial. Refrigerate or freeze as noted below. If frozen, THIS TEST REQUIRES ITS OWN FROZEN ALIQUOT. NOTE: The drug Lasix will affect the test. Stability: REFT - 7 days Frozen - 14 days |
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