Metanepharines; Normetanephrines; Total Metanepharines
Test is useful in the evaluation of pheochromocytoma.
It is preferable for the patient to be off medications for three days prior to collection. Patient should avoid tobacco, tea, coffee, for three days prior to specimen collection. Common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Medications which are alpha agonists (Aldomet), alpha blockers (Dibenzyline) should be avoided 18-24 hours prior to specimen collection
5.0 mL Urine aliquot from a well mixed 24 hour Urine Collection in a Plastic Container
Preserved Urine
10 days Ambient
14 days Refrigerated
90 days Frozen
Unpreserved Urine
Unacceptable Ambient
Unacceptable Refrigerated
30 days Frozen
Order must include the patients age on Order and Urine Vial
1. When starting the 24-hour period, urinate and discard (throw-away) this specimen. NOTE THE TIME
2. From that time on, collect all urine by urinating into a clean container and transfer into the provided container.
DO NOT URINATE DIRECTLY INTO CONTAINER.
3. Try to pass the last urine just prior to the end of the 24 hour period. Add this urine into the container.
4. Urine Specimen should be kept refrigerated during and after collection.
Printable Patient Collection Instructions
English 24 Hour Urine Collection
Spanish 24 Hour Urine Collection
Burmese 24 Hour Urine Collection
Arabic 24 Hour Urine Collection
1.5 mL Urine
Metanephrines, 24-Hour Urine | ||
Age | Reference Range | UOM |
3 months-4 years | 25-117 | mcg/24 h |
5-9 years | 11-139 | mcg/24 h |
10-13 years | 51-275 | mcg/24 h |
14-17 years | 40-189 | mcg/24 h |
18-29 years | 25-222 | mcg/24 h |
30-39 years | 36-190 | mcg/24 h |
40-49 years | 58-203 | mcg/24 h |
≥50 years | 90-315 | mcg/24 h |
Normetanephrines, 24-Hour Urine | ||
3 months-4 years | 54-249 | mcg/24 h |
5-9 years | 31-398 | mcg/24 h |
10-13 years | 67-503 | mcg/24 h |
14-17 years | 69-531 | mcg/24 h |
18-29 years | 40-412 | mcg/24 h |
30-39 years | 35-482 | mcg/24 h |
40-49 years | 88-649 | mcg/24 h |
≥50 years | 122-676 | mcg/24 h |
Metanephrines, Total 24-Hour Urine | ||
3 months-4 years | 79-345 | mcg/24 h |
5-9 years | 49-408 | mcg/24 h |
10-13 years | 110-714 | mcg/24 h |
14-17 years | 107-741 | mcg/24 h |
18-29 years | 94-604 | mcg/24 h |
30-39 years | 115-695 | mcg/24 h |
40-49 years | 182-739 | mcg/24 h |
≥50 years | 224-832 | mcg/24 h |
Test is useful in the evaluation of pheochromocytoma.
3 to 5 days
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