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Expected Turnaround Time
3 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Serum (EDTA or heparin plasma may be used.)
Volume
1 mL
Minimum Volume
0.2 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube or gel-barrier tube for serum; lavender-top (EDTA) tube or green-top (heparin) tube for plasma
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Causes for Rejection
Hemolysis
Test Details
Use
5′ nucleotidase is used to investigate the origin of increased serum alkaline phosphatase. It is a liver-related enzyme used to work up cholestatic/biliary obstruction. It parallels the increases of alkaline phosphatase and leucine aminopeptidase in hepatobiliary diseases, but is not usually elevated in skeletal disorders such as Paget disease of bone. It is increased with metastatic neoplasia in liver and in primary biliary cirrhosis, biliary obstruction from calculi and tumor.
Methodology
Kinetic − 340 nm
Reference Interval
See table.
Age | Male (IU/L) | Female (IU/L) |
|---|---|---|
0 to 1 y | 0−6 | 0−18 |
2 to 12 y | 0−7 | 0–7 |
13 to 17 y | 0−5 | 0−5 |
18 to 30 y | 0–5 | 0–7 |
31 to 50 y | 0−10 | 0−10 |
51 to 70 y | 0−11 | 0−11 |
71 to 80 y | 0−13 | 0−13 |
>80 y | 0−18 | 0−15 |
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 001701 | 5' Nucleotidase | 1690-7 | 001701 | 5' Nucleotidase | IU/L | 1690-7 |
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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf