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HelpTest Code AST Aspartate Transaminase
Specimen Requirements
Submit only one of the followings
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL
Minimum Volume: 0.5 mL Serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
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Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5mL
Minimum Volume: 0.5mL plasma
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum/Plasma |
|---|---|
| Ambient: | 4 days |
| Refrigerate: | 7 days |
| Frozen: | 12 weeks |
Reference Interval
| Age | Male (U/L) | Female (U/L) |
|---|---|---|
| 0 – 14 days | 23 – 186 | 23 – 186 |
| 15 days – <1 yr | 23 – 83 | 23 – 83 |
| 1 – 6 yrs | 26 – 55 | 26 – 55 |
| 7 – 11 yrs | 21 – 41 | 22 – 41 |
| 12 – 18 yrs | 18 – 40 | 17 – 33 |
| ≥19 yrs | 6 – 35 | 6 – 30 |
Days and Times Performed
24 hours, TAT 1 day
Methodology
Enzymatic (NADH with P-5'-P)
Service Code
31016
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of Liver Profile. Diagnosis of Acute Myocardial Infarct.
Alias
AST, SGOT