| Source |
Blood |
| Mnemonic |
TNT |
| Specimen Requirements |
1 x 5 mL light green (mint) top PST tube. Gold top SST tube is also acceptable.
0.2 mL heparinized plasma or serum
Minimum Blood Volume for Patients less than 45 kg (100 lb) Including Neonates and Pediatrics
Should be drawn >6 h after the onset of symptoms. |
| Specimen Handling |
STATs from PSC are routed to FMC on weekends/holidays and after RIA regular hours.
Serum from routine samples from PSC on weekends and holidays must be frozen. |
| Additional Information |
|
| Testing Location |
Chemistry-FMC, PLC, RGH & RIA |
|
| Testing Frequency |
Daily |
| Alternate Name(s) |
TNT |
| Reference Interval |
|
Age
|
Male/Female
|
Units
|
|
0-7 days
|
<0.35 |
µg/L
|
|
8-30 days
|
<0.20
|
µg/L
|
|
31-120 days
|
<0.10
|
µg/L
|
|
4 months–150 years
|
<0.03 |
µg/L
|
|
Borderline elevation
|
0.03 - 0.09
|
µg/L
|
|
Clear elevation
|
=/> 0.10
|
µg/L
|
Click here for critical values. |
