Glucose, fasting
Glucose, fasting-109
FBS
Fasting is required prior to sample collection
Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times to prevent clotting
Spin within two (2) hours of sample collection
Lt green plasma separator (PST)
Sodium fluoride (Na Fl) whole blood or plasma
EDTA plasma
Gold:
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
Lavender:
- Spin
- Transfer the plasma to an AHL False Bottom Plasma/Serum Transport Tube labeled as the appropriate plasma type, within two (2) hours of sample collection
Grey:
If a grey top tube will not reach the Central Laboratory within 24 hours of collection, it should be spun down, and the plasma transferred to an AHL False Bottom Plasma/Serum Transport Tube labeled as NaFl plasma.
Additional testing cannot be added on to this sample.
Gold serum separator (SST) tube
Grey Sodium flouride (NaFl) or
False bottom plasma/serum transport vial/tube (AHL)
Serum/plasma:
Refrigerated - 3 days
Ambient - 8 hours
NaFl whole blood:
Ambient - 3 days
- Improper labels (unlabeled or mislabeled)
- Hemolysis (some procedures)
- Improper anticoagulant or ratio
- Delay in transport
- Improper storage temperature affecting results
- Inappropriate timing of collection
- Improper container
- Leaking container resulting in compromised specimen
- Quantity not sufficient (QNS)
Hexokinase
| Age | Range |
| 0 - 24 hours: | 60 - 90 mg/dL |
| 24h - 28 days: | 60 - 90 mg/dL |
| 28d - 18 yrs: | 65 - 99 mg/dL |
| >18 yrs | 70 - 99 mg/dL |
|
*Glucose, newborn |
0 – 4 hrs |
< 35 mg/dL |
>300 mg/dL |
|
*Glucose, pediatric |
5 hrs- 17 yrs |
<54 mg/dL |
>400 mg/dL |
|
*Glucose, adult |
>18 yrs |
<54 mg/dL |
>500 mg/dL |
*Note: No call if collected within 30 minutes of a glucose meter result.