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HelpTest Code GLF Glucose, Fasting, Plasma or Serum
Methodology
Hexokinase or Glucose Oxidase
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a grey-top (potassium oxalate/sodium fluoride)
tube(s) from a fasting patient (12-14 hours). Spin down and send 1
mL (pediatric: 0.2 mL) of potassium oxalate/sodium fluoride
plasma.
Note: Label specimen appropriately
(plasma).
Serum
Draw blood in a serum gel tube(s) from a fasting patient (12-14
hours). Spin down and send 1 mL (pediatric: 0.2 mL) of
serum.
Note: Label specimen appropriately
(serum).
Specimen Stability Information
|
Specimen Type |
Temperature |
Time |
|
Serum |
RT, spun |
8 hrs |
|
Refrigerated, spun |
72 hrs |
|
|
Plasma, potassium oxalate/NaF |
RT, spun |
24 hrs |
|
Refrigerated, spun |
72 hrs |
Reference Values
|
Age |
Male and Female (mg/dL) |
|
0 days |
40 – 60 |
|
1 day – 2 years |
60 – 110 |
|
>2 year |
70 – 100 |
Critical Values;
Newborn (0 -1 month) : <30 mg/dL or >300
mg/dL
Non Newborn (>1month) : <40 mg/dL or
>400 mg/dL
Reject Due To
|
Hemolysis |
Mild: |
ok |
Gross: |
ok |
|
Lipemia |
Mild: |
ok |
Gross: |
ok |
|
Icterus |
Mild: |
ok |
Gross: |
ok |
Day(s) Test Set Up
Monday through Sunday
CPT Coding
82947
Performing Laboratory
Huntsville Hospital Laboratory/Madison Hospital Laboratory
LOINC Coding
| Test Name | LOINC |
|---|---|
|
Glucose, Fasting, Plasma or Serum |
1558-6 |