Glucose, Fasting, Serum
Test Code
GLUF
Description
Fasting Blood Glucose measures the amount of glucose in your blood after you fast, or don't eat or drink anything (except water), for at least eight hours. It's a common and safe way to check for prediabetes, diabetes, or gestational diabetes.
Collect
Gray top tube [NaF].
Plain red top or SST tube also acceptable.
Patient Prep
Patient should be fasting for 8-14 hours prior to blood collection.
Pediatric Collection
Minimum volume: 0.1 mL serum or plasma
Storage Transport Temp
Offsite: Send frozen serum or plasma Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
Stability after cell separation:
8 hours at at RT (15-25°C)
72 hours refrigerated at 2-8°C
>24 hours frozen at -20°C Fluoride preserved plasma samples stable at RT (15-25°C) for 72 hours
Performed
Monday - Friday
Methodology
Hexokinase
Turnaround Time
4 hour routine, 1 hour STAT
Department
Core Lab
Synonyms
Hexokinase (Glucose, fasting, serum);Plasma Glucose;GLUFX
Study Offerings
Not offered
Reference Interval
| Glucose, fasting |
Human |
|
|
Male |
Female |
|
|
mg/dL |
||
|
1 week - 11 months |
70-123 |
55-114 |
|
1 year - 17 years |
56-145 |
56-144 |
|
18+ years |
65-110 |
65-110 |
CPT Code
82947
New York Approved
FDA Approved or Cleared
FDA
Approved or Cleared