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Test Code LAB81 Glucose, Plasma or Serum

Reporting Title

Glucose

Methodology

Roche Diagnostics - RMH, BH, BING, DCC, DH, DMH, GCC, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMH, SH, WECC

 

 

Performing Laboratory

OhioHealth Laboratory Services - RMH, BH, BING, DCC, DH, DMH, GCC, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMH, SH, WECC Core Laboratories

Specimen Requirements

Collection Instructions:

1. Serum and Plasma gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.

 

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.

Note:  

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable..

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

 

Alternate: 

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

If only a glucose test is ordered and no other tests:

Preferred:

Draw blood in a  grey-top (potassium oxalate/sodium fluoride) tube. Send whole blood.
Note:  1.  Label specimens appropriately to indicate specimen timing.

Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 72 hours
  Ambient  8 hours
  Frozen  3 days

SODIUM FLORIDE TUBE STABLE FOR 3 DAYS AT ROOM TEMPERATURE

Specimen Transport Temperature

Refrigerate/Ambient OK/Frozen OK

Reference Values

Fasting glucose ranges

0-2 days:  40-60 mg/dL

3 days-1 year:  50-80 mg/dL

2-12 years:  60-99 mg/dL

≥13 years:  65-99 mg/dL

 

Critical values:

0-2 days:  <25 mg/dL or >145 mg/dL

3 Days up to 2 Years: <40 mg/dL or >400 mg/dL

≥2 years: <56 mg/dL or >400 mg/dL

 

Impaired fasting glucose:  100-125 mg/dL

Indicative of diabetes:  >126 dg/mL

 

Alerting category: Always called within 1 hour

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

82947