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Test Code GLU.1 GLUCOSE, FASTING OR RANDOM

Important Note

Include: Fasting status of patient.

A fasting glucose is the ADA's preferred screening test for diabetes in non-pregnant adults.

Additional Codes

N.GLUCOSE

GLU.1.FHC

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Specimen Type: Serum or Plasma 
Container/Tube: SST or Lithium Heparin 

Acceptable: Red top 
Specimen Volume: 1 mL (minimum 0.5) 
Collection Instructions:  

  1. Allow specimen to clot completely if a serum tube (SST) was used. 
  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube. 
  3. Properly label tube with patient's name, DOB, requisition number and type of tube, i.e. LiHep or NaHep etc. 

Alternate Specimens: Sodium fluoride/potassium oxalate (gray top tube).

Specimen Rejection

1. Exceeds stability requirements

2. Unlabeled/mislabeled specimen

Maximum Laboratory Time

24 - 48 hours

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 6 days poured off

 

 

Test Classification and CPT Coding

82947

Day(s) Test Set Up

Daily

Reference Ranges

Glucose           mg/dL
Newborn         40 - 80
1 mo +         70 - 100
Critical Adult (age 18 years+)  :  REFER TO LH-W CRITICAL VALUES POLICY  
Critical Newborn (age 0-30 days) :REFER TO LH-W CRITICAL VALUES POLICY  
Critical Infant (age 31 days to 18 years) : REFER TO LH-W CRITICAL VALUES POLICY