G

Collection Tube Abbreviations

  RT  =  Plain Red top   GYT  =  Gray top   RBL  =  Royal Blue top
  RHalo = Red Halo   YT  =  Yellow top   PT  =  Pink top
  BLT  =  Blue top   GRN  =  Green top   PPT  =  Pearl top
  LT  =  Lavender top   SGRN  =  Special Green   GHalo = Green Halo
Test
(TEST CODE)
Lab
Section
Special
Requirements
Reference Ranges and Critical Values Testing Schedule and Expected
Turnaround
Time
G6PD Screen 
(G6PD)
Heme 1 LT or 1 GRN   Normal activity Tues & Thurs
   0800-1300

Result: 24 hrs 
G-6PD Quantitative Ref 5 ml blood, 1 YT, 1 GRN or 1 LT ARUP Test Directory Mailout: 5-7 days
Gabapentin
(GABA)
Ref 10 ml blood, a large RT ARUP Test Directory Mailout: 5-7 days
Gamma Glutamyl Transferase  
(GGT)
Chem See GGT
   
Gastric Analysis  Ref 10 ml gastric aspirate  ARUP Test Directory Mailout: 5-7 days
Gastrin
(GASTR)
Ref 6 ml blood, 1 RT
ARUP Test Directory Mailout: 5-7 days
Gonorrhea (GC) Culture
(GCCLT)
Micro Swab in Amies with charcoal transport media (green cap)   

Negative

Physician will be called for cultures growing Neisseria gonorrhoeae 
Daily
Result: 48-72 hrs.
Gentamicin 
Peak (GENTP)
Trough (GENTT)
Random (GENTR)
Chem 5 ml blood, 1 Light Green

See TDM Guidelines
Random: N/A
Peak: 5-10 g/mL

Trough: 1-2 g/mL
Critical Value: >10 g/mL 
24 hrs/ 7 days
Results: 2 hrs
STAT: 1 hr
GGT
Adults (GGT)
Neonates (GGTP)
Chem Adults: 5 ml blood, 1 Light Green 

Neonates: 1 green tube
Adult: 7 - 50 IU/L

Pediatric:  34 - 263 u/L

 

24 hrs/ 7 days
Results: 2 hrs
STAT: 1 hr
Giardia lamblia Ref

Stool transported in PVA and 10% Formalin collection set.

(pink and blue cap)

(Must be filled to fill line or specimen will be rejected.)

Test performed at SHD 

Negative

Physician will be called with Positive results. 

Daily

Results: Upon receipt from ADH 
Gliadin Antibodies (GLID) Ref 10 ml blood, 2 Gold Top ARUP Test Directory Mailout: 5-7 days
Glomerular Basement Membrane Antibody Panel
(GBMP)
Ref 10 ml blood, 1 large Gold Top
Separate serum from cells A
SAP
ARUP Test Directory Mailout: 5-7 days
Glucagon
(GLCG)
Ref 4 ml blood, 1 LT with 200 L aprotinin. Separate plasma from cells ASAP and freeze.  Special collection tubes available from ARUP.  ARUP Test Directory Mailout: 5-7 days
Glucose, Body Fluids
(FLGLU)
Chem 0.5 ml CSF or fluid   CSF: 40 - 70 mg/dL
Reference ranges for other body fluids have not been established.
24 hrs/ 7 days
Results: 2 hrs
STAT: 1 hr
DKA's 15-30 min
Glucose, Pediatric
(GLUCP)
Chem 1 green bullet D1:    50 - 100 mg/dL
≥D2:    70 -105 mg/dL

Critical Values:
<45 or >180

24 hrs/7 days
Results:

  Routine: 1 hr
  STAT: 15 min
Glucose, Adult
Random (non-fasting)

(GLUC)

Fasting
(FBS)

Chem
 
5 ml blood, 1 Light Green 70-110 mg/dL

Critical Values:

<50 or >450 mg/dL
24 hrs/ 7 days
Results: 2 hrs
STAT: 15-30 min
Glucose Tolerance Test Panel (GTT3)
Initial fasting (FGTT)
1 hour sample (1GTT)
2 hour sample (2GTT)
3 hour sample (3GTT)
Chem 3 ml blood, 1 GYT at selected times.  Interpretive report
A separate requisition must accompany each sample and specify time interval.
M-F
Glucose, Urine
(UGLUC)
Chem Chem Random or Timed urine; 24 hr in Type I bottle Random: negative
Timed: <0.5 g/24hr
24 hrs/ 7 days
Results: 2 hrs
STAT: 30 min -1 hr
Glucose-6-Phosphate
(G6PD)
Heme See G6PD Screen    
Glutamic Acid Decarboxyase Antibody
(GADA)
Ref 6 ml blood, 1 Gold Top ARUP Test Directory Mailout: 5-7 days
Glycosylated Hemoglobin
(HBA1C)
Chem See Hgb A1C   M,W,F only
Results: Same day
GM-1 Antibody Panel
(GM1P)
Ref 5 ml blood, 1 Gold Top  ARUP Test Directory Mailout: 5-7days
Gold Ref 7 ml blood, royal blue top.  Transport serum in metal free vial Mayo Reference Services Mailout: 1 week
GOT
 
Chem  See AST    
GPT
 
Chem See ALT    
Group A Strep Antigen Throat Screen
(SGRA1)
Micro Swab transported in LQ Stuart media (red cap)

Negative

Physician will be called with Positive results. 

Daily

Results: Same day
 
Group B Strep Genital Screen Culture
(GNSTR)
Micro Vaginal or anorectum swab in Amies transport media (white cap) Negative Daily
Results:
72 hrs
Group & Type   See ABO Group & Rh Type
 
   
Growth Hormone
(HGH1)
Ref 5 ml blood, 1 Gold Top ARUP Test Directory Mailout: 5-7days

Updated: 02/27/2014

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