G

Collection Tube Abbreviations

Test (TEST CODE)	Lab Section	Special Requirements	Reference Ranges and Critical Values	Testing Schedule and Expected Turnaround Time
G-6PD Quantitative	Ref	5 ml blood, 1 YT, 1 GRN or 1 LT	4.6 - 13.5 U/g Hgb	Mailout: 5-7 days ARUP
G6PD Screen  (G6PD)	Heme	1 YT (Solution A-ACD)	Normal activity	8 am-10 pm
Gabapentin (GABA)	Ref	10 ml blood, a large RT	Interpretive report	Mailout: 5-7 days ARUP
Gamma Glutamyl Transferase   (GGT)	Chem	See GGT
Gastric Analysis	Ref	10 ml gastric aspirate	Hydrogen ion concentration: 10-50 mmol/L	Mailout: 5-7 days ARUP

Gastrin (GASTR)	Ref	6 ml blood, 1 RT Critical frozen.	0-100 pg/mL	Mailout: 5-7 days ARUP
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 GHalo See TDM Guidelines	Random: N/A Peak: 5-10 µg/mL Trough: 1-2 µg/mL Critical Value: >12 µg/mL	24 hrs/ 7 days Results: 2 hrs STAT: 1 hr
GGT Adults (GGT) Neonates (GGT)	Chem / Peds Lab	Adults: 5 ml blood, 1 GHalo  Infants: 1 green tube	5 - 70 IU/L Pediatric:  34 - 263 u/L	24 hrs/ 7 days Results: 2 hrs STAT: 1 hr Peds Lab:    Routine: 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	Ref	10 ml blood, 2 RHalo	Interpretive report	Mailout: 5-7 days ARUP
Glomerular Basement Membrane Antibody Panel (GBMP)	Ref	10 ml blood, 1 large RHalo Separate serum from cells ASAP	Interpretive report	Mailout: 5-7 days ARUP
Glucagon (GLCG)	Ref	4 ml blood, 1 LT with 200 µL trasylol. Separate plasma from cells ASAP and freeze.  Special collection tubes available from ARUP.	40 -130 ng/L	Mailout: 5-7 days ARUP
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)	Peds Lab	1 green or amber bullet tube	D1:    50 - 100 mg/dL ≥D2:    70 -105 mg/dL	24 hrs/7 days Results:   Routine: 1 hr   STAT: 15 min
Glucose, Adult Random (non-fasting) (GLUC) Fasting (FBS)	Chem	5 ml blood, 1 GHalo	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 Initial fasting (FGTT) 1 hour sample (1GTT) 2 hour sample (2GTT) 3 hour sample (3GTT)	Chem	3 ml blood, 1 GYT at selected times with appropriate urine collection.	Interpretive report A separate requisition must accompany each sample and specify time interval. Each sample ordered individually. By appointment for OPC:  call 686-5817.	M-F, 8am-3pm Schedule with lab.
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 (GAD)	Ref	6 ml blood, 1 RHalo	0.00 -1.45 U/mL	Mailout: 5-7 days ARUP
Glycosylated Hemoglobin (HBA1C)	Chem	See Hgb A1C		M,W,F only Results: Same day
GM-1 Antibody Panel (GM1P)	Ref	5 ml blood, 1 RHalo	Interpretive report	Mailout: 5-7days ARUP
Gold	Ref	7 ml blood, royal blue top.  Transport serum in metal free vial	0.0-0.1 mg/L	Mailout: 1 week MAYO
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 RHalo	0.1 - 5.0 ng/mL	Mailout: 5-7days ARUP

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