Test List: G
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G6PD
Code
G6PD
Sample Reqs
A
Special Instructions
Gabapentin
Code
GABA
Sample Reqs
B [4]
Special Instructions
[4] Send to the laboratory without delay.
Galactomanan (Aspergillus Antigen)
Code
SGAL
Sample Reqs
B
Special Instructions
Galactose-1-Phosphate Uridyltransferase
Code
GAL1
Sample Reqs
H [5] [6]
Special Instructions
[5] Do not send sample to the laboratory between Friday noon and Monday morning.
[6] Contact the Referrals Department before taking and sending sample to the laboratory.
Galactosidase – Alpha*
Code
GALA
Sample Reqs
J
Special Instructions
* Sample must reach TDL Referrals Dept. urgently, to be tested within 24 hours of collection. Monday–Thursday only. Referrals to send immediately
Gall Stone Analysis
Code
RSTA
Sample Reqs
STONE
Special Instructions
Gamma GT
Code
GGT
Sample Reqs
B
Special Instructions
Ganglionic Acetylcholine Receptor Antibodies
Code
GACA
Sample Reqs
B
Special Instructions
Ganglioside GM1, GD1B, GQ1B Abs
Code
GANG
Sample Reqs
B
Special Instructions
Gardnerella vaginalis by PCR
Code
GVPC
Sample Reqs
FCRU / PCR / TPV
Special Instructions
Gardnerella vaginalis
Code
GVPC
Sample Reqs
TPV
Special Instructions
Gastric Cancer NGS Panel – full sequencing across 15 genes + deletions/duplications
Code
GENE
Sample Reqs
A
A
[9] [11] Requires patient informed consent
Special Instructions
[9] Clinical history must be provided.
[11] Patient consent required. Consent Form can be found at the back of this guide.
Gastric Parietal Autoantibodies
Code
GASP
Sample Reqs
B
Special Instructions
Gastrin
Code
GAST
Sample Reqs
B (Frozen)
Special Instructions
Gaucher Disease full gene sequencing
Code
GDMA
Sample Reqs
A
[40]
Special Instructions
[40] Informed Consent is required for these tests.
Gaucher Disease – 8 common mutations
Code
GENE
Sample Reqs
A
[9]
Special Instructions
[9] Clinical history must be provided.
Genetic Reproductive Profile (Male) – see profiles
Code
GRP
Sample Reqs
A
H [9]
Special Instructions
[9] Clinical history must be provided.
]
Gentamicin Assay
Code
GENT
Sample Reqs
B [4]
Special Instructions
[4] Send to the laboratory without delay.
GI Endoscopic – Biopsy: Bile duct biopsy
Code
HIS1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Colonic Polyp
Code
HIS1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (1 specimen)
Code
HIS1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (10-15 specimens)
Code
10H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (2 specimens)
Code
2H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (3 specimens)
Code
3H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (4 specimens)
Code
4H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (5 specimens)
Code
5H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (6 specimens)
Code
6H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (7 specimens)
Code
7H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (8 specimens)
Code
8H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Endoscopic Biopsy (9 specimens)
Code
9H1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Liver Biopsy – Medical
Code
HIS5
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Liver Biopsy – Tumour
Code
HIS3
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Omental Biopsy
Code
HIS3
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Pancreatic Biopsy
Code
HIS1
Sample Reqs
Special Instructions
GI Endoscopic – Biopsy: Perianal Biopsy
Code
HIS1
Sample Reqs
Special Instructions
GI Resection – Large: Biliary Resection
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Colon
Code
HIS5+HIS2
Sample Reqs
Special Instructions
GI Resection – Large: Distal Pancreatectomy
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Gastrectomy
Code
HIS5+HIS2
Sample Reqs
Special Instructions
GI Resection – Large: Gastric Wedge Resection
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Ileoanal Pouch Resection
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Ileostomy
Code
HIS4
Sample Reqs
Special Instructions
GI Resection – Large: Ileum
Code
HIS3
Sample Reqs
Special Instructions
GI Resection – Large: Large Bowel Resection – Benign / Malignant
Code
HIS5+HIS2
Sample Reqs
Special Instructions
GI Resection – Large: Liver Wedge Resection
Code
HIS4
Sample Reqs
Special Instructions
GI Resection – Large: Oesophagectomy
Code
HIS5+HIS2
Sample Reqs
Special Instructions
GI Resection – Large: Partial Hepatectomy
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Small Bowel Resection – Benign / Malignant
Code
HIS5
Sample Reqs
Special Instructions
GI Resection – Large: Whipple’s Procedure / Pancreatectoduodenectomy
Code
HIS5+HIS5
Sample Reqs
Special Instructions
GI-Resection – Small: Anal Fistula
Code
HIS215
Sample Reqs
Special Instructions
GI-Resection – Small: Appendix
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Endo Mucosal Resection (EMR / ESD)
Code
HIS3
Sample Reqs
Special Instructions
GI-Resection – Small: Gallbladder
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Haemorrhoidectomy
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Hernia Sac
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Meckel’s Diverticulum
Code
HIS3
Sample Reqs
Special Instructions
GI-Resection – Small: Mesentery
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Perianal Biopsy / Warts
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Pilonidal Sinus
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Polypectomy
Code
HIS2
Sample Reqs
Special Instructions
GI-Resection – Small: Umbilical Lesion
Code
HIS2
Sample Reqs
Special Instructions
Giardia Serology
Code
GIAR
Sample Reqs
B
Special Instructions
Gilbert Syndrome – common UGT1A1 repeat variation
Code
GENE
Sample Reqs
A
[9]
Special Instructions
[9] Clinical history must be provided.
Glaucoma NGS Panel – full gene sequencing across 26 genes
Code
GENE
Sample Reqs
A
A
[9]
Special Instructions
[9] Clinical history must be provided.
Gliadin Antibodies (IgG) (deamidated )
Code
AGAB
Sample Reqs
B
Special Instructions
Globulin
Code
GLOB
Sample Reqs
B
Special Instructions
Glomerular Basement Membrane Abs
Code
AGBM
Sample Reqs
B
Special Instructions
Glucagon
Code
GLUG
Sample Reqs
J [1]
Special Instructions
[1] Contact the laboratory for special sample tubes/containers/instructions.
Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency – full G6PD gene sequencing
Code
GENE
Sample Reqs
A
[9]
Special Instructions
[9] Clinical history must be provided.
Glucose Challenge Test / Mini-GTT
Code
RBGM
Sample Reqs
G
Special Instructions
Collection time (minutes post-glucose): 1 at 60 mins (50gm glucose)
Glucose Tolerance Test (Extended Plus)
Code
GTTX
Sample Reqs
7x G 7x RU
Special Instructions
Collection time (minutes post-glucose): 1 each at 0, 30, 60, 90, 120, 150 and 180 mins
Glucose Tolerance Test (Extended)
Code
GTTE
Sample Reqs
5 x G 5 x RU
Special Instructions
Collection time (minutes post-glucose): 1 each at 0, 30, 60, 90 and 120 mins
Glucose Tolerance Test (Short)
Code
GTTS
Sample Reqs
2 x G 2 x RU
Special Instructions
Collection time (minutes post-glucose): 1 each at 0 and 120 mins
Glucose Tolerance Test / OGTT
Code
GTT
Sample Reqs
3 x G 3 x RU
Special Instructions
Collection time (minutes post-glucose): 1 each at 0, 60 and 120 mins (75gm glucose load)
Glucose Tolerance with Growth Hormone
Code
GTT + GHDF
Sample Reqs
3 x B [35] 3 x G 3 x RU
Special Instructions
[35] Patient should be fasting and resting for 30 mins before sample taking. Samples need handling urgently.
Collection time (minutes post-glucose): 1 each at 0, 60 and 120 mins
Glucose Tolerance with Insulin
Code
GTTI
Sample Reqs
3 x B 3 x G 3 x RU
Special Instructions
Collection time (minutes post-glucose):1 each at 0, 60 and 120 mins
Glucose
Code
RBG
Sample Reqs
G
Special Instructions
Glutamic Acid Decarboxylase Antibodies (GAD 65)
Code
GAD
Sample Reqs
B
Special Instructions
Glutathione (Red Cell)
Code
GLUR
Sample Reqs
H [5]
Special Instructions
[5] Do not send sample to the laboratory between Friday noon and Monday morning.
Glutathione Peroxidase
Code
GLPX
Sample Reqs
H
Special Instructions
Gluten Allergy Profile
Profile details
Gluten single IgE Allergen
Endomysial Abs IgA
Gliadin Abs deamidated IgG
Tissue transglutaminase IgA
HLA DQ2/DQ8
Total IgA
Code
GLUT
Sample Reqs
A B B
Special Instructions
Gluten Sensitivity Evaluation (Coeliac disease antibody)
Profile details
Endomysial IgA
Gliadin deamidated lgG
Total IgA
Tissue Transglutaminase (IgA)
Code
GSA
Sample Reqs
B
Special Instructions
Gluten/Coeliac Profile 2
Code
GSA2
Sample Reqs
A B
Special Instructions
Glycan Determinants
Code
ZZ27
Sample Reqs
B
Special Instructions
Glycogen storage disease type 2 (Pompe) mutation analysis
Code
POMP
Sample Reqs
A
Special Instructions
Gonorrhoea (PCR swab)
Code
SGON
Sample Reqs
PCR
Special Instructions
Gonorrhoea (Thin Prep)
Code
TGON
Sample Reqs
TPV
Special Instructions
Gonorrhoea (Urine)
Code
CGON
Sample Reqs
FCRU
Special Instructions
Gonorrhoea by Culture
Code
GONN
Sample Reqs
CS‡ ‡ ‡
Special Instructions
‡ ‡ ‡ The optimal sample type from the female genital tract is an endocervical swab. Gonorrhoea does not survive well outside the endocervical epithelium; a negative gonorrhoea culture result from a vaginal swab is not reliable for excluding infection.
Granulocyte Immunology
Code
GRIM
Sample Reqs
A A
Special Instructions
Group B Strep
Code
GBS
Sample Reqs
2 x STM
Special Instructions
Growth Hormone (Fasting)
Code
GH
Sample Reqs
B [7] [35]
Special Instructions
[7] Sample should be separated and frozen if sending overnight.
[35] Patient should be fasting and resting for 30 mins before sample taking. Samples need handling urgently.
Gut Hormone Profile
Code
GUTP
Sample Reqs
A A (Frozen within 15 minutes) [41]
Special Instructions
[41] Recommendation for patient to attend Patient Reception for sample taking.
Gynaecology: Cervical Biopsy
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Cervical Polyp
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Cervix
Code
HIS4
Sample Reqs
Special Instructions
Gynaecology: Curettings – Endocervical
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Curettings – Endometial
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Endometrial Biopsy
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Endometrial Pipelle
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Endometrial Polyp
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Fallopian Tube
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Fibroids
Code
HIS3
Sample Reqs
Special Instructions
Gynaecology: Fimbrial Cyst
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: LLETZ and / or Cone Biopsy
Code
HIS4
Sample Reqs
Special Instructions
Gynaecology: Mastoid
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Ovarian Biopsy
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Ovarian Cyst
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Ovarian Pipelle
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Ovaries (Bilateral)
Code
HIS5
Sample Reqs
Special Instructions
Gynaecology: Ovary (Unilateral)
Code
HIS3
Sample Reqs
Special Instructions
Gynaecology: Ovary and Tube (Bilateral)
Code
HIS5
Sample Reqs
Special Instructions
Gynaecology: Ovary and Tube (Unilateral)
Code
HIS4
Sample Reqs
Special Instructions
Gynaecology: Pelvic Mass
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Peritoneal Biopsy
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Placenta
Code
HIS5
Sample Reqs
Special Instructions
Gynaecology: Pouch of Douglas
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Products of Conception
Code
HIS1
Sample Reqs
Special Instructions
Gynaecology: Uterine Polyp
Code
HIS2
Sample Reqs
Special Instructions
Gynaecology: Uterus
Code
HIS4
Sample Reqs
Special Instructions
Gynaecology: Uterus and Cervix
Code
HIS5
Sample Reqs
Special Instructions
Gynaecology: Uterus, Tubes And Ovaries
Code
HIS5
Sample Reqs
Special Instructions
Gynaecology: Vulval Biopsy
Code
HIS1