| Common test name | Primary test name | Specimen | Container | Referred test | Patient cost | Comments/Instructions |
|---|---|---|---|---|---|---|
| G6PD Assay | G6PD Assay | Blood | EDTA Tube 4 ml | Yes | No | |
| G6PD screen | Glucose-6-Phosphate Dehydrogenase Deficiency Screen | Blood | EDTA Tube 4 ml | No | No | |
| Gabapentin | Gabapentin | Blood | Plain Tube 10 ml | Yes | No | |
| GAD antibodies | GAD antibodies | Blood | Serum Separator Tube (SST) | Yes | No | Specimen must be Frozen. Venepuncture |
| Galactoscreen | Galactoscreen | Blood | Lithium Heparin Tube | Yes | Yes | DO NOT CENTRIFUGE Venepuncture. |
| Gall Bladder Calculi | Gall Bladder Stones | Stone | **Sterile container | Yes | No | |
| Gall Bladder Stones | Gall Bladder Stones | Stone | **Sterile container | Yes | No | |
| Gamma Glutamyl Transferase, (GGT) | Gamma Glutamyl Transferase, (GGT) | Blood | Serum Separator Tube (SST) | No | No | |
| Ganglioside GD1b antibodies | Anti-Ganglioside GD1b antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Ganglioside GM1 antibodies | Anti-Ganglioside GM1 antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Gastric Aspirate for Group B Streptococci | Gastric aspirate, Microscopy and culture | Aspirate, gastric | Sterile container | No | No | Gastric aspirate in sterile container. In infants swabs of gastric contents are satisfactory. Del... (more) |
| Gastric aspirate, Microscopy and culture | Gastric aspirate, Microscopy and culture | Aspirate, gastric | Sterile container | No | No | Gastric aspirate in sterile container. In infants swabs of gastric contents are satisfactory. Del... (more) |
| Gastric biopsy for Helicobacter pylori | Gastric biopsy for Helicobacter pylori | Gastric biopsy - Urease test | Sterile container | No | No | |
| Gastric Lavage, for AFB Culture | Gastric Lavage, for AFB Culture | Lavage fluid | Gastric lavage container | No | No | Three lavage fluid specimens collected. Contact the microbiology laboratory for specimen container... (more) |
| Gastric Parietal Cell antibodies | Anti-Parietal Cell antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Gastrin | Gastrin | Blood | Serum Separator Tube (SST) | No | No | Avoid haemolysis; haemolysed samples are unsuitable. Must be received in laboratory within 5 hours ... (more) |
| Gastrointestinal Peptide | Gastrointestinal Peptide | Blood | Special collection kit; contact laboratory. | Yes | No | Specimen must be frozen Requires collection into special tube containing Trasylol. |
| GBM antibodies | Anti-GBM antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| GCT | Glucose Challenge Test | Blood | Fluoride oxalate Tube 2 ml | No | No | This test is only performed on pregnant women. Blood glucose levels should be checked using a glucos... (more) |
| GD1b antibodies | Anti-Ganglioside GD1b antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Gene Rearrangement Analysis | Gene Rearrangement Analysis | Tissue | Urine/Specimen container 50ml | No | No | DO NOT USE FIXATIVE. Deliver to laboratory within 1 hour Collected by referring clinician. |
| Genetic Testing | Hereditary Non Polyposis Coli | Blood | EDTA Tube 4 ml | Yes | No | |
| Genetic testing for Cystic Fibrosis | Cystic Fibrosis testing | Blood | EDTA Tube 4 ml | Yes | No | |
| Gentamicin | Gentamicin | Blood | Serum Separator Tube (SST) | No | No | Pre does level prefered, post dose levels are not rourinely performed. Pre dose - collected 5-... (more) |
| German Measles antibodies | Rubella Virus antibodies | Blood | Serum Separator Tube (SST) | No | Yes | Please indicate if testing is for acute infection or detection of immunity. Venepuncture. |
| Gestational Diabetes Screening Test | Glucose Challenge Test | Blood | Fluoride oxalate Tube 2 ml | No | No | This test is only performed on pregnant women. Blood glucose levels should be checked using a glucos... (more) |
| GGT | Gamma Glutamyl Transferase, (GGT) | Blood | Serum Separator Tube (SST) | No | No | |
| Giardia intestinalis antigen | Faeces, Giardia and Crytosporidium antigens | Faeces (random X 1) | Faeces container | No | No | Specimen must arrive in laboratory within 24 hours of collection. Parasite kits (for clinicians) a... (more) |
| Gilbert's Disease Gene Testing | Gilbert's Disease Gene Testing | Blood | EDTA Tube 4 ml | Yes | No | |
| Gingival swab | Oral Swab, Hard Palate or Soft Palate | Swab of mouth | Transswab- swab in transport medium | No | No | A Virocult swab must be used if viral investigations are requested. Mouth and gums: Use a Transwab... (more) |
| Glandular Fever Serology | Epstein Barr Virus antibodies | Blood | Serum Separator Tube (SST) | No | Yes | |
| Gliadin antibodies | Anti-Gliadin antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Glomerular Red Blood Cells, Urine | Urine, Mid-stream for Microscopy and culture | Urine, midstream specimen | Urine/Specimen container 50ml | No | No | Hold urine at 4º pending transport to the laboratory. PATIENT INSTRUCTIONS: FEMALE 1. Write your... (more) |
| glu | Glucose, Random | Blood | Fluoride oxalate Tube 2 ml | No | No | |
| Glucagon | Glucagon | Blood | Tube containing Trasylol, available from laboratory | Yes | No | Fasting specimen required. (fast overnight) Venepuncture. |
| Glucose Challenge Test | Glucose Challenge Test | Blood | Fluoride oxalate Tube 2 ml | No | No | This test is only performed on pregnant women. Blood glucose levels should be checked using a glucos... (more) |
| Glucose screening Test | Glucose Challenge Test | Blood | Fluoride oxalate Tube 2 ml | No | No | This test is only performed on pregnant women. Blood glucose levels should be checked using a glucos... (more) |
| Glucose Tolerance Test | Glucose Tolerance Test | Blood (X 3) | Fluoride oxalate Tube 2 ml | No | No | NB: Some clinicians request GTT & insulin levels, in which case a lithum heparin tube (on ice) must ... (more) |
| Glucose, Fasting | Glucose, Fasting | Blood | Fluoride oxalate Tube 2 ml | No | No | Fasting specimen required (10-hour overnight fast) Venepuncture. |
| Glucose, Random | Glucose, Random | Blood | Fluoride oxalate Tube 2 ml | No | No | |
| Glucose-6-Phosphate Dehydrogenase Deficiency Screen | Glucose-6-Phosphate Dehydrogenase Deficiency Screen | Blood | EDTA Tube 4 ml | No | No | |
| Glutamic Acid Decarboxylase antibodies | GAD antibodies | Blood | Serum Separator Tube (SST) | Yes | No | Specimen must be Frozen. Venepuncture |
| Glycated Haemoglobin | Hba1c | Blood | EDTA Tube 4 ml | No | No | |
| Glycogen Tissue | Glycogen Tissue | Tissue | Special Container - Contact Laboratory | Yes | No | |
| Glycoprotein, Alpha Chain | Alpha Glycoprotein Subunit | Blood | Serum Separator Tube (SST) | Yes | No | |
| Glycosylated haemoglobin | Hba1c | Blood | EDTA Tube 4 ml | No | No | |
| GM1 antibodies | Anti-Ganglioside GM1 antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Gold | Gold | Blood | EDTA Tube 4 ml | Yes | No | |
| Gonorrhoeae PCR | Neisseria gonorrhoeae, Detection by PCR | Urine/Specimen container 50ml | No | No | NG PCR cannot be performed on eye swabs, throat swabs or rectal swabs, collection of a swab for cult... (more) | |
| GQ1b antibodies | Anti-GQ1b antibodies | Blood | Serum Separator Tube (SST) | No | No | |
| Groin swab- MRSA | MRSA Screen | Swab, nose, perineum, and other sites, if required | Transswab- swab in transport medium | No | No | If three sets of swabs are required for clearance, collect on three consecutive days, not all on one... (more) |
| Group and Hold | Group and Hold | Blood | EDTA Tube 6ml | No | No | Group & Hold and Crossmatch specimens can only be held for 3 (three) days. BUT if the patient is NOT... (more) |
| Group and Save | Group and Hold | Blood | EDTA Tube 6ml | No | No | Group & Hold and Crossmatch specimens can only be held for 3 (three) days. BUT if the patient is NOT... (more) |
| Group B streptococcus screen | Group B streptococcus screen | Low Vaginal swab | Transswab- swab in transport medium | No | No | Rectal swab may also be processed. Low vaginal swab |
| Growth Hormone, (hGH) | Growth Hormone, (hGH) | Blood | Serum Separator Tube (SST) | No | No | |
| GTT | Glucose Tolerance Test | Blood (X 3) | Fluoride oxalate Tube 2 ml | No | No | NB: Some clinicians request GTT & insulin levels, in which case a lithum heparin tube (on ice) must ... (more) |
| Gum swab | Oral Swab, Hard Palate or Soft Palate | Swab of mouth | Transswab- swab in transport medium | No | No | A Virocult swab must be used if viral investigations are requested. Mouth and gums: Use a Transwab... (more) |