Granulocyte Concentrate, Transfusion

CERNER / EPIC MNEMONIC: (not orderable on LIS)
DAYS PERFORMED: Arrangements should be scheduled at least 24 hours in advance. Weekdays, 0730-1700; weekends, 0730-1400. Tech "on call" will only perform donations scheduled 24 hours in advance.
TURNAROUND TIME: Donation should take between 2-4 hours. Donor specimen must be completely processed and cross-matched.
SPECIAL INSTRUCTIONS: Requires special approval by Blood Center physician.
CONTAINER TYPE:

Pink top tube

COLLECTION: Special Labeling Requirements: The content of each sample label must include the patient's full name and medical record number, the phlebotomist's initials, the date and time the sample was collected and, for non-LLT draws, the initials of a second medical professional who has confirmed that the sample came from the patient whose name is on the label; the computer label must have this same information plus an accession number and the tests ordered. NOTE:  LLT phlebotomists should write 'LLT' for the second set of initials.
SPECIMEN REQUIREMENTS: Blood
MINIMUM VOLUME: 7 mL
REFERENCE RANGE: Each unit contains at least 1 x 1010 granulocytes.
TEST SYNONYM(S):Leukocyte Concentrate; White Blood Cell Concentrate

Glucose 6-Phosphate Dehydrogenase, Red Blood Cell

CERNER / EPIC MNEMONIC: G6PD
POE DESCRIPTION: RBC 6GPD
CPT CODE: 82955-90
TURNAROUND TIME:

5-7 working days

CONTAINER TYPE: Lavender top (EDTA) tube
SPECIMEN REQUIREMENTS: 7 mL EDTA whole blood
MINIMUM VOLUME:

2.0 mL EDTA whole blood

HANDLING INSTRUCTIONS: Refrigerate at 2°C to 8°C if analysis is delayed.
REFERENCE RANGE:

See Specialty Labs - Search Test Code 1398

TEST SYNONYM(S):G-6-PD Assay; G-6-PD Assay, Blood

Gamma Glutamyl Transpeptidase, Serum

CERNER / EPIC MNEMONIC: GGT
POE DESCRIPTION: GAMMA GLUTAMYL TRANSPEPTIDASE; GGT
CPT CODE: 82977
DAYS PERFORMED: Specimen accepted daily
TURNAROUND TIME: Routine: 8 hours; stat: 1 hour
CONTAINER TYPE:

SSTTM tube

SPECIMEN REQUIREMENTS: Blood (serum)
MINIMUM VOLUME: 0.4 mL blood (0.2 mL serum)
REFERENCE RANGE:

 Male: 12-64 units/L; female: 9-36 units/L

LAST UPDATED:

12-20-2012

TEST SYNONYM(S):GGTP; GT; Gamma Glutamyl Transferase; Gamma GT; Gamma GTP; GGT

Gentamicin

CERNER / EPIC MNEMONIC: GENT PRE; GENT POST; GENT RND
POE DESCRIPTION: GENTAMICIN PRE DOSE; GENT PRE

GENTAMICIN POST DOSE; GENT POST

GENTAMICIN RANDOM LEVEL; GENT RND

CPT CODE: 80170
TEST INFORMATION: Draw peak: 30 minutes after 30-minute infusion; trough: <30 minutes before next dose
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Routine 4 hours; Stat 1 hour
SPECIAL INSTRUCTIONS: Requisition must be marked random pre- or post dose; include date and time specimen drawn.
CONTAINER TYPE: Red top tube - 4 mL
SPECIMEN REQUIREMENTS:

2.0 mL blood (1.0 mL serum)

MINIMUM VOLUME: 1.0 mL blood (0.2 mL serum)
REFERENCE RANGE: Therapeutic: Peak (post): 4-10 µg/mL; trough (pre): 0-2 µg/mL
METHODOLOGY:

Particle-enhanced Turbidimetric Immunoassay (PETIA)

CRITICAL VALUES: >10 µg/mL
TEST SYNONYM(S):Garamycin.; Gentamicin, Post; Gentamicin, Pre; Gentamicin, Random

Glucose Tolerance Test, 1 Hr Gestational Screen

CERNER / EPIC MNEMONIC: GTT-1 HR
POE DESCRIPTION: GLUCOSE TOLERANCE 1 HR; GTT 1 HOUR; GTT-1HR
CPT CODE: 82950
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 8 hours
SPECIAL INSTRUCTIONS:

See Patient Instructions for Glucose Tolerance Test. The patient (at 24-28 weeks of gestation) is given orally a 50 gram solution of glucose. One hour later, the patient's blood is drawn for a glucose assay.

CONTAINER TYPE: Gray top (sodium fluoride) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
MINIMUM VOLUME: 4 mL blood (2 mL plasma)
REFERENCE RANGE: Interpretive information (1 hour after 50 g glucose challenge at 24-28 weeks of gestation): >140 mg/dL Potentially indicative of gestational diabetes mellitus. Confirmation requires 3-hour glucose tolerance test.

Reference: Diabetes Care, 3 0(Supp. 1), S42-S47 (2007).

CRITICAL VALUES: <40, >500
TEST SYNONYM(S):Screening Test for Gestational Diabetes Mellitus

Glucose Tolerance Test, 3 Hr Gestational

CERNER / EPIC MNEMONIC: GTT-3 HR
POE DESCRIPTION: GLUCOSE TOLERANCE 3 HR; GTT-3 HR
CPT CODE: 82952 (x2)
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 8 hours
SPECIAL INSTRUCTIONS: See Patient Instructions for Glucose Tolerance Test,¿A fasting glucose level is drawn from the patient.¿The patient (at 24-28 weeks of gestation) is given orally a 100 gram solution of glucose.¿The patient's blood is drawn again at 1 hour, 2 hours and 3 hours after the administration of glucose for a glucose assay.
CONTAINER TYPE: Gray top (sodium fluoride) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
MINIMUM VOLUME: 2 mL blood (1 mL plasma)
HANDLING INSTRUCTIONS: Refrigerate
REFERENCE RANGE: Interpretive information (after 100 g glucose challenge at 24-28 weeks of gestation): Any two of four glucose values meeting or exceeding the limits below is indicative of gestational diabetes mellitus:

GTT FASTING 95 mg/dL

GTT 1 HR 180 mg/dL

GTT 2 HR 155 mg/dL

GTT 3 HR 140 mg/dL

Reference: Diabetes Care, 3 0(7Supp.1), S42-S47 (2007).

CRITICAL VALUES: <40, >500
TEST SYNONYM(S):Oral Glucose Tolerance Test; Gestational GTT

Glucose, Blood

CERNER / EPIC MNEMONIC: GLU; BG/GLU
POE DESCRIPTION: GLUCOSE; FBS
CPT CODE: 82947
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine: 8 hours; stat: 1 hour; Blood Gas Laboratory: 15 minutes
CONTAINER TYPE:

SSTTM tube or heparinized syringe (Blood Gas Laboratory);  gray (if transport is delayed)

SPECIMEN REQUIREMENTS: Blood (serum or plasma)
MINIMUM VOLUME: 4 mL blood (2 mL serum or plasma)
HANDLING INSTRUCTIONS: Draw in gray top tube if transport of specimen will be delayed. Glucose will drop 5-10 mg/dL/hour in unseparated, room temperature blood if no preservative has been added. SSTTM tubes should be centrifuged as soon as possible after collection. Refrigerate.
REFERENCE RANGE: Interpretive Information:FASTING (>8 hours) 60-99 mg/dL Normal 100-125 mg/dL Potentially indicative of impaired fasting glucose (IFG). Requires confirmation on subsequent day. >126 mg/dL Potentially indicative of diabetes mellitus. In absence of symptoms of unequivocal hyperglycemia, requires confirmation on subsequent day.NON-FASTING >200 mg/dL Potentially indicative of diabetes mellitus. In absence of symptoms of unequivocal hyperglycemia, requires confirmation on subsequent day.

Reference: Diabetes Care, 30(Supp. 1), S42-S47 (2007).

CRITICAL VALUES:

≤ 40, ≥ 500

TEST SYNONYM(S):Blood Sugar; Fasting Blood Sugar; FBS; Sugar

Glucose, Cerebrospinal Fluid

CERNER / EPIC MNEMONIC: C/GLU
POE DESCRIPTION: CSF GLUCOSE
CPT CODE: 82945
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 1 hour
SPECIAL INSTRUCTIONS: Specimen should be delivered as soon as possible in order to avoid a falsely decreased level due to cellular and bacterial utilization. If three tubes are available, tube #2 is used for this test. A request for a plasma glucose should be made at the time of the spinal tap to coincide with the CSF glucose.
CONTAINER TYPE:

CSF collection tubesRed top tube - 10 mLRed top tube - 4 mL

SPECIMEN REQUIREMENTS: Cerebrospinal fluid
MINIMUM VOLUME: 0.2 mL
REFERENCE RANGE: 45-70 mg/dL in fasting patients.  Should be interpreted with simultaneous blood glucose:  CSF glucose is usually 60% to 70% of blood glucose.
TEST SYNONYM(S):Cerebrospinal Fluid Glucose; CSF Glucose

Glucose, Fluid

CERNER / EPIC MNEMONIC: F/GLU
POE DESCRIPTION: FLUID GLUCOSE
CPT CODE: 82945
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 1 hour
SPECIAL INSTRUCTIONS: Must specify fluid type on the requisition.
CONTAINER TYPE:

Red top tube - 10 mLRed top tube - 4 mLSterile 80 mL specimen container

SPECIMEN REQUIREMENTS: Body fluid
MINIMUM VOLUME: 0.2 mL
REFERENCE RANGE: None established
TEST SYNONYM(S):Fluid Glucose

Glucose, Quantitative, Urine

CERNER / EPIC MNEMONIC: RU/GLU (random urine); U/GLU (24-hour urine)
POE DESCRIPTION:

Urine Glucose Random; Urine Glucose Timed

CPT CODE: Random = 82945; Timed = 82945; 81050
TEST INFORMATION: Results are reported as grams of glucose in total volume of urine submitted. Normal range is based on a 24-hour collection.
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 8 hours
SPECIAL INSTRUCTIONS: For timed urine collection, instruct the patient to void at the beginning of the collection period and discard the specimen. Then collect all urine including the final specimen voided at the end of the collection period. Containers must be labeled with patient`s full name, room number, date and time collection started, and date and time collection finished.
CONTAINER TYPE:

Random Sterile 80 ml specimen container24 hour urine container (Bottle #1) with no preservative

SPECIMEN REQUIREMENTS: Random or 24-hour urine
MINIMUM VOLUME: Random urine: 1 mL; Timed urine: Submit entire urine collection to the laboratory.
HANDLING INSTRUCTIONS: Refrigerate during collection.
REFERENCE RANGE: Random urine: none established; Timed urine: 0-800 mg/24 hours
TEST SYNONYM(S):Sugar, Quantitative, Urine; Urine Glucose

Glucose, Two-Hour Postprandial

CERNER / EPIC MNEMONIC: GLU-PP
POE DESCRIPTION: GLUCOSE POSTPRANDIAL 2 HR; GLU-PP; 2 HR PP
CPT CODE: 82947
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine 8 hours; Stat or CSF 1 hour
SPECIAL INSTRUCTIONS: See Patient Instructions for Glucose Tolerance Test. The patient is given orally a 75 gram solution of glucose or allowed an adequate meal which must be completed within 15-20 minutes. Two hours later, the patient's blood is drawn for a glucose assay.
CONTAINER TYPE: Gray top (sodium fluoride) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
MINIMUM VOLUME: 2 mL blood (1 mL plasma)
REFERENCE RANGE: Interpretive information (2 hours after 75g glucose challenge):

<140 mg/dL - Normal </p/>

140-199 mg/dL - Potentially indicative of impaired glucose tolerance (IGT). Requires confirmation on second occasion.

> 200 mg/dL - Potentially indicative of diabetes mellitus. In absence of symptoms of unequivocal hyperglycemia, requires confirmation on second occasion.

Reference: Diabetes Care, 3 0(Supp.), S42-S47 (2007)

CRITICAL VALUES: <40, >500
TEST SYNONYM(S):PP, 2-hour; PP Glucose, Two-Hour

Glutamic Oxaloacetic Transaminase, Serum or Cerebrospinal Fluid

CERNER / EPIC MNEMONIC: SGOT
POE DESCRIPTION: SGOT
CPT CODE: 84450
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine 8 hours; Stat or CSF 1 hour
CONTAINER TYPE:

SSTTM tube; CSF collection tube or red top tube for CSF specimens

SPECIMEN REQUIREMENTS: Blood (serum), cerebrospinal fluid
MINIMUM VOLUME: 0.4 mL blood, 0.2 mL serum, 0.2 mL CSF
REFERENCE RANGE: Blood: 3-44 units/L
TEST SYNONYM(S):AST; GOT

Glutamic Pyruvate Transaminase, Serum

CERNER / EPIC MNEMONIC: SGPT
POE DESCRIPTION: SGPT
CPT CODE: 84460
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine: 8 hours; stat: 1 hour
CONTAINER TYPE:

SSTTM tube

SPECIMEN REQUIREMENTS: Blood (serum)
MINIMUM VOLUME: 0.4 mL blood (0.2 mL serum)
REFERENCE RANGE: 0-40 units/L
TEST SYNONYM(S):ALT; GPT; SGPT

Gastric Aspirate Culture, Anaerobic

CERNER / EPIC MNEMONIC: C ANAEROBE
POE DESCRIPTION: CU ANAEROBIC; C ANAEROBE
CPT CODE: 87075
TEST INFORMATION: Test includes culture for anaerobic organisms. Other isolated organisms (i.e. aerobes, yeast, etc.) may be referred for identification and/or susceptibility testing if medically indicated AND a separate culture procedure has NOT yielded the same organism(s).
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Cultures are examined every 48 hours. Preliminary culture reports available after 48 hours. Culture reports of no growth will be issued after 5 days. Completion of culture reports may take 7-10 days after receipt of the specimen, depending upon the nature of the microorganisms isolated.
SPECIAL INSTRUCTIONS: Avoid exposure to atmospheric oxygen. Specimens should be transported as soon as possible. When transportation is delayed, leave at room temperature. Do NOT refrigerate. The specific anatomic site of the specimen MUST be specified on the order or requisition.
CONTAINER TYPE: BBLTM Port-A-Cul Transport System
COLLECTION: The patient should NOT have eaten within the previous 5 hours. The specimen of choice is an aspirate, NOT a swab. Specimens are to be collected via a nasogastric tube introduced orally or nasally to the stomach. Overlying and adjacent areas must be carefully prepared to eliminate surface (normal flora) anaerobes. Chilled, sterile, distilled water or nonbacteriostatic sterile saline should be used to perform the lavage. The specimen should be placed directly into the BBLTM Port-A-Cul Transport System and the lid secured tightly. Contamination with normal flora from skin or other body sources MUST be avoided since colonizing bacteria not involved in the infectious process may be introduced into the sample.
SPECIMEN REQUIREMENTS: Gastric aspirate
REJECTION CRITERIA: Inappropriate specimen container, insufficient specimen volume, refrigerated specimen, patient older than 5 years of age.
MINIMUM VOLUME: 0.5-5mL, undiluted
HANDLING INSTRUCTIONS: Avoid exposure to atmospheric oxygen. Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature. Do NOT refrigerate. The specimen MUST be processed promptly since organisms die rapidly in gastric washings unless the sample is neutralized.
REFERENCE RANGE: No growth of anaerobic bacteria
LIMITATIONS OF TEST: A specimen received in anaerobic transport devices is not suitable for routine fungal or mycobacterial cultures. If more than three anaerobic isolates are present, the Bacteroides fragilis group, pigmented gram-negative rods (Prevotella and/or Porphyromonas species), Actinomyces species, and Clostridium perfringens will be the only isolates identified. Anaerobic susceptibility testing is NOT performed routinely. Should susceptibility testing be required, call the Clinical Microbiology laboratory at (312)942-5452. Cultures will NOT be performed on specimens from patients older than 5 years of age.
METHODOLOGY: Conventional culture utilizing media specifically formulated for anaerobic isolation.
ADDITIONAL INFORMATION: Gastric aspirates are frequently diluted with saline.
TEST SYNONYM(S):Anaerobic Culture, Gastric Aspirate

Gastric Aspirate, Routine

CERNER / EPIC MNEMONIC: C AERGS
POE DESCRIPTION: CU AEROBIC W GRAM STAIN; C AERGS
CPT CODE: 87071; 87205
TEST INFORMATION: The test includes a direct Gram stain, isolation and identification of microorganisms, and susceptibility testing, if appropriate.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Gram stain: 2 hours after receipt of the specimen in the laboratory. Preliminary culture reports available after 24 hours. Culture reports of no growth will be issued after 72 hours. Completion of culture reports may take 3-4 days after receipt of the specimen when multiple isolates are found.
SPECIAL INSTRUCTIONS: The specific anatomic site of the specimen MUST be specified on the order or the requisition.
CONTAINER TYPE: Sealed sterile container, no preservative
COLLECTION: The patient should NOT have eaten within the previous 5 hours. The specimen of choice is an aspirate, NOT a swab. Specimens are to be collected via a nasogastric tube introduced orally or nasally to the stomach. Overlying and adjacent areas must be carefully prepared to eliminate surface (normal flora) organisms. Chilled, sterile, distilled water or nonbacteriostatic sterile saline should be used to perform the lavage. The specimen should be placed directly into the sterile container and the lid secured tightly. Contamination with normal flora from skin or other body sources MUST be avoided since colonizing bacteria not involved in the infectious process may be introduced into the sample.
SPECIMEN REQUIREMENTS: Gastric aspirate
REJECTION CRITERIA: Inappropriate specimen container, insufficient specimen volume, refrigerated specimen, patient older than 5 years of age.
MINIMUM VOLUME: 1 mL
HANDLING INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature.
METHODOLOGY: Conventional culture
ADDITIONAL INFORMATION: Gastric aspirates for aerobic bacteria are cultured from newborns ONLY. Gastric aspirates submitted for routine culture from patients older than 5 years of age are unacceptable and will NOT be cultured.

Genital Culture, Routine

CERNER / EPIC MNEMONIC: C GENITL; C GENITLGS
POE DESCRIPTION: CU GENITAL W GRAM STAIN; C GENITLGS

CU GENITAL; C GENITL

CPT CODE: 87071; 87205
TEST INFORMATION: The test includes isolation and identification of microorganisms; susceptibility testing, if appropriate. A direct Gram stain is performed ONLY if specifically requested. A Gram stain is highly recommended if bacterial vaginosis is suspected.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Gram stain: 2 hours after receipt of the specimen in the laboratory. Preliminary culture reports available after 24 hours. Culture reports of no growth will be issued after 72 hours. Completion of culture reports may take 3-4 days after receipt of the specimen when multiple isolates are found.
CONTAINER TYPE:

Sealed sterile containerCopanSwabFemaleCopanSwabMale

The swabs may be ordered through SPD #2105023 (female) and #2105024 (male)

SPECIMEN REQUIREMENTS: Vagina, cervix, discharge, endocervical aspirate, endometrium, prostatic fluid, urethral discharge, penis
REJECTION CRITERIA: Inappropriate specimen container, insufficient specimen volume, refrigerated specimen.
MINIMUM VOLUME: 0.5 mL fluid, one swab
HANDLING INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature. Do NOT refrigerate.
REFERENCE RANGE: Growth of normal genital flora which may include alpha and nonhemolytic streptococci, diphtheroids, lactobacilli, coagulase negative staphylococci, anaerobes, Moraxella species, rare to moderate quantities of enteric gram-negative rods, and rare to light quantities of Gardnerella vaginalis.
LIMITATIONS OF TEST: Because genital specimens are often collected from sites harboring large numbers of commensal (normal) flora, strict attention MUST be taken to appropriate specimen collection. A separate specimen should be submitted for the Gram stain if a swab is used.
METHODOLOGY: Conventional culture using routine and selective media.
ADDITIONAL INFORMATION: Growth of more than two organisms may indicate skin or vaginal normal flora. Routine screening includes culture for Neisseria gonorrhoeae, group B Streptococcus, Staphylococcus aureus, yeast, and a moderate to heavy quantity of Gardnerella vaginalis. In addition, endometrial, prostatic, and urethral discharge specimens will be evaluated for growth of gram-negative rods present in heavy quantity or pure culture. The presence or absence of normal genital flora will be reported.A Gram stain of urethral discharge exhibiting intracellular and/or extracellular gram-negative diplococci is diagnostic for N. gonorrhoeae. Patients from whom N. gonorrhoeae is isolated are reported to the City of Chicago Board of Health. This is mandated by law. A Neisseria gonorrhoeae DNA probe assay is available for rapid detection of this pathogen. Refer to N. gonorrhoeae DNA Probe for additional information.

Gram Stain

CERNER / EPIC MNEMONIC: GS
POE DESCRIPTION: GR STAIN ONLY
CPT CODE: 87205
TEST INFORMATION: The test includes Gram stain ONLY. A culture will NOT be performed unless specifically requested.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: 2 hours after receipt of the specimen in the laboratory
CONTAINER TYPE: Sealed sterile container, Copan Swab® II
COLLECTION: Refer to the specific culture procedure for additional information.
SPECIMEN REQUIREMENTS: Duplicate of specimen submitted for culture. Refer to the specific culture procedure for additional information.
REJECTION CRITERIA: Specimen submitted in a blood culture vial, inappropriate specimen container, dry swab, blood specimen, catheter tip specimen, insufficient specimen quantity.
MINIMUM VOLUME: 1 mL or one swab. Separate swab must be submitted if a routine culture is also requested.
HANDLING INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature.
REFERENCE RANGE: Dependent upon site of specimen.
LIMITATIONS OF TEST: Isolation and identification of microorganisms will be performed ONLY if a culture is requested. If a swab is used, a separate swab MUST be submitted for the culture. Gram stains of urine specimens are performed on unspun specimens. Viable and nonviable organisms will be observed.
METHODOLOGY: Gram stain
ADDITIONAL INFORMATION: All Gram stains are examined for the presence or absence of white blood cells (indicative of infection), red blood cells, squamous epithelial cells (indicative of mucosal contamination), and microorganisms.Urine Gram stains are reported as less than, equal to, or greater than one organism per oil immersion field. One or more organisms indicates 100,000 organisms/mL of specimen.Gram stains will routinely be performed on the following specimens when submitted for routine aerobic culture: normally sterile body fluids, wounds, sputums, Leuken`s, and bronchials.
TEST SYNONYM(S):Direct Smear, Bacterial; Routine Stain, Bacterial; Smear, Gram Stain

Galactose-1-Phosphate Uridyl Transferase, Erythrocyte

CERNER / EPIC MNEMONIC: G1P URTRAN
POE DESCRIPTION: GAL 1 PHOS URIDYL TRANSFERASE; G1P URTRAN
CPT CODE: 82775
TEST INFORMATION: See OMIM informationMayo website  test 8333
DAYS PERFORMED:

Monday-Friday

TURNAROUND TIME:

one week

CONTAINER TYPE:

 

Lavender top, (EDTA), (heparin and ACD acceptable)

SPECIMEN REQUIREMENTS: 5 mL whole blood
MINIMUM VOLUME: 2 mL whole blood
REFERENCE RANGE:

Will be stated in report.

Galactose-1-Phosphate, Erythrocyte

CERNER / EPIC MNEMONIC: GAL-1-PHOS
POE DESCRIPTION: GALACTOSE 1 PHOSPHATE ERYTHROCYTE; GAL-1-PHOS
CPT CODE:

84378-90

DAYS PERFORMED:

 

Tuesday, Friday; 8 a.m. (Arrange with laboratory in advance.)

TURNAROUND TIME: Two weeks
SPECIAL INSTRUCTIONS:

Collect blood Monday-Friday only, must be in lab before noon.

CONTAINER TYPE: Green top (heparin) tube
SPECIMEN REQUIREMENTS: Blood
MINIMUM VOLUME:

2 mL whole blood

HANDLING INSTRUCTIONS: Maintain to 4°C (wet ice) during transport to the laboratory.
REFERENCE RANGE:

 See Mayo Clinic - Search Test Code 80337

Glucose Tolerance Test, 2 Hr

CERNER / EPIC MNEMONIC: GTT-2 HR
POE DESCRIPTION: GLUCOSE TOLERANCE 2 HR; GTT-2 HR
CPT CODE: 82952 (x2)
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: 8 hours
SPECIAL INSTRUCTIONS: See Patient Instructions for Glucose Tolerance Test. A fasting glucose level is drawn from the patient.¿ The patient is given orally a 75 gram solution of glucose. Two hours later, the patient's blood is drawn for a glucose assay.
CONTAINER TYPE: Gray top (sodium fluoride) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
MINIMUM VOLUME: 2 mL blood (1 mL plasma)
HANDLING INSTRUCTIONS: Refrigerate
REFERENCE RANGE:

FASTING (> 8 hours)

60-99 mg/dL  Normal

100-125 mg/dL  Potentially indicative of impaired fasting glucose (IFG). Requires confirmation on subsequent day.

>126 mg/dL  Potentially indicative of diabetes mellitus. In absence of symptoms of unequivocal hyperglycemia, requires confirmation on subsequent day.

GTT 2 HR (after 75 g glucose challenge)

<140 mg/dL Normal</p/>

 

149-199 mg/dL  Potentially indicative of impaired glucose tolerance (IGT).  Requires confirmation on subsequent.

 

>200 mg/dL  Potentially indicative of diabetes mellitus.  In absence of symptoms of unequiivocal hyperglycemia, requires confirmation on subsequent day.

 

Reference: Diabetes Care, 30(Suppl. 1), S42-S47 (2007).

CRITICAL VALUES: <40, >500
TEST SYNONYM(S):GTT

Gabapentin

CERNER / EPIC MNEMONIC: GABAPENTIN
POE DESCRIPTION: GABAPENTIN
CPT CODE:

80171-90

TURNAROUND TIME: 5-7 working days
CONTAINER TYPE:

Red top tube only

SPECIMEN REQUIREMENTS:

2.0 mL blood (1.0 mL serum)

REJECTION CRITERIA:

SST tubes not accepted.

MINIMUM VOLUME: 1 mL blood (0.5 mL serum)
REFERENCE RANGE:

See Specialty Labs - Search Test Code - 3364

LAST UPDATED:

11-11-2013

TEST SYNONYM(S):Neurontin

Gastrin

CERNER / EPIC MNEMONIC: GASTRIN
POE DESCRIPTION: GASTRIN
CPT CODE: 82941-90
TURNAROUND TIME: 5-7 working days
SPECIAL INSTRUCTIONS:

Patient should fast 12 hours prior to collection. This test cannot be added onto an existing specimen.

CONTAINER TYPE:

Red top tube or SSTTM tube

SPECIMEN REQUIREMENTS: 2.0 mL blood (1.0 mL serum)
MINIMUM VOLUME: 1.0 mL blood (0.5 mL serum)
REFERENCE RANGE: See Specialty Labs - Search Test Code 3176

Gliadin IgG and IgA Antibodies

CERNER / EPIC MNEMONIC: ANTI GLIAD
POE DESCRIPTION: ANTIGLIADIN ANTIBODY; ANTI GLIAD
CPT CODE:

83516 x2

TURNAROUND TIME: 5-7 working days
CONTAINER TYPE:

SST(TM) tube or red top tube

SPECIMEN REQUIREMENTS: 2.0 mL blood (1.0 mL serum)
MINIMUM VOLUME: 1.0 mL blood (0.5 mL serum)
REFERENCE RANGE:

See Specialty Labs - Search Test Code 1266

TEST SYNONYM(S):Antigliadin Antibodies

Glomerular Basement Membrane Antibody

CERNER / EPIC MNEMONIC: GBM
POE DESCRIPTION: GLOM BASEMENT MEMBRANE AB; GBM
CPT CODE: 83520-90
TURNAROUND TIME: 5-7 working days
CONTAINER TYPE:

Red top tube or SSTTM tube

SPECIMEN REQUIREMENTS: 2.0 mL blood (1.0 mL serum)
MINIMUM VOLUME: 1.0 mL blood (0.5 mL serum)
REFERENCE RANGE: See Specialty Labs - Search Test Code 1136
TEST SYNONYM(S):Anti-GMB; Antiglomerular Basement Membrane Antibody; Goodpasture's Antibody; GBM

Glucagon

CERNER / EPIC MNEMONIC: GLUCAGON
POE DESCRIPTION: GLUCAGON
CPT CODE: 82941-90
TURNAROUND TIME: 5-7 working days
CONTAINER TYPE: Lavender top (K2 EDTA) tube - 6 ml
SPECIMEN REQUIREMENTS: 3.0 mL EDTA plasma
MINIMUM VOLUME: 1.1 mL EDTA plasma
REFERENCE RANGE: See Specialty Labs - Search Test Code S51631

Granulocyte (Neutrophil) Antibody

CERNER / EPIC MNEMONIC: GRANULO AB
CPT CODE: 86021-90
TURNAROUND TIME: 5-7 working days
CONTAINER TYPE:

Red top tube or SST tube

SPECIMEN REQUIREMENTS:

2 mL blood (1.0 mL serum)

MINIMUM VOLUME:

1 mL blood (0.1 mL serum)

REFERENCE RANGE:

See Specialty Labs - Search Test Code S51304

LAST UPDATED:

9-17-2012

TEST SYNONYM(S):Neutrophil Antibody; Antineutrophil Antibody; Antigranulocyte Antibody

Growth Hormone

CERNER / EPIC MNEMONIC: GROWTH HOR
POE DESCRIPTION: GROWTH HORMONE; GROWTH HOR
CPT CODE: 83003-90
TURNAROUND TIME:

5-7 working days

SPECIAL INSTRUCTIONS: Stimulation test must be administered by a physician.  Patient should fast 12 hours before specimen collection.
CONTAINER TYPE:

Red top tube or SSTTM tube

SPECIMEN REQUIREMENTS: 4.0 mL blood (2.0 mL serum)
MINIMUM VOLUME: 2.0 mL blood (1.0 mL serum)
REFERENCE RANGE: See Specialty Labs - Search Test Code 3182
TEST SYNONYM(S):HGH; Human Growth Hormone; IRGH; Somatotropic Hormone; STH

Glutamic Acid Decarboxylase (GAD 65) Antibodies

CERNER / EPIC MNEMONIC:

GAD65 AB

POE DESCRIPTION:

Glutamic Acid Decarbox 65 Ab

CPT CODE:

83519-90

CDM NUMBER:

3181382

TURNAROUND TIME:

7-10 days

CONTAINER TYPE:

SST tube

SPECIMEN REQUIREMENTS:

2.0 mL blood (1.0 mL serum)

MINIMUM VOLUME:

1.0 mL blood (0.2 mL serum)

REFERENCE RANGE:

See http://questdiagnostics.com - Search Test Code - 34878

METHODOLOGY:

Radioimmunoassay (RIA)

LAST UPDATED:

11-17-2011

TEST SYNONYM(S):GAD 65 Antibodies, Beta Cell Antibody, Anti-GAD Antibodies

Gluten (IgE) Rast Allergen

CERNER / EPIC MNEMONIC:

GLUTEN

POE DESCRIPTION:

Gluten allergen

CPT CODE:

86003-90

TURNAROUND TIME:

5-7 working days

CONTAINER TYPE:

SSTTM tube or red top

SPECIMEN REQUIREMENTS:

2.0 mL blood (1.0 mL serum)

MINIMUM VOLUME:

1.0 mL blood (0.3 mL serum)

REFERENCE RANGE:

See Specialty Labs - Search Test Code F79

Galactokinase

CERNER / EPIC MNEMONIC:

GALKINASE

POE DESCRIPTION:

Galactokinase

CPT CODE:

82759

TEST INFORMATION:

Mayo Website, test code 8628

DAYS PERFORMED:

Blood can be collected Monday through Wednesday only.  Patient should be fasting, non-fasting acceptable.

TURNAROUND TIME:

one week

CONTAINER TYPE:

green top, heparin tube

SPECIMEN REQUIREMENTS:

5 mL whole blood

MINIMUM VOLUME:

2 mL whole blood

Glucose and Protein, Cerebrospinal Fluid

CERNER / EPIC MNEMONIC:

C/PANEL / CSF Panel (GLU and PRO)

CPT CODE:

82945, 84157

DAYS PERFORMED:

Specimens accepted daily, 24 hours

TURNAROUND TIME:

One hour

CONTAINER TYPE:

CSF collection tubeRed top tube - 10 mlRed top tube - 4 ml

SPECIMEN REQUIREMENTS:

Cerebrospinal Fluid

MINIMUM VOLUME:

0.2 mL

TEST SYNONYM(S):CSF Panel - Glu and Pro; Cerebrospinal Fluid Panel

Giardia/Cryptosporidium Antigen

CERNER / EPIC MNEMONIC:

CRYPTGIA

POE DESCRIPTION:

CRYPTGIA

CPT CODE:

87328 and 87329

CDM NUMBER:

3422008 and 3422009

TEST INFORMATION:

This test is used to detect the presence of Cryptosporidum and/or Giardia in infected patients

DAYS PERFORMED:

Monday through Friday

TURNAROUND TIME:

1 - 3 days

SPECIAL INSTRUCTIONS:

Specimens should be placed in Eco-Fix or Carey Blair preservatives

CONTAINER TYPE:

Eco-Fix or Carey Blair preservative

SPECIMEN REQUIREMENTS:

Stool added to preservative up to fill line.

REJECTION CRITERIA:

Specimen not in proper container, leaky container, mislabeled or no label.  Stool specimens preserved in PVA.

MINIMUM VOLUME:

0.5 cc of fresh stool; stool in preservative up to the volume line on the container

HANDLING INSTRUCTIONS:

If not put into preservative, send to the laboratory immediately.

REFERENCE RANGE:

Giardia and Cryptosporidium antigen not detected.

LIMITATIONS OF TEST:

Concentrations of 20% (v/v) Imodium A-D may result in a false negative reaction when low levels of Cryptosporidium antigen are present.  Proper specimen collection and processing are essential to achieving optimal performance of the assay.

METHODOLOGY:

Enzyme immuno assay

TEST SYNONYM(S):Ova and parasite exam, Cryptosporidium , Giardia