Unstable Hemoglobin Tests

CERNER / EPIC MNEMONIC: HEAT STAB; ISOPRO PPT
POE DESCRIPTION: HEMOGLOBIN HEAT DENATURATION; HEMOGLOBIN ISOPROPANOL PRECIPITATION
CPT CODE: 85999
DAYS PERFORMED: As scheduled with the laboratory
TURNAROUND TIME: 24 hours
SPECIAL INSTRUCTIONS: Procedure must be scheduled in advance with the laboratory at 942-5002. Deliver immediately after collection. Specimen must be in laboratory before 1100 if test is to be done same day.
CONTAINER TYPE: Lavender top (EDTA) tube
SPECIMEN REQUIREMENTS: Blood
REJECTION CRITERIA: Not scheduled with the laboratory ahead of time, non-fresh sample
MINIMUM VOLUME: 1.5 mL whole blood. A minimum of one-half the capacity of the EDTA tube used for collection.
HANDLING INSTRUCTIONS: Specimen must be fresh. Specimen must be delivered to the laboratory immediately after collection.
REFERENCE RANGE: No precipitation

Urea Nitrogen Clearance

CERNER / EPIC MNEMONIC: U/UREA CLR
POE DESCRIPTION: URT UREA CLEARANCE; U/UREA CLR
CPT CODE: 84545
TEST INFORMATION: Test includes blood urea nitrogen, urine urea nitrogen, urine urea clearance.
DAYS PERFORMED: Specimen accepted daily
TURNAROUND TIME: 24-48 hours
SPECIAL INSTRUCTIONS: Blood urea should be ordered and sent to the laboratory during urine collection. This test is part of the Basic Metabolic Panel and the Comprehensive Metabolic Panel. For timed urine collection, instru t the patient to void at the beginning of the collection period and discard the specimen. Give patient two glasses of water. Give patient two more glasses of water one hour after test is started. After approximately 12 hours (midway in the collection), the blood specimen should be drawn. 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 the date and time collection finished.
CONTAINER TYPE:

SST tube; plastic 24-hour urine container, no preservative (Chemistry bottle #1)

SPECIMEN REQUIREMENTS: Blood (serum), 12- or 24-hour urine colleciton
MINIMUM VOLUME: 4 mL blood (2 mL serum); submit entire urine collection to the laboratory.
HANDLING INSTRUCTIONS: Refrigerate urine during collection.
REFERENCE RANGE: Maximum clearance: 62-95 mL/minute; standard clearance: 42-65 mL/minute (80% to 135% of normal)
TEST SYNONYM(S):Urea Clearance; UUN Clearance

Urea Nitrogen, Fluid

CERNER / EPIC MNEMONIC: F/UN
POE DESCRIPTION: FLUID UREA NITROGEN
CPT CODE: 84540
DAYS PERFORMED: Specimen accepted daily
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 Urea Nitrogen

Urea Nitrogen, Quantitative, Urine

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

Urine Urea Nitrogen Random; Urine Urea Nitrogen Timed

CPT CODE:

Random = 84540; Timed = 84540, 81050

TEST INFORMATION: Results are reported as grams of urea nitrogen 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 times 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 container, Timed 24 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: None established; Timed: 7-20 g/24 hours
TEST SYNONYM(S):Urine Urea Nitrogen; UUN

Urea Nitrogen, Serum

CERNER / EPIC MNEMONIC: BUN
POE DESCRIPTION: UREA NITROGEN BLOOD; BUN
CPT CODE: 84520
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine: 8 hours; stat: 1 hour
CONTAINER TYPE:

SST tube

SPECIMEN REQUIREMENTS: Blood (serum)
MINIMUM VOLUME: 0.4 mL blood (0.2 mL serum)
REFERENCE RANGE: 0-1 months: 4-12 mg/dL; 1 month to 15 years: 5-18 mg/dL; older than 15 years: 8-21 mg/dL
TEST SYNONYM(S):Blood Urea Nitrogen; BUN; Urea Nitrogen, Blood

Uric Acid, Quantitative, Fluid

CERNER / EPIC MNEMONIC: F/URIC
POE DESCRIPTION: FLUID URIC ACID
CPT CODE: 84560
DAYS PERFORMED: Specimen accepted daily
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 Uric Acid

Uric Acid, Quantitative, Urine

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

URT URIC; U/URIC

CPT CODE: 84560
DAYS PERFORMED: Specimen accepted daily
TURNAROUND TIME: Timed urine: 24-48 hours
SPECIAL INSTRUCTIONS: For timed 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:

Plastic 24-hour urine container, no preservative (Chemistry bottle #1) or sterile cup for random collection

SPECIMEN REQUIREMENTS: 24-hour or random urine
MINIMUM VOLUME: Submit entire urine collection to the laboratory.
HANDLING INSTRUCTIONS: Refrigerate during collection.
REFERENCE RANGE: Timed: 0-100 mg/24 hours on average diet; random: none established, must be established with clinical finding
TEST SYNONYM(S):Urine Uric Acid

Uric Acid, Serum

CERNER / EPIC MNEMONIC: URIC
POE DESCRIPTION: URIC ACID
CPT CODE: 84550
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: 0-15 years; 2.0-5.5 mg/dL; 15 years to adult: male: 3.5-7.7 mg/dL, female: 2.6-6.8 mg/dL

Urinalysis, Standard Exam

CERNER / EPIC MNEMONIC: UA
POE DESCRIPTION: URINALYSIS; UA
CPT CODE: 81003
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Routine: 8 hours; stat: 1 hour
SPECIAL INSTRUCTIONS: Collect separate sample for culture. This test cannot be added onto an existing sample.
CONTAINER TYPE: Sterile 80 mL urine container
SPECIMEN REQUIREMENTS: Urine
REJECTION CRITERIA: Specimens containing preservatives, frozen samples, unrefrigerated specimens greater than 4 hours old.
MINIMUM VOLUME: 6 mL
HANDLING INSTRUCTIONS: Transport specimen to the laboratory within 2 hours of collection. Analysis should be made within 4 hours of collection. Refrigerate specimen if delivery cannot be made within 2 hours. Refrigeration may cause a change in pH and the formation of crystals in specimens.
REFERENCE RANGE:

Specific gravity: 1.002-1.030; pH: 5-8; protein: <20 mg/dL; bilirubin: negative; urobilinogen: 0.2-1 EU/dL glucose: negative; ketones: negative; occult blood: negative; RBCs: 0-4/hpf; WBCs: 0-4/hpf, bacteria: negative on spun specimen; casts: 0-4 hyaline casts/lpf. Warm, freshly voided urine sediment from normal subjects almost never contains crystals, despite maximal concentration. </body/>

TEST SYNONYM(S):Routine Urine; Screening Urinalysis; UA; UA; Urinalysis, Admission; Urinalysis, Routine; Routine Urinalysis; Routine UA

Urine Eosinophils

CERNER / EPIC MNEMONIC: U/EOS
POE DESCRIPTION: URR EOSINOPHILS; U/EOS
CPT CODE: 87205
DAYS PERFORMED:

Daily

TURNAROUND TIME:

1 day

SPECIAL INSTRUCTIONS:

Collect sample separately from urinalysis or urine culture samples.

CONTAINER TYPE: Sterile 80 mL urine specimen container
SPECIMEN REQUIREMENTS: Clean voided midstream urine
MINIMUM VOLUME:

10 mL

HANDLING INSTRUCTIONS:

Deliver immediately to lab.  If delivery is delayed, refrigerate sample.

REFERENCE RANGE: Negative for eosinophils
LAST UPDATED:

1-17-2012

TEST SYNONYM(S):Eosinophils, Random Urine

Urine Culture, Fungus

CERNER / EPIC MNEMONIC: C FUNGUSSM
POE DESCRIPTION: CU FUNGUS W SMEAR (NON-SKIN); C FUNGUSSM (NON-SKIN)
CPT CODE: 87102; 87206
TEST INFORMATION: The test includes centrifugation of the specimen with inoculation of the sediment to appropriate fungal media and performance of a fungal smear.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Smear results: same day if the specimen is received in the laboratory no later than 1400. Preliminary culture reports are available after 1 week or when a fungal isolate is detected. Culture reports will be finalized after 4 weeks.
CONTAINER TYPE: Sealed sterile urine container, no preservative.
SPECIMEN REQUIREMENTS: Voided urine, midstream urine, clean catch urine, suprapubic puncture urine, catheterized urine, cystoscopic urine, bladder urine
REJECTION CRITERIA: Inappropriate specimen container, specimen received in a preservative, insufficient specimen volume, urine specimen submitted in a boric acid transport tube. Only one specimen will be accepted per day unless a routine collected specimen and an invasive type specimen (i.e. suprapubic, cystoscopic, etc.) are submitted.
MINIMUM VOLUME: 2 mL
HANDLING INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, refrigerate.
REFERENCE RANGE: No fungi observed/isolated
METHODOLOGY: Fungal smear: calcofluor white stain. Culture: Conventional culture utilizing media specifically formulated for fungal isolation.

Urine Culture, Routine, Clean Catch

CERNER / EPIC MNEMONIC: C URINE; C URINEGS
POE DESCRIPTION: CU URINE (NON-INVASIVE); URINE C&S (NON-INVASIVE); C URINE (NON-INVASIVE)
CPT CODE: 87086
TEST INFORMATION: A direct Gram stain is performed ONLY if specifically requested.
DAYS PERFORMED:

Daily, 24 hours

TURNAROUND TIME:

Gram stain: 2 hours after receipt of the specimen in the laboratory. Preliminary culture reports are available after 24 hours. Cultures with no growth will be issued after 24 hours. Completion of culture reports may take 48-72 hours after receipt of the specimen when more than one isolate is found.

CONTAINER TYPE:

Sealed sterile urine container or boric acid transport tube.

COLLECTION: Early morning specimens yield highest bacterial counts from overnight incubation in the bladder, and thus, may be the best specimen. The patient must be instructed to thoroughly cleanse the skin and collect the midstream urine specimen. Catheterized specimens are to be collected per the Nursing Procedure Manual. Do NOT collect urine from the drainage bag when an indwelling catheter is in place, since growth of bacteria can occur in the bag itself. Rather, clean the catheter with an alcohol sponge, puncture with a sterile needle, and collect in a sterile container. Transfer a portion of the specimen to a boric acid transport tube. Mix the sample well.
SPECIMEN REQUIREMENTS: Urine
REJECTION CRITERIA: Inappropriate specimen container, insufficient specimen volume, Foley catheter, delay of more than 2 hours when submitting a nonrefrigerated specimen in a sterile container, expired boric acid tube.
MINIMUM VOLUME: 2.5 mL (4.5 mL for boric acid urine transport tube)
HANDLING INSTRUCTIONS: Specimens not collected in the boric acid transport tube MUST be transported as soon as possible. When transportation is delayed, refrigerate. The boric acid transport tube may be stored at room temperature for up to 24 hours before specimen delivery.
REFERENCE RANGE: See Additional Information.
LIMITATIONS OF TEST: Bacteria present in numbers <1000 organisms/mL are NOT detected by this method.
METHODOLOGY: Smear: Gram stain. Culture: conventional culture on routine media.
ADDITIONAL INFORMATION: The following guidelines will be used for the isolation and identification of microorganisms from voided and catheterized urine specimens. If one or two microorganisms are isolated in numbers >10,000 (i.e. 104) organisms/mL, the microorganisms are identified and susceptibility testing performed, if appropriate. If three or more organisms are isolated and one organism is clearly predominant and present in numbers >100,000 (i.e. 105) organisms/mL, the predominant organism will be identified and susceptibility testing performed, if appropriate. If three or more organisms are present and no organism is clearly predominant, the comment ''Three or more organisms present, suggestive of contamination. Consider repeating specimen collection.'' will be added to the report. Organism identification will NOT be performed unless the laboratory is notified that further processing is required. Susceptibility testing is NOT routinely performed for coagulase-negative Staphylococcus species or Group B Streptococcus.
LAST UPDATED:

6-3-2014

TEST SYNONYM(S):Midstream Urine Culture, Routine; Urine Culture, Routine

Uniparental Detection of Prader-Willi/Angelman Syndrome DNA Analysis

CERNER / EPIC MNEMONIC: PWS-AS
POE DESCRIPTION: PRADER WILLI/ANGLEMAN DIR DNA; PWS-AS
CPT CODE: 83894; 83896; 83912; 83891; 83892 (x2); 83897
TEST INFORMATION: See OMIM information - PWS

See OMIM information - AS

DAYS PERFORMED: Mon-Fri, 0800-1500
TURNAROUND TIME: 3 weeks
SPECIAL INSTRUCTIONS: Completed patient history form MUST be submitted with specimen. Before specimen collection, contact the Genetics Laboratory (312-942-6298) for required form and additional information.
CONTAINER TYPE:

Lavender top (EDTA) tube

SPECIMEN REQUIREMENTS: Blood or other tissue
MINIMUM VOLUME: 3 mL
HANDLING INSTRUCTIONS: Leave specimen at room temperature and deliver to the laboratory as soon as possible.

Urine Homocystine/Cystine

CERNER / EPIC MNEMONIC: U/HOMOCYS
POE DESCRIPTION: URT HOMOCYSTINE; U/HOMOCYS
CPT CODE:

83090

TURNAROUND TIME:

5-7 working days

SPECIAL INSTRUCTIONS:
  1. Void and discard the first-morning urine specimen following an overnight fast.
  2. Continue fasting and collect the next random urine specimen.
CONTAINER TYPE: Plastic urine collection tube
SPECIMEN REQUIREMENTS:

Random urine, 4 mL

MINIMUM VOLUME:

2.25 mL

REFERENCE RANGE:

See Mayo Labs - Search Test Code 80378

LAST UPDATED:

3-22-2013

TEST SYNONYM(S):Urine Homocystine

Urine Organic Acid

CERNER / EPIC MNEMONIC: U/ORGANIC
POE DESCRIPTION: UR ORGANIC ACID
CPT CODE: 83918
DAYS PERFORMED: Mon-Fri
TURNAROUND TIME: Variable
CONTAINER TYPE: Plastic urine collection tube
SPECIMEN REQUIREMENTS: Random urine
MINIMUM VOLUME: 10 mL
HANDLING INSTRUCTIONS: Refrigerate or freeze.
REFERENCE RANGE: Individual standards