Erythrocyte Sedimentation Rate

Orderable EAP code:

LAB00234

Billable EAP Codes:

80001821 x 1

CPT Codes:

85652 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mm/hr

Specimen Requirements:

3.0 mL blood in a LAVENDER top tube.

Specimen stability: 4 hours at room temperature, 24 hours refrigerated. Do not freeze.

Pediatric Specimen Requirements:

1.0 mL blood in a 3 mL LAVENDER top tube

Submit all sed rate specimens, even low volume peds specimens, in standard size EDTA tubes. Microtainers are not compatible with instrumentation used to measure sed rate.

Specimen stability: 4 hours at room temperature, 24 hours refrigerated. Do not freeze.

Reference Range:

 Age  Male  Female
 0 days to 50 years  0 to 15 mm/hr  0 to 20 mm/hr
 50 years to 150 years  0 to 20 mm/hr  0 to 30 mm/hr

Comments:

Clotted specimens are unacceptable.

Conditions such as cold agglutinins, anemia (including sickle cell disease), multiple myeloma, hemolysis, icterus or lipemia may affect sedimentation rate results.

Synonyms:

ESR, SED Rate, Westergren ESR

Eosinophils, Urine

Orderable EAP code:

LAB00330

Billable EAP Codes:

80001836 x 1

CPT Codes:

89051 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

% Eosinophils/100 cells counted.

Specimen Requirements:

12 mL urine in a clean cup.

Pediatric Specimen Requirements:

1 mL urine in a clean cup.

Reference Range:

None seen.

Eosinophils, Nasal Smear

Orderable EAP code:

LAB00370

Billable EAP Codes:

80001839 x 1

CPT Codes:

89190 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

% Eosinophils/100 cells counted.

Specimen Requirements:

2 dry nasal secretion smears on slides or swab or exudate in sterile container.

Reference Range:

None seen.

Synonyms:

Eosinophils, Exudate

Enterovirus by PCR, CSF

Orderable EAP code:

LAB102855

Billable EAP Codes:

80002909 x 1

CPT Codes:

87498 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 4 Hours
Urgent: 2 Hours

Test Schedule:

24 hours, 7 days a week.

Critical Values:

Positive for Enterovirus by PCR

Specimen Requirements:

0.5 mL CSF in sterile container. STAT to lab.

Reference Range:

Negative

Comments:

Positive enterovirus results do not rule out other causes of meningitis including bacteria, fungi and other viruses. Negative enterovirus results do not entirely rule out enterovirus as a cause of meningitis, as virus, if present, may be below detection levels. Does not detect Parechovirus.

Electrolyte Set

Orderable EAP code:

LAB00430

Billable EAP Codes:

80001655 x 1

CPT Codes:

80051 x 1

Lab Section:

Core Lab

Includes:

Na, K, Cl, CO2

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Critical Values:

See individual test listings for critical values.

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube.

Reference Range:

See individual test listings for reference ranges.

Synonyms:

Electrolyte

Drug Screen, Urine, With Option to Confirm

Orderable EAP code:

LAB00665

Billable EAP Codes:

80001665 x 1 (Barbiturates)
80001664 x 1 (Opiates)
80001663 x 1 (Cannabinoids)
80001662 x 1 (Amphet/Met)
80001660 x 1 (Benzodiazephines)
80001661 x 1 (Cocaine)
80002914 x 1 (Oxycodone Screen)
80002915 x 1 (Methadone Screen)
80005610 x 1 (Fentanyl Screen)

CPT Codes:

80307 x 9

Lab Section:

Core Lab

Includes:

Amphetamine, cocaine, barbiturates, opiates, cannabinoid (THC), benzodiazepines, methadone, oxycodone, fentanyl.

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Related Links:

Specimen Requirements:

6 mL urine in a urine cup

Pediatric Specimen Requirements:

6 mL urine in a urine cup or in 10 mL RED top tube

Reference Range:

Negative

Comments:

"Positive" results confirmed (at the request of ordering clinicians) by GC/MS analysis except Benzodiazepines. Definitive confirmation by GC/MS requires an additional 24 to 48 hours from receipt of initial urine specimen. Results of confirmation analysis generally available within 72 hours following receipt of specimen in laboratory.

Synonyms:

DOA, Drugs of Abuse, Urine Drug Screen

Drug Screen Neonate, Urine, with Confirm

Orderable EAP code:

LAB00421

Billable EAP Codes:

80001662 x 1
80001661 x 1
80001664 x 1

CPT Codes:

80307 x 3

Lab Section:

Core Lab

Includes:

Amphetamine, Cocaine, Opiates

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

6 mL urine cup.

Pediatric Specimen Requirements:

6 mL urine in sample cup or in 10 mL RED top tube.

Reference Range:

Negative

Comments:

"Positive" results confirmed by GC/MS analysis. Definitive confirmation by GC/MS requires an additional 24 to 48 hours from receipt of initial urine specimen. Results of confirmation analysis generally available within 72 hours following receipt of specimen in laboratory.

See: Summary of Compounds that may be detected by OHSU Drugs of Abuse Screening Methods. (Opens in a new window)

Synonyms:

Drugs of Abuse
Urine Drug Screen

Drug Screen Mother, Urine, with Confirm

Orderable EAP code:

LAB00081

Billable EAP Codes:

80001662 x 1
80001663 x 1
80001661 x 1
80001664 x 1

CPT Codes:

80307 x 4

Lab Section:

Core Lab

Includes:

Amphetamine, Cannabinoids, Cocaine, Opiates

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

6 mL urine cup.

Pediatric Specimen Requirements:

6 mL urine in sample cup or in 10 mL RED top tube.

Reference Range:

Negative

Comments:

"Positive" results confirmed by GC/MS analysis. Definitive confirmation by GC/MS requires an additional 24 to 48 hours from receipt of initial urine specimen. Results of confirmation analysis generally available within 72 hours following receipt of specimen in laboratory.

SEE: Summary of Compounds that may be detected by OHSU Drugs of Abuse Screening Methods. (Opens in a new window)

Synonyms:

Drugs of Abuse
Urine Drug Screen

Digoxin

Orderable EAP code:

LAB00101

Billable EAP Codes:

80001667 x 1

CPT Codes:

80162 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

ng/mL

Critical Values:

Greater than or equal to 2.5 ng/mL

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube.

Do not collect into tubes that contain gel separator.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube.

Do not collect into tubes that contain gel separator.

Reference Range:

0.8 to 2.0 ng/mL (therapeutic)

Comments:

Specimen stability: serum/plasma separated from cells is stable for 8 hours at room temperature or for 2 days refrigerated.

Synonyms:

Lanoxin

D-Dimer (PE or DIC)

Orderable EAP code:

LAB00170

Billable EAP Codes:

80001816 x 1

CPT Codes:

85379 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mcg/mL FEU

Interpretation:

Less than 0.50 micrograms/mL: PE very unlikely.
.50 - 4.0 micrograms/mL: seen in ill patients and not diagnostic of thrombosis.
Greater than 4.0 micrograms/mL: suggestive but not diagnostic of DIC.

Critical Values:

None

Specimen Requirements:

3.2% sodium citrate tubes are acceptable provided they are filed to the line on the manufacturers label. Tubes must be full (see comments below). Whole blood specimens are stable for 4 hours at room temperature. Citrate plasma separated from cells is stable for 14 days at -20 degrees C.

Pediatric Specimen Requirements:

Add blood to the 1.3 mL mark of Pediatric BLUE top tube, 3.2 sodium citrate.

Reference Range:

Less than 0.500 ug/mL FEU.

Comments:

Draw volume is critical due to the liquid anticoagulant. Allow tubes to fill by vacuum. For tubes with rubber stopper, fill to line on label.

For tubes with plastic (Hemogard) cap, fill level is above top of label.

If drawing with syringe, do not remove vacutainer stopper, insert needle through stopper and allow tube to fill, by vacuum. Do not overfill vacutainer.

Note: Pediatric tubes have no vacuum; remove cap and add blood to the 1.3 mL mark. Do not overfill pediatric tube.

Moderately to marked hemolyzed or lipemic samples are not acceptable.

Synonyms:

DIC Screen, D Dimer, PE Screen

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