Orderable EAP code:

LAB100519

Billable EAP Codes:

80002914 x 1

CPT Codes:

80307 x 1

Lab Section:

Core Lab

Includes:

Oxycodone

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:

Detects Oxycodone in urine at levels greater than or equal to 100 ng/mL. "Positive" results are not confirmed by alternate method. See: Summary of Compounds that may be detected by OHSU Drugs of Abuse Screening Methods. (Opens in a new window)

Synonyms:

Drugs of Abuse, Drug Screen, Urine Drug Screen

Orderable EAP code:

LAB101656

Billable EAP Codes:

80004142 x 1 80004143 x 1

CPT Codes:

87641 x 1 87640 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 4 Hours

Urgent: 2 Hours

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

Nasal source only. E-Swab preferred. Stuart swab ok. Swab both nares with each swab. If using E-swab x 2, reprint a label for the second specimen.

Pediatric Specimen Requirements:

Nasal source only. E-Swab preferred. Stuart swab ok. Swab both nares with each swab. If using E-swab x 2, reprint a label for the second specimen.

Comments:

Not Detected

Synonyms:

MRSA, Nasal Screen

Orderable EAP code:

LAB00161

Billable EAP Codes:

80001742 x 1

CPT Codes:

82950 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mg/dL

Related Links:

Core Laboratory

Specimen Requirements:

2 mL blood in a GRAY top tube

Pediatric Specimen Requirements:

0.5 mL blood in a GRAY top tube

Reference Range:

Less than 130 mg/dL

Comments:

This test is to be used for diagnosis of gestational diabetes only. 50 gram oral glucose load. The patient does not need to be fasting.

Synonyms:

Glucose Tolerance; GTT; 1GT

Orderable EAP code:

LAB00967

Billable EAP Codes:

80001819 x 1

CPT Codes:

85520 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

U/mL

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 up to 4 hours at room temperature. Citrate plasma separated from cells is stable up to 14 days at -20 degrees C.

For referral testing, submit 2 x 1.0 mL frozen platelet-poor citrated plasma. Remove plasma from cells promptly, within 1 hour of draw, to avoid falsely low results due to heparin cofactor II.

Core Lab sodium citrate specimens must be processed and frozen within 2 hours of specimen collection. OHSU clinics must cab specimen to the Core Lab, Hatfield Research Center (HRC), if processing is delayed or not possible on site. Detailed instructions are included in this manual under Specialized Lab Services, Hemostasis & Thrombosis section.

Pediatric Specimen Requirements:

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

Reference Range:

Heparin, Either STD/LMW - Therapeutic Ranges:

Heparin, Unfractionated: 0.30 to 0.70 U/mL

Enoxaparin, LMWH: 0.70 to 1.20 U/mL

Dalteparin, LMWH: 0.70 to 1.20 U/mL

Tinzaparin, LMWH: Therapeutic range not established. Preliminary studies suggest range similar to dalteparin. Clinical correlation required.

Comments:

Draw volume is critical due to the liquid anticoagulant. Allow tubes to fill by vacuum.

• Tubes with rubber stopper: fill to line on label.
• Tubes with plastic (Hemogard) cap: the fill level is above the top of the label.
• Syringe: do not remove the vacutainer stopper. Insert the needle through the stopper and allow the tube to fill by vacuum. Do not overfill the vacutainer.
• Pediatric tubes have no vacuum. Remove the cap and add blood to the 1.3 mL mark. Do not overfill.

Monitor 4 to 6 hours post-injection.

Methodology: Anti-Xa chromogenic.

Synonyms:

Anti-Xa Level

LMW Heparin

Unfractionated Heparin

Standard Heparin

Enoxaparin

Dalteparin

Tinzaparin

Heparin Level

Orderable EAP code:

LAB01025

Billable EAP Codes:

80002089 x 3

CPT Codes:

82533 x 3

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mcg/dL

Specimen Requirements:

4 mL blood in a RED top tube for each timepoint: 0, 30 and 60 min.

Pediatric Specimen Requirements:

1.0 mL blood in a RED top tube for each timepoint: 0, 30 and 60 min.

Reference Range:

Baseline:

A.M. Draw (7 to 9 am) = 5.3 to 22.5 micrograms/dL

P.M. Draw (3 to 5 pm) = 3.4 to 16.8 micrograms/dL

30 and 60 minutes = normal response at 30 or 60 minutes is peak. 20 micrograms/dL

Comments:

Ordering LAB01025 "ACTH STIMULATION TEST (0, 30, 60), SERUM" will create three collection labels, one for each timepoint.

Orderable EAP code:

LAB100504

Billable EAP Codes:

80003516 x 1

CPT Codes:

87502 x 1

Lab Section:

Core Lab

Includes:

Influenza A

Influenza B

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Critical Values:

Positive results will be phoned.

Specimen Requirements:

Nasal aspirates, nasal washes or nasopharyngeal swabs in viral transport media (red capped swab kit) or phosphate buffered saline (orange capped swab kit).

BAL and tracheal aspirates in sterile, leak proof container.

Comments:

This test has not been evaluated for patients without signs and symptoms of respiratory tract infection. Zicam at 15% (w/v) may interfere with the detection of low levels of influenza B and RSV A.

The Xpert Xpress SARS-CoV-2/Flu/RSV PLUS test is a rapid, multiplexed real-time RT-PCR test intended for the detection and differentiation of SARS-CoV-2, influenza A, influenza B, and respiratory syncytial virus (RSV) viral RNA in specimens collected from individuals suspected of respiratory viral infection consistent with COVID-19.

Negative results do not preclude infection and should not be used as the sole basis for treatment or other patient management decisions. Combine results with clinical observations, patient history, and epidemiological information.

Synonyms:

Influenza

Flu virus

Swine Flu

Flu

Orderable EAP code:

LAB101509

Billable EAP Codes:

80001814 x 1

CPT Codes:

85049 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

k/cu mm

Critical Values:

Less than or equal to 10

or

greater than or equal to 1000 k/cu mm.

Specimen Requirements:

BLUE top tube, 3.2% sodium citrate. Tube must be full.

Pediatric Specimen Requirements:

Pediatric BLUE top tube, 3.2% sodium citrate. Tube must be full.

Reference Range:

Age (years)	PLT Count (k/cu mm)
0 up to 2	125 to 600
2 up to 12	150 to 420
12 up to 150	150 to 400

Comments:

The Platelet Clumping Protocol is used to resolve falsely decreased platelet counts (pseudothrombocytopenia) in patients whose platelets clump in the presence of EDTA. The lab will test the citrate tube and the EDTA tube submitted for the CBC or platelet count ordered concurrently. The lab will examine both tubes for the presence of platelet clumps, and report the platelet count accordingly.

Synonyms:

Platelet Clumper, EDTA Clumper, Pseudothrombocytopenia

Orderable EAP code:

LAB00612

Billable EAP Codes:

80001108 x 1 (PT 0 Bill) 80001110 x 1 (PT 60 Bill) 80001109 x 1 (PT 0 Mix Bill) 80001111 x 1 (PT 60 Mix Bill)

CPT Codes:

85610 x 1 (PT 0 Bill) 85610 x 1 (PT 60 Bill) 85611 x 1 (PT 0 Mix Bill) 85611 x 1 (PT 60 Mix Bill)

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

Mixes performed 7 days a week in Core lab. Samples received before 1:30 pm are run the same day; after 1:30 pm, samples are processed the next day. Batched 2 times per week. Call 503-494-7383 if STAT.

Units:

seconds

Specimen Requirements:

3 LIGHT BLUE top tube, 3.2% sodium citrate or four (4) 1 mL frozen sodium citrate plasma aliquots. Draw volume is critical due to the liquid anticoagulant. Allow tubes to fill by vacuum. For tubes with a rubber stopper, fill to the line on the label. For tubes with a plastic (hemogard) cap, the fill level is above the top of the label. If drawing with a syringe, do not remove the vacutainer stopper; insert the needle through stopper and allow the tube to fill by vacuum.

Hemostasis & Thrombosis lab sodium citrate specimens must be processed and frozen within 2 hours of specimen collection. OHSU clinics must cab the specimen to the Core Lab, Hatfield Research Center, 9th Floor (room 9D20) if processing is delayed or not possible on site. A phone call is helpful to alert the lab at 503-494-7383. Detailed instructions are included in this manual under Specialized Lab Services, Hemostasis & Thrombosis section.

Pediatric Specimen Requirements:

3 pediatric 1.3 mL LIGHT BLUE top tubes, 3.2% sodium citrate or two 0.5 mL frozen sodium citrate plasma aliquots. For pediatric patients requiring multiple coagulation tests, please call 503-494-7383 regarding draw volumes.

Reference Range:

Normal Pool, 0 min: 11.9 to 16.0 sec.

Normal Pool, 60 min: 11.9 to 16.0 sec.

Lupus anticoagulant testing - see separate test instructions.

Comments:

Avoid warfarin (Coumadin) therapy for 2 weeks and heparin/DOAC/DTI therapy for 2 days prior to test.

The assay is used to distinguish between circulating and coagulation factor deficiency when PT is prolonged. Test is a screening test for the lupus anti-coagulant. Typically, a patient is identified with a prolonged PT without a history of bleeding, or perhaps with a history of thrombosis or miscarriage. Failure to correct a prolonged PT with 1:1 mix suggests a circulating inhibitor. A positive-delete mixing study indicating an inhibitor should be followed by studies to determine whether the inhibitor is a true antibody (i.e. anti-Factor V) or an anti-phospholipid antibody (lupus anticoagulant). Anticoagulant screening may be reflexively performed to exclude drug effects.

Methodology: Clot-based on prolongation of PT assay.

Synonyms:

PT 1:1 Mix, PTM, 50:50, 1:1 Mix, PT Mix

Orderable EAP code:

LAB00180

Billable EAP Codes:

80003526 x 1 80001884 x 1 (if subcultured)

CPT Codes:

87040 x 1 87077 x 1 (if subcultured)

Lab Section:

Core Lab

Turnaround Time:

Preliminary results available at time 0 with bottle file, 24, 48, 72, and 96 hours; final results available in 5 days.

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

STAT to lab.

Optimal blood volume is the single most important factor contributing to sensitive detection of bloodstream infections.

Click on the link Blood Culture Collection (Opens in a new window) for further details.

Pediatric Specimen Requirements:

See above.

Comments:

Routine aerobic blood culture includes yeast. For culture bottles that turn positive growth, initial gram stain and rapid Molecular Blood Culture Identification (BCID) are performed by Core Laboratory 24/7. (See complete list of reflex BCID targets (Opens in a new window)). Positive results will reflex to the Blood Culture for confirmation of isolate identification and in vitro susceptibility testing.

Synonyms:

Blood AFB Culture

Blood Bacterial Culture

Blood Culture

Blood Fungal Culture

Blood Yeast Culture

 

Orderable EAP code:

LAB100302

Billable EAP Codes:

80001685 x 1

CPT Codes:

81003 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours

Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Specimen Requirements:

2 mL urine in a urine cup

Pediatric Specimen Requirements:

1 mL urine in a urine cup

Reference Range:

1.005 to 1.030

Comments:

Specific gravity will be reported to the nearest thousandth (0.001).

Synonyms:

Urine S.G, Refractometer