Tests Catalogs

PSA, PSA FREE, %FREE

LAB171

 

Collect

One 5.0 mL gold or red top with gel (SST), (clot activator serum).

Pediatric Collection

1.5 mL blood collected in a gold or red top with gel (SST), (clot activator serum) or other serum tube.

Unacceptable Conditions

Plasma samples; sample not properly identified; insufficient sample volume.

Storage/Transport Temperature

Internal: Allow sample to clot for 30 minutes, then deliver to lab immediately.
Offsite: Allow sample to clot 30 minutes prior to centrifugation. Centrifuge within 1 hour of collection. Send at 2-8 degrees C.

Stability (from collection to initiation)

Before centrifugation: 1 hour.

After centrifugation: Ambient, 3 hours; Refrigerated, 24 hours

Serum aliquot: Ambient, 3 hours; Refrigerated, 24 hours; Frozen (-20 degrees C): 5 months.

Remarks

Avoid collection after prostatic manipulation.

Performed by

PCL Clinical Laboratory - Core

Performed

Daily

Methodology

Chemiluminescent EIA

Reported

Same day

Synonyms

  • -776
  • LAB171

Reference Interval

PSA, total, healthy males without prostatectomy: 0.00 - 4.00 ng/mL

Performed by

PCL Clinical Laboratory - Core

CPT Codes

84153; 84154

Collection

LAB171

 

Collect

One 5.0 mL gold or red top with gel (SST), (clot activator serum).

Pediatric Collection

1.5 mL blood collected in a gold or red top with gel (SST), (clot activator serum) or other serum tube.

Unacceptable Conditions

Plasma samples; sample not properly identified; insufficient sample volume.

Storage/Transport Temperature

Internal: Allow sample to clot for 30 minutes, then deliver to lab immediately.
Offsite: Allow sample to clot 30 minutes prior to centrifugation. Centrifuge within 1 hour of collection. Send at 2-8 degrees C.

Stability (from collection to initiation)

Before centrifugation: 1 hour.

After centrifugation: Ambient, 3 hours; Refrigerated, 24 hours

Serum aliquot: Ambient, 3 hours; Refrigerated, 24 hours; Frozen (-20 degrees C): 5 months.

Remarks

Avoid collection after prostatic manipulation.

Performed by

PCL Clinical Laboratory - Core

Ordering

Performed

Daily

Methodology

Chemiluminescent EIA

Reported

Same day

Synonyms

  • -776
  • LAB171
Result Interpretation

Reference Interval

PSA, total, healthy males without prostatectomy: 0.00 - 4.00 ng/mL

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

84153; 84154

Pseudocholinesterase Total

LAB965

Collect

Serum separator tube, lavender (EDTA), or pink (K2EDTA).

Patient Preparation

Specimen must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room.

Specimen Preparation

Allow serum specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transport 0.5 mL serum or plasma. (Min: 0.1 mL)

Unacceptable Conditions

Whole blood on clot. Hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months

Remarks

Plasma values are slightly lower than serum.

Performed

Mon-Fri

Methodology

Quantitative Enzymatic

Reported

Between 1 and 4 days

Synonyms

  • Cholinesterase, Serum or Plasma
  • Serum Cholinesterase (Pseudochol)
  • Cholinesterase (Pseudo), Total
  • CHE-P
  • LAB965

Ordering Recommendations

Acceptable test for determining acute exposure to organophosphate insecticides. Preferred test is Insecticide Exposure Panel (0020175).

Reference Interval

2,900-7,100 U/L

CPT Codes

82480
Collection

LAB965

Collect

Serum separator tube, lavender (EDTA), or pink (K2EDTA).

Patient Preparation

Specimen must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room.

Specimen Preparation

Allow serum specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transport 0.5 mL serum or plasma. (Min: 0.1 mL)

Unacceptable Conditions

Whole blood on clot. Hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months

Remarks

Plasma values are slightly lower than serum.
Ordering

Performed

Mon-Fri

Methodology

Quantitative Enzymatic

Reported

Between 1 and 4 days

Synonyms

  • Cholinesterase, Serum or Plasma
  • Serum Cholinesterase (Pseudochol)
  • Cholinesterase (Pseudo), Total
  • CHE-P
  • LAB965

Ordering Recommendations

Acceptable test for determining acute exposure to organophosphate insecticides. Preferred test is Insecticide Exposure Panel (0020175).
Result Interpretation

Reference Interval

2,900-7,100 U/L
Administrative

CPT Codes

82480

PTH INTACT WITH CALCIUM

LAB813

PTH W CA

 

Collect

One 4.5 mL Green top tube with gel separator (PST).

Pediatric Collection

2 mL whole blood.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Centrifuge within 30 minutes of collection. Send at 2-8 degrees C.

Stability (from collection to initiation)

PTH (whole blood)- Ambient: 2 hours.

 

PTH (plasma)- Ambient: 8 hours; Refrigerated: 48 hours; Frozen: unacceptable.

Calcium (plasma) - Ambient: 7 days; Refrigerated: 22 days; Frozen (-20 degrees C): 1 year.

Performed by

PCL Clinical Laboratory - Core

Notes

Request this test for report of both Parathyroid Hormone and Total Calcium values.

Performed

Daily

Methodology

PTH by Chemiluminescent Immunoassay and Calcium by Indirect ISE

Reported

Daily

Synonyms

  • Parathyroid Homone, intact, with Calcium
  • LAB813
  • PTHI
  • PTH W CA

Reference Interval

Parathyroid hormone, intact, ages 19 - 67 years: 12 - 88 pg/mL.

 

Calcium: 8.5 - 10.3 mg/dL

Interpretive Data

Reference range of PTH not established for subjects under 19 years or over 67 years of age.

Performed by

PCL Clinical Laboratory - Core

CPT Codes

82310; 83970

Collection

LAB813

PTH W CA

 

Collect

One 4.5 mL Green top tube with gel separator (PST).

Pediatric Collection

2 mL whole blood.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Centrifuge within 30 minutes of collection. Send at 2-8 degrees C.

Stability (from collection to initiation)

PTH (whole blood)- Ambient: 2 hours.

 

PTH (plasma)- Ambient: 8 hours; Refrigerated: 48 hours; Frozen: unacceptable.

Calcium (plasma) - Ambient: 7 days; Refrigerated: 22 days; Frozen (-20 degrees C): 1 year.

Performed by

PCL Clinical Laboratory - Core

Notes

Request this test for report of both Parathyroid Hormone and Total Calcium values.

Ordering

Performed

Daily

Methodology

PTH by Chemiluminescent Immunoassay and Calcium by Indirect ISE

Reported

Daily

Synonyms

  • Parathyroid Homone, intact, with Calcium
  • LAB813
  • PTHI
  • PTH W CA
Result Interpretation

Reference Interval

Parathyroid hormone, intact, ages 19 - 67 years: 12 - 88 pg/mL.

 

Calcium: 8.5 - 10.3 mg/dL

Interpretive Data

Reference range of PTH not established for subjects under 19 years or over 67 years of age.

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

82310; 83970

PTH INTRAOPERATIVE

LAB4866

ORPTH

Collect

One 4 mL Purple top tube (EDTA).

Also acceptable: One 6 mL Plain red top tube submitted on ice. NOTE: The addtional time required for clotting of serum samples will lengthen the time needed to obtain a PTH result.

Pediatric Collection

0.5 mL plasma/serum..

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; samples that have been thawed and refrozen.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: No offsite submission.

Stability (from collection to initiation)

EDTA- Ambient: 72 hours; Frozen (-20 degrees C): 2 months.

Serum- Ambient: Unacceptable; Refrigerated: 8 hours; Frozen (-20 degrees C): 2 months.

Remarks

Assays for intraoperative PTH samples must be scheduled in advance to assure optimum analysis speed during the surgery. To verify an intraoperative decline in PTH production after resection, it is recommended that two or more samples be collected at least 5-10 minutes apart.

Sample conditions such as hemolysis, icterus, lipemia, dilution with EDTA (unfilled EDTA tube) will affect results and will be noted in the result report.

Performed by

PCL Clinical Laboratory - Core

Performed

Mon - Fri, dayshift. Contact lab to preschedule.

Methodology

Chemiluminescent Immunoassay

Reported

Within 1 hour of receipt

Synonyms

  • ORPTH
  • LAB4866

Reference Interval

There is no normal range for the intra-operative PTH assay. The surgery is considered successful if the "post" PTH result is 50% less than the "pre" PTH result.

Performed by

PCL Clinical Laboratory - Core

CPT Codes

83970-59
Collection

LAB4866

ORPTH

Collect

One 4 mL Purple top tube (EDTA).

Also acceptable: One 6 mL Plain red top tube submitted on ice. NOTE: The addtional time required for clotting of serum samples will lengthen the time needed to obtain a PTH result.

Pediatric Collection

0.5 mL plasma/serum..

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; samples that have been thawed and refrozen.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: No offsite submission.

Stability (from collection to initiation)

EDTA- Ambient: 72 hours; Frozen (-20 degrees C): 2 months.

Serum- Ambient: Unacceptable; Refrigerated: 8 hours; Frozen (-20 degrees C): 2 months.

Remarks

Assays for intraoperative PTH samples must be scheduled in advance to assure optimum analysis speed during the surgery. To verify an intraoperative decline in PTH production after resection, it is recommended that two or more samples be collected at least 5-10 minutes apart.

Sample conditions such as hemolysis, icterus, lipemia, dilution with EDTA (unfilled EDTA tube) will affect results and will be noted in the result report.

Performed by

PCL Clinical Laboratory - Core
Ordering

Performed

Mon - Fri, dayshift. Contact lab to preschedule.

Methodology

Chemiluminescent Immunoassay

Reported

Within 1 hour of receipt

Synonyms

  • ORPTH
  • LAB4866
Result Interpretation

Reference Interval

There is no normal range for the intra-operative PTH assay. The surgery is considered successful if the "post" PTH result is 50% less than the "pre" PTH result.

Performed by

PCL Clinical Laboratory - Core
Administrative

CPT Codes

83970-59

PTH-RELATED PROTEIN (PTHrP)

LAB704

 

Collect

Protease Inhibitor tube (PPACK; Phe-Pro-Arg-chlormethylketone) - (ARUP supply #49662), available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.

Specimen Preparation

Mix well. Separate from cells within 1 hour of collection. Transfer 1.5 mL plasma to an ARUP Standard Transport Tube. (Min: 0.7 mL)

Unacceptable Conditions

Grossly hemolyzed specimens.

Storage/Transport Temperature

Frozen. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 3 months

Performed by

PCL Clinical Laboratory

Notes

Amino (N)- and carboxy (C)-terminus PTHrP fragments, such as those produced by some patients with renal insufficiency, do not interfere with this assay.

Performed

Sun, Mon, Wed, Fri

Methodology

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Reported

2-6 days

Synonyms

  • PTHrP secretion
  • PTH Related Peptide
  • Humoral Hypercalcemia of Malignancy Factor
  • Parathyroid Hormone Related Protein
  • PTHRP, Plasma
  • HHM
  • PTH-RP
  • Parathyroid Related Polypeptide
  • PRP
  • Parathyroid Related Protein
  • Parathyroid Hormone Related Peptide
  • PTH Related Protein
  • PTHRP

Additional Technical Information

Ordering Recommendations

Aid in the evaluation of unexplained hypercalcemia, particularly in suspected hypercalcemia of malignancy. Amino (N)- and carboxy (C)-terminus PTHrP fragments, such as those produced by some patients with renal insufficiency, do not interfere with this assay.

Reference Interval

Effective August 17, 2015
AgeMale
Female
Under 18 yearsNot establishedNot established
18 years and older0.0-2.3 pmol/L0.0-3.4 pmol/L

Performed by

PCL Clinical Laboratory

CPT Codes

82542
Collection

LAB704

 

Collect

Protease Inhibitor tube (PPACK; Phe-Pro-Arg-chlormethylketone) - (ARUP supply #49662), available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.

Specimen Preparation

Mix well. Separate from cells within 1 hour of collection. Transfer 1.5 mL plasma to an ARUP Standard Transport Tube. (Min: 0.7 mL)

Unacceptable Conditions

Grossly hemolyzed specimens.

Storage/Transport Temperature

Frozen. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 3 months

Performed by

PCL Clinical Laboratory

Notes

Amino (N)- and carboxy (C)-terminus PTHrP fragments, such as those produced by some patients with renal insufficiency, do not interfere with this assay.
Ordering

Performed

Sun, Mon, Wed, Fri

Methodology

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Reported

2-6 days

Synonyms

  • PTHrP secretion
  • PTH Related Peptide
  • Humoral Hypercalcemia of Malignancy Factor
  • Parathyroid Hormone Related Protein
  • PTHRP, Plasma
  • HHM
  • PTH-RP
  • Parathyroid Related Polypeptide
  • PRP
  • Parathyroid Related Protein
  • Parathyroid Hormone Related Peptide
  • PTH Related Protein
  • PTHRP

Additional Technical Information

Ordering Recommendations

Aid in the evaluation of unexplained hypercalcemia, particularly in suspected hypercalcemia of malignancy. Amino (N)- and carboxy (C)-terminus PTHrP fragments, such as those produced by some patients with renal insufficiency, do not interfere with this assay.
Result Interpretation

Reference Interval

Effective August 17, 2015
AgeMale
Female
Under 18 yearsNot establishedNot established
18 years and older0.0-2.3 pmol/L0.0-3.4 pmol/L

Performed by

PCL Clinical Laboratory

Administrative

CPT Codes

82542

PTT

LAB325

aPTT

 

Collect

One 2.7 mL blue top (3.2% sodium citrate).

Also acceptable: One 1.8 mL blue top tube (3.2% sodium citrate).

All blue top tubes collected for coagulation assays that do not have a blood culture collected first must have a discard tube collected prior to filling. The discard tube should be another blue top tube in which greater than 1 mL of blood is collected.

Pediatric Collection

0.5 mL platelet poor plasma.

Unacceptable Conditions

Clotted sample; tube fill volume less than 70% or greater than 110%; more than 4 hours after collection; specimen not properly identified; insufficient sample volume; incorrect container.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Separate plasma from cells as soon as possible. Place plasma in an aliquot container and transport to lab frozen.

Stability (from collection to initiation)

Whole blood: Ambient, 4 hours.

 

Platelet-poor plasma aliquot: Ambient, 4 hours; Refrigerated, 4 hours; Frozen (-20 degrees C), 2 weeks; Frozen (-70 degrees C), 6 months.

Remarks

Reference range is established using 3.2% sodium citrate. Elevation of the APTT in the absence of heparin may be due to numerous abnormalities such as coagulation factor deficiencies, coagulation factor inhibitors, and lupus inhibitors.

Performed by

PCL Clinical Laboratory - Specials (Coagulation)

Performed

Daily

Methodology

Mechanical clot detection

Reported

Same day

Synonyms

  • LAB325
  • APTT
  • ACTIVATED PARTIAL THROMBOPLASTIN TIME

Reference Interval

Effective 09/07/2016:

23.7 - 32.3 seconds

Effective 08/31/2015 - 09/06/2016:

24.2 - 33.9 seconds

Effective 09/18/2014 - 08/30/2015:

27.6 - 34.1 seconds

Before 09/18/2014:

24.6 - 34.1 seconds

Interpretive Data

Effective 09/07/2016:

Therapeutic range for heparin monitoring is 80.7 - 122.7 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Effective 08/31/2015 - 09/06/2016:

Therapeutic range for heparin monitoring is 76.1 - 126.5 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Effective 02/27/2015 - 08/30/2015:

Therapeutic range for heparin monitoring is 79.0 - 140.0 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Before  02/27/2015:

Therapeutic range for heparin monitoring is 70 - 98 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

 

Performed by

PCL Clinical Laboratory - Specials (Coagulation)

CPT Codes

85730

Collection

LAB325

aPTT

 

Collect

One 2.7 mL blue top (3.2% sodium citrate).

Also acceptable: One 1.8 mL blue top tube (3.2% sodium citrate).

All blue top tubes collected for coagulation assays that do not have a blood culture collected first must have a discard tube collected prior to filling. The discard tube should be another blue top tube in which greater than 1 mL of blood is collected.

Pediatric Collection

0.5 mL platelet poor plasma.

Unacceptable Conditions

Clotted sample; tube fill volume less than 70% or greater than 110%; more than 4 hours after collection; specimen not properly identified; insufficient sample volume; incorrect container.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Separate plasma from cells as soon as possible. Place plasma in an aliquot container and transport to lab frozen.

Stability (from collection to initiation)

Whole blood: Ambient, 4 hours.

 

Platelet-poor plasma aliquot: Ambient, 4 hours; Refrigerated, 4 hours; Frozen (-20 degrees C), 2 weeks; Frozen (-70 degrees C), 6 months.

Remarks

Reference range is established using 3.2% sodium citrate. Elevation of the APTT in the absence of heparin may be due to numerous abnormalities such as coagulation factor deficiencies, coagulation factor inhibitors, and lupus inhibitors.

Performed by

PCL Clinical Laboratory - Specials (Coagulation)

Ordering

Performed

Daily

Methodology

Mechanical clot detection

Reported

Same day

Synonyms

  • LAB325
  • APTT
  • ACTIVATED PARTIAL THROMBOPLASTIN TIME
Result Interpretation

Reference Interval

Effective 09/07/2016:

23.7 - 32.3 seconds

Effective 08/31/2015 - 09/06/2016:

24.2 - 33.9 seconds

Effective 09/18/2014 - 08/30/2015:

27.6 - 34.1 seconds

Before 09/18/2014:

24.6 - 34.1 seconds

Interpretive Data

Effective 09/07/2016:

Therapeutic range for heparin monitoring is 80.7 - 122.7 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Effective 08/31/2015 - 09/06/2016:

Therapeutic range for heparin monitoring is 76.1 - 126.5 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Effective 02/27/2015 - 08/30/2015:

Therapeutic range for heparin monitoring is 79.0 - 140.0 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

Before  02/27/2015:

Therapeutic range for heparin monitoring is 70 - 98 seconds. This range represents 0.3 - 0.7 U/mL unfractionated heparin.

 

Performed by

PCL Clinical Laboratory - Specials (Coagulation)

Administrative

CPT Codes

85730

PYRUVATE

LAB744

 

Collect

Green (sodium or lithium heparin).

Patient Preparation

Patient should be fasting and at complete rest. Patient should avoid any exercise of the arm or hand before or during collection. Draw the specimen without the use of a tourniquet or within three minutes of applying the tourniquet, but before releasing the tourniquet.

Specimen Preparation

1) Immediately after blood is drawn, add exactly 1 mL whole blood to a chilled pyruvate collection tube containing 2 mL 8 percent (w/v) perchloric acid (ARUP supply #16567) available online through eSupply using ARUP Connect™ or contact Client Services at (800) 522-2787.
2) Mix well for 30 seconds then place in an ice bath for 10 minutes.
3) Centrifuge for 10 minutes at 1500 x g.
4) Decant 2 mL supernatant to an ARUP Standard Transport Tube and freeze. (Min: 1 mL)

Unacceptable Conditions

If less than 1 mL of blood is added to collection tube, pH of the supernatant will be too low for testing.

Storage/Transport Temperature

Frozen.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: 2 days; Frozen: 4 weeks

Performed by

PCL Clinical Laboratory

Performed

Sun-Sat

Methodology

Quantitative Enzymatic

Reported

1-2 days

Synonyms

  • Pyruvate
  • Pyruvic Acid
  • LAB744

Ordering Recommendations

An isolated pyruvic acid concentration has little clinical value.  Preferred test is Lactate to Pyruvate Ratio, Whole Blood (2007935), which reports concentrations for lactate, pyruvate, and L:P ratio on the same specimen.

Reference Interval

0.030-0.107 mmol/L (venous blood)

Performed by

PCL Clinical Laboratory

CPT Codes

84210
Collection

LAB744

 

Collect

Green (sodium or lithium heparin).

Patient Preparation

Patient should be fasting and at complete rest. Patient should avoid any exercise of the arm or hand before or during collection. Draw the specimen without the use of a tourniquet or within three minutes of applying the tourniquet, but before releasing the tourniquet.

Specimen Preparation

1) Immediately after blood is drawn, add exactly 1 mL whole blood to a chilled pyruvate collection tube containing 2 mL 8 percent (w/v) perchloric acid (ARUP supply #16567) available online through eSupply using ARUP Connect™ or contact Client Services at (800) 522-2787.
2) Mix well for 30 seconds then place in an ice bath for 10 minutes.
3) Centrifuge for 10 minutes at 1500 x g.
4) Decant 2 mL supernatant to an ARUP Standard Transport Tube and freeze. (Min: 1 mL)

Unacceptable Conditions

If less than 1 mL of blood is added to collection tube, pH of the supernatant will be too low for testing.

Storage/Transport Temperature

Frozen.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: 2 days; Frozen: 4 weeks

Performed by

PCL Clinical Laboratory

Ordering

Performed

Sun-Sat

Methodology

Quantitative Enzymatic

Reported

1-2 days

Synonyms

  • Pyruvate
  • Pyruvic Acid
  • LAB744

Ordering Recommendations

An isolated pyruvic acid concentration has little clinical value.  Preferred test is Lactate to Pyruvate Ratio, Whole Blood (2007935), which reports concentrations for lactate, pyruvate, and L:P ratio on the same specimen.
Result Interpretation

Reference Interval

0.030-0.107 mmol/L (venous blood)

Performed by

PCL Clinical Laboratory

Administrative

CPT Codes

84210

PYRUVATE KINASE

LAB1087

 

Collect

Lavender (EDTA) or pink (K2EDTA). Also acceptable: Green (sodium heparin) or yellow (ACD Solution A or B).

Specimen Preparation

Do not freeze. Transport 1 mL whole blood.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: 20 days; Frozen: Unacceptable

Notes

Patients who have recently received transfusions have normal donor cells that may mask PK deficient erythrocytes.

Performed

Sun-Sat

Methodology

Quantitative Enzymatic

Reported

1-2 days

Synonyms

  • LAB1087
  • PK
  • PYRKIN
  • PYRUVATE

Ordering Recommendations

Preferred initial test for screening for pyruvate kinase deficiency.

Reference Interval

4.6-11.2 U/g Hb

CPT Codes

84220
Collection

LAB1087

 

Collect

Lavender (EDTA) or pink (K2EDTA). Also acceptable: Green (sodium heparin) or yellow (ACD Solution A or B).

Specimen Preparation

Do not freeze. Transport 1 mL whole blood.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: Unacceptable; Refrigerated: 20 days; Frozen: Unacceptable

Notes

Patients who have recently received transfusions have normal donor cells that may mask PK deficient erythrocytes.
Ordering

Performed

Sun-Sat

Methodology

Quantitative Enzymatic

Reported

1-2 days

Synonyms

  • LAB1087
  • PK
  • PYRKIN
  • PYRUVATE

Ordering Recommendations

Preferred initial test for screening for pyruvate kinase deficiency.
Result Interpretation

Reference Interval

4.6-11.2 U/g Hb
Administrative

CPT Codes

84220