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The University of Chicago Medicine Laboratories

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Specimen Collection and Handling

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Mayo Clinic Laboratories

Test Code IPF Immature Platelet Fraction

Specimen and Container/Tube

Specimen Type: Whole blood

Preferred Specimen: lavender top

Other Acceptable specimens: not applicable 

Volume

Preferred Volume: 4.0 mL

Minimum Volume: 1.0 mL

Specimen Stability

Storage Temperature

Stability

Room temperature

(20 - 25°C)

 24 hours 

Refrigerated

(2 - 10°C)

 24 hours 

Frozen

(-20°C)

not acceptable

Specimen Handling and Transport Instructions

UCMC Onsite Instructions: Collect specimen per standard collection procedure and send to laboratory immediately.

UCMC Offsite and UC MedLab Outreach Instructions: Collect specimen per standard collection procedure and send to laboratory immediately. Specimens must be received within 8 hours. If transport is delayed, refrigerate specimens prior to transport. 

Rejection Criteria

  • Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits. 
  • Frozen or heated specimens will be rejected
  • Clotted or quantity not sufficient specimens are not suitable for testing and will be rejected 

 

Reference Values

Analyte

Age

Sex

Reference Range

IPF

All

Male and female

0.9 - 4.8 %

Turnaround Time

Turnaround times are relative to the time the specimen is received in the test laboratory. 

 

STAT Turnaround Time: 60 minutes

Routine Turnaround Time: 240 minutes

 

Testing Schedule: 24/7

Clinical Indications

  • Measure of thrombopoietic activity
  • Ratio of immature platelets to the total number of platelets in a patient's peripheral blood 

Test Components

Immature Platelet Fraction

Methodology

Sysmex XN

CPT Codes

85055

Additional Information

If significant platelet clumps are present in lavender EDTA specimen, a sodium citrate blue top tube may be requested by the laboratory for accurate platelet count. 

Collection Instructions

Collect specimen per standard laboratory collection procedures. 

Critical Values

Not applicable

LOINC Codes

IPF 71693-6

Synonyms/Search Keywords

Immature platelet count 

Last Reviewed Date

8/12/2024