Test Code IPPNH Paroxysmal Nocturnal Hemoglobinuria (PNH) Evaluation by Flow Cytometry
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) |
5 days |
Frozen (-20°C) |
not acceptable |
Collection Instructions
Collect specimen per standard laboratory collection procedures.
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 24 hours. If transport is delayed, retain specimens in a refrigerator.
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 |
not applicable |
|
|
|
Critical Values
not applicable
Clinical Indications
- Testing for Paroxysmal Nocturnal Hemoglobinuria (PNH) diagnosis and follow-up.
Test Components
CD14 monocytes and CD24 granulocytes, CD59 erythrocytes, pathologist's interpretation
Methodology
Flow Cytometry
CPT Codes
88184, 88185 x5, 88187
LOINC Codes
Not applicable
Turnaround Time
Turnaround times are relative to the time the specimen is received in the test laboratory.
STAT Turnaround Time: not available
Routine Turnaround Time: 48 hours
Testing Schedule: Monday - Friday 8:00 am - 5:00 pm and Saturday 8:00 am - 3:00 pm
Synonyms/Search Keywords
PNH testing
Last Reviewed Date
9/5/2024