Hb Disorder Thalassemia Reflexive Panel

General Information

Lab Name

Hb Disorder Thalassemia Reflexive Panel

Lab Code

HBTHAL

Epic Name

Hb Disorder Thalassemia Reflexive Panel

Description

Diagnostic testing for thalassemia and hemoglobinopathies with interpretation. Includes hemoglobin electrophoresis by isoelectric focusing, HPLC quantification of hemoglobins F and A2, and quantification of hemoglobins S, C, D, or E if present. Additional testing is performed for patients with microcytic RBC indices at added cost.

Call the Red Cell Disorders Laboratory for information: 206 744-3549. Provide Ethnic background of patient. Please submit this information on a Thalassemia Clinical Data Sheet. The form can be found on the Laboratory Medicine website: Thalassemia Data Sheet

Synonyms

Hemoglobin Electrophoresis, Hemoglobin Phenotype, Hemoglobin Variant Interpretation, Hemoglobinopathy, Microcytic RBC, Quantitative Hemoglobin Electrophoresis, red cell, Thal/Hemoglobinopathy, Thalassemia Workup

Components

Code Name
HBA2Q Hemoglobin A2 Quantification by HPLC
HBF Hemoglobin F Quant by HPLC
HBDET Hemoglobins Detected
ZZNTRP Thal./Hemoglobinopathy Interp.
ZZNTF Thalassemia Screen Result
DATE1 Date Formal Report Sent
PATHF Pathologist Consult Hb/Thal Testing

Interpretation

Method

See individual components

Reference Range

See individual components

Guidelines

Ordering & Collection

Specimen Type

Blood

Collection

3 mL LAVENDER TOP tube


Pediatric draw: 3 LAVENDER TOP MICROTAINERS

Forms & Requisitions

Thalassemia Data Sheet

Quantity

requested: 3 mL whole blood
minimum: 2.5 mL whole blood

Processing

Refrigerate Lavender tube

Note: If sample is short or if no CBC data is available, accept sample anyway. DO NOT QNS or cancel. RCD will do as many tests as possible. Write "No CBC" on request form or MayoAccess batch sheet.


Caution: Not for use by UWNC or UW Medicine locations unless current CBC is ordered (example CBD, CBANC, or CBC). For UWNC or UW Medicine Clinics or inpatients, see HBTHLI.


Stability: EDTA: Refrigerated, 7 days. Ambient, 2 days

Unacceptable: Other anticoagulants, Frozen specimen.

Performance

LIS Dept Code

Red Cell Disorders (RCD)

Performing Location(s)

HMC Red Cell Disorders
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

Frequency

Monday-Friday

Available STAT?

No

Billing & Coding

CPT codes

83020x2, 83021

LOINC

18723-7

Interfaced Order Code

UOW4513