Hb Disorder Thalassemia Reflexive Panel

General Information

Lab Name

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

Forms & Requisitions

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

Guidelines

Red Cell Disorders Laboratory

Method

See individual components

Reference Range

See individual components

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

Receiving Instructions: 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.

Misc Sendout

Performance

Lab Department

Red Cell Disorders(RCD)

Frequency

Monday-Friday

Available STAT?

Performing Location(s)

HMC	Red Cell Disorders 206-520-4600 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

Billing & Coding

CPT Codes: 83020x2, 83021
LOINC: 18723-7
Interfaced Order Code: UOW4513