Hemoglobin (Hb) Solubility With Reflex to Hemoglobinopathy Fractionation Cascade, Blood

CPT 85660. If reflex testing is performed, concomitant CPT codes/charges will apply.
Synonyms
  • Hb Solubility
  • Sickle Cell Preparation
  • Sickle Cell Solubility Test
  • Sickle Cell Test
  • Sickle Prep
  • Sickledex™

Test Details

Use

Qualitative determination of presence of hemoglobin S; detect sickling hemoglobins; evaluate hemolytic anemia, undiagnosed hereditary anemia with morphologic (sickle-like) abnormalities on peripheral blood smear

Test Includes

Hemoglobin (Hb) solubility and automatic reflex to hemoglobin (Hb) fractionation blood (at additional charge), if positive.

Methodology

Sodium hydrosulfite reduction

References

Chehab FF, Kan YW. Detection of sickle cell anaemia mutation by colour DNA amplification. Lancet. 1990 Jan 6; 335(8680):15-17. 1967329
Miale JB. Laboratory Medicine: Hematology. 6th ed. St Louis, Mo: Mosby-Year Book Inc;1982:624-625.

Additional Information

Specimen Requirements

Information on collection, storage, and volume

Specimen

Whole blood

Volume

1 mL

Minimum Volume

0.6 mL (Note: This volume does not allow for repeat testing.)

Container

Lavender-top (EDTA) tube; capillary puncture: three microhematocrit tubes

Note: Because this profile reflexes to Hemoglobinopathy Fractionation Cascade [121690] when positive, only a Lavender-top (EDTA) tube is allowed.

Storage Instructions

Room temperature

Causes for Rejection

Specimen other than whole blood received; clotted specimen

Collection

To avoid delays in turnaround time, please submit a separate lavender-top tube for each test requiring a lavender-top.