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Beta-Hexosaminidase, Serum

Test ID: HEXO

Test

Method

Enzymatic Fluorimetric

Report Includes

β-Hexosaminidase Total; Hexosaminidase-B; % Hexosaminidase-B

Specimens

Serum

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

30-Sep-2019

Specimen

Specimens

Serum

Collection Containers

Preferred

Male: Serum;Female: Plasma

Sample Volume

2 mL

Collection & Handling

Handling Information

Separate and freeze immediately. Store and send frozen.

Additional Information

Indicate patient's age, gender and race. For female patient indicate if pregnant or on oral contraceptives and submit 2 mL Plasma (Heparin) instead of serum. Ontario patients Tay-Sachs Carrier Detection: Please submit completed Tay-Sachs Requistion.

Stability

If the specimen thaws, it is unsuitable for analysis.

Rejection Criteria

Specimen Not frozen

Test Version

30-Sep-2019

Performance / Interpretation

Method

Enzymatic Fluorimetric

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
β-Hexosaminidase nmol/h/mL
  • 439 - 1300
Hexosaminidase-B nmol/h/mL
  • See % Hexosaminidase-B
% Hexosaminidase-B % of Total
  • 30 - 45
  • Interpreted on Report

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

30-Sep-2019

Interface / Setup

Test Version

30-Sep-2019