Home
HelpOrder Code LAB1205 Aldolase, Serum
Additional Codes
Mayo Test Code: ALS
Reporting Name
Aldolase, SUseful For
Detection of muscle disease
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Serum RedSpecimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
Collection Container/Tube: Red top (serum gel/SST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Within 1 hour of collection, centrifuge and aliquot serum into a plastic vial.
2. Send refrigerated.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | Refrigerated (preferred) | 7 days |
| Frozen | 60 days |
Reference Values
<18 years: <14.5 U/L
≥18 years: <7.7 U/L
Day(s) Performed
Monday through Sunday
CPT Code Information
82085
Method Description
The aldolase activity is determined from the rate at which reduced nicotinamide adenine dinucleotide (NADH) is oxidized to NAD(+) and is measured photometrically by a decrease in absorbance. For each mole of substrate hydrolyzed, 2 moles of coenzyme (NADH) are oxidized. This 1:2 ratio is applied in the calculation of aldolase activity. Lactate dehydrogenase is present in the reagent for the purpose of eliminating interference from endogenous pyruvate in the specimen.(Package insert: Aldolase Reagent. Roche Diagnostics; V 5.0, 01/2021)
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Method Name
Photometric
Forms
If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.