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Lab Test Dictionary

Acid Sphingomyelinase, Leukocytes (ASMW)


ASM Deficiency, Niemann-Pick, Niemann Pick

Specimen Type


Performing Lab

Mayo Medical Laboratory

Epic ID

Other Reference Test

Standard TAT

5 to 10 days

Collection Information

Specimen Required

6 mL blood

Container Type

Yellow top ACD B

Collection Instructions

Collect Mon-Wed or Thurs before noon. Do not collect before a holiday. Specimen must arrive at Mayo asap, and within 6 days of collection.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Refrigerated=6 days, Room Temp=6 days

Rejection Criteria

Gross hemolysis

Test Volume Required

6 mL blood

Minimum Test Volume

2 mL blood

Processing Instructions

Ship whole blood Refrigerated as soon as possible

CPT Codes

82657 (not genetic)


cas 1/24/24