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Test ID: HMAX    
Histochemistry of Sent-In Muscle Specimen Maximum

Specimen Type Describes the specimen type needed for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Send specimen Monday, Tuesday, or Wednesday only.


Specimen Type: Muscle biopsy specimen

Collection Instructions: Prepare and transport specimen per instructions in Muscle Biopsy Specimen Preparation Sheet in Special Instructions.

Additional Information:

1. Contact Dr. Andrew Engel (Director of the Muscle Laboratory at Mayo Clinic) or Dr. Duygu Selcen (Associate Director of the Muscle Laboratory) for special problems to maximize benefit of the muscle biopsy.

2. Muscle Biopsy Shipping Kits (Supply T541) are available.


1. Muscle Histochemistry Patient Information Sheet (Supply T361) in Special Instructions.

2. If not ordering electronically, submit a Pathology/Cytology Request Form (Supply T246) with the specimen.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.


Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected










Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
TissueFrozen (preferred)