ARUP's Laboratory Test Directory

0049010: Acid Hemolysin (Ham Test)

Test Mnemonic: HAM
Methodology: Visual Identification of Hemolysis

Performed: Mon-Fri

Reported: 1-2 days

Specimen Required:  
Collect: One 10 mL plain red and one 5 mL lavender (EDTA) or pink (K2EDTA). (Min: 3 mL plain red and 3 mL EDTA)

Transport: 3 mL serum (separated from cells) and 5 mL whole blood (EDTA) at 20-25°C.  (Min: 1.5 mL serum and 1 mL whole blood). Send Sunday through Thursday only.

Pediatric Collection/Transport: 1.5 mL serum (separated from cells) and 1 mL whole blood (EDTA) at 20-25°C.

Remarks: Indicate patient's blood type on test request form. Specimens must be received within 24 hours of collection and testing must be performed within 48 hours of collection.  Separate serum ASAP.

Unacceptable Conditions: Specimens which have not had the serum separated from the cells ASAP after collection.

Stability: After separation from cells: Ambient: 24 hours 

Reference Interval:
Negative

CPT Code(s):
85475

 

 

 
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