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Latex Agglutination

Clinical System Name

Antigen Detection (Strep Group B)

Synonyms

group b strep
ID By Serology
latex agglutination
strep b
Strep Group B Antigen Detection

Sample Requirements

Specimen: Whole Blood 

Container(s): Red

Preferred Vol: 2 mL 

Minimum Vol: 0.5 mL 

 

 

Specimen: CSF

Container(s): Sterile Screw-capped Container

Preferred Vol: 1 mL 

Minimum Vol: 0.3 mL 

 

Note: The Latex agglutination test is available for CSF or serum. Note that the preferred specimen is CSF. Gel separator tubes are unacceptable for testing.

 

Processing Instructions

Reject due to: Received room temperature or gel seaprator.

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Transfer CSF into plastic aliquot tube. For a serum sample, spin and aliquot serum into plastic aliquot tube. Store each sample type in CPA freezer send-outs rack.

 

Off-site collection:  Transfer CSF into plastic aliquot tube. For a serum sample, spin and aliquot serum into plastic aliquot tube. Transport each sample type frozen.

Stability

Specimen Type Temperature Time
Serum or CSF Room temp 2 h
  Refrigerated 48 h
  Frozen 7 d

 

Availability

STAT Performed TAT
N Set-up daily at Quest. 2 -3 d

 

Performing Laboratory

Quest Diagnostics - Nichols Institute

33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

 

Phone Number: (800) 553-5445

Department

Department:  Send Outs
 

Phone Number: (206) 987-2563

 

Reference Range

Not detected

Methodology

Method: Latex Agglutination (Liatest)

Analytical Volume: 0.2 mL serum or 0.3 mL CSF

Limitations:

CPT Codes

86403

Send Out Instructions

 

Reference Test Name: Streptococcus Group B Antigen, LA
Reference Test Number: 4423
Instructions: Send out M - F with Quest courier.