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Test Code OBP.BASIC OB PANEL BASIC

Important Note

If order requires Chlamydia and Neisseria by PCR, order OBP.EXT “Obstetric Panel with Chlamydia trachomatis and Neisseria gonorrhoeae.”

  • 2 SERUM and 2 WHOLE BLOOD tubes are required.
  • CBC specimen must arrive within 24 hours of draw.

Specimen Requirements

2 SERUM and 2 WHOLE BLOOD TUBES ARE REQUIRED

 

Antibody Screen, Type and Rh

  1. Submit only 1 of the following specimens:
  2. Label specimen appropriately (blood for type and screen).
  3. Plain, red-top tube or serum gel tube is not acceptable.

Preferred:

Pink-Top Tube

Container/Tube: Pink-top (EDTA) “crossmatch” tube(s)

Specimen Volume: 6 mL to 7 mL (minimum volume: 4 mL) of whole blood

Collection Instructions: Forward promptly in original tube(s).

    

Alternate:

Lavender-Top Tube

Container/Tube: Lavender-top (EDTA) tube(s)

Specimen Volume: 6 mL to 7 mL (minimum volume: 4 mL) of whole blood

Collection Instructions: Forward promptly in original tube(s).

  

CBC

  1. Specimen must arrive within 24 hours of draw.
  2. Label specimen appropriately (blood for CBC).         

Container/Tube: Lavender-top (EDTA) tube(s) with HemogardTM lid or lavender MICROTAINER® 

Specimen Volume: 3 mL (minimum volume: 1 mL/pediatric: 0.5 mL) of whole blood.

Collection Instructions:

  1. Invert tube(s) several times to mix blood.
  2. Do not centrifuge.
  3. Forward promptly in original tube(s).

 

Specimen Rejection:

  • Clotted or Hemolyzed specimen
  • Do Not Centrifuge 

Anti-HCV, HBsAg, HIV

  1. Submit only 1 of the following specimens.
  2. Label specimen appropriately (serum for anti-HCV, HBsAg and HIV).
  3. Spin down within 4 hours of draw.

Preferred:

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum

Collection Instructions: Spin down within 4 hours of draw.

    

Alternate:

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum

Collection Instructions: Spin down within 4 hours of draw.    

 

Rubella, Syphilis

  1. Submit only 1 of the following specimens
  2. Label specimen appropriately (serum for Rubella and Syphilis).
  3. Spin down within 2 hours of draw. 

Preferred:

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum.

Collection Instructions: Spin down within 2 hours of draw.

 

Alternate:

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 2 mL (minimum volume: 1 mL) of serum

Collection Instructions: Spin down within 2 hours of draw.

 

Specimen Rejection:

  • Lipemic, icteric or contaminated specimens.

Day(s) Test Set Up

 

TEST Name Test Set Up
Antibody Screen Monday through Sunday
CBC (Complete Blood Count) Monday through Sunday
Hepatitis B Surface Antigen (HBsAg) Monday through Friday
Hepatitis C Virus Antibody (Anti-HCV) Monday through Friday
HIV Types 1 and 2 Antibody Screen Tuesday and Thursday
Rubella IgG Antibody Monday through Friday
Syphilis Antibody, IgG Tuesday and Thursday
Type and Rh Monday through Sunday
   

Specimen Stability

 

TEST Specimen Type Temperature Time
Antibody Screen Whole Blood Refrigerate  
Type and Rh Whole Blood Refrigerate  
Rubella Serum Refrigerate  
Syphillis Serum

Refrigerate

Frozen

4 days

30 days

CBC Whole Blood

Ambient

Refrigerate

< 8 hours

< 48 hours

 HBsAg and Anti-HCV Serum 

Refrigerate 

 <48 hours

       

Reference Values

See individual test listings via link under Methodology

Performing Laboratory

Logan Health Medical Center Laboratory

Test Classification and CPT Coding

85027-CBC

86703-HIV

86762-Rubella antibody screen

86780-Treponema pallidum

86803-Hepatitis C

86850-Antibody screen, RBC

86900-ABO

86901-Rh (D)

87340-HbsAg

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