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Test Code OBP.BASIC OBSTETRIC (PRENATAL) PANEL

Important Note

Panel Includes: CBC, HBSAG, HIV-1,2, HCV, SYPHILIS, & RBPG.

This test may reflex to additional tests depending upon the results of these tests. Additional fees will be added for necessary reflex tests. 

For CBC, if delay in test performance is anticipated, slides are required. Fixed slides are preferred. Appropriate comments are generated with report if sample integrity is compromised.

For CBC, Automated differential fields are not reported if manual differential is done. Manual differential is not reported if automated differential is reported.

 

Additional Codes

N.PRENTATAL

Methodology

Automated Hematology Analyzer, Automated Chemistry Analyzer, Tube & Gel, & Multiplex Flow Immunoassay (MFI)

Specimen Requirements

CBC (Performed by LHW)

EDTA Whole Blood

Container/Tube: Lavender top tube (EDTA)

Specimen Volume: Fill tube to appropriate line (Microtainers must be filled to second mark).

Collection:

  1. Prefer to receive specimen within 12 hours of collection.
  2. Prefer specimen to be stored and transported refrigerated.
  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. EDTA. 

HBSAG, HCV, HIV-1,2 (Performed by LHW)

Specimen Type: Serum or Plasma
Container/Tube: SST or Lithium Heparin
Specimen Volume: 1 mL (minimum 0.5)
Collection Instructions: 

  1. Allow specimen to clot completely if a serum tube (SST) was used.
  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube.
  3. Properly label tube with patient's name, DOB, requisition number and type of tube, i.e. LiHep or NaHep etc.

SYPHILIS/RPR (Performed by Logan Health Medical Center)

Serum

Container: SST 

Specimen Collection: 0.5 mL (minimum 0.4 mL)

  1. Allow specimen to clot completely.
  2. Separate serum (SST) from cells within 2 hours and transport refrigerated. 
  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. SST.

RBPG (Performed by Mayo)

Serum

Container: SST

Specimen Collection: 0.5 mL (minimum 0.4 mL)

  1. Allow specimen to clot completely.
  2. Separate serum (SST) from cells within 2 hours and transport refrigerated.
  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. SST.

 

Specimen Transport/Stability

Refrigerated: 24 hours (CBC); 8 hours on gel, 6 days poured off (HBSAG, HCV, HIV-1,2), 6 days (SYPHT & RBPG)

Specimen Rejection

1. Clotted specimen

2. Hemolyzed specimen

3. Exceed stability requirements

4. Underfilled tube

5. Unlabeled specimen

6. Grossly lipemic

Maximum Laboratory Time

4 days

Reference Ranges

 

 

CBCR  
WBC THOU/cmm
Newborn 9.0 - 34.0
1 week 5.0 - 21.0
1 mo 5.0 - 19.5
6 mos 6.0 - 17.5 
1 yr 6.0 - 17.0 
7 yrs 5.0 - 15.0
8 yrs 4.5 - 13.5
15 yrs 4.3 - 11.0
RBC MIL/cmm
Newborn 4.80 - 7.00
1 week 4.50 - 6.40
1 mo 3.90 - 5.90
3 mos 3.80 - 5.30
1 yr 4.00 - 5.50
10 yrs 3.80 - 5.40
15 yrs F 4.20 - 5.40
15 yrs M 4.60 - 6.20
Hemoglobin gm/dL
Newborn 16.8 - 21.2
1 week 14.3 - 22.3
1 mo 11.3 - 17.3
3 mos 9.9 - 14.5
6 mos 9.8 - 13.8
7 yrs 11.5 - 13.5
12 yrs 11.0 - 16.0
15 yrs F 12.0 - 16.0
15 yrs M 14.0 - 18.0
Hematocrit %
Newborn 53.6 - 66.4
1 week 42.5 - 62.5
1 mo 35.0 - 49.0
3 mos 30.0 - 42.0 
6 mos 30.5 - 40.5
1 yr 30.0 - 41.0
7 yrs 34.0 - 40.0 
15 yrs F  38.0 - 47.0
15 yrs M 40.0 - 54.0
MCV fL
Newborn 95 - 125
1 week 106 - 122
1 mo 85 - 115
3 mos 83 - 98
1 yr 70 - 86
6 yrs 75 - 90
8 yrs  78 - 95
15 yrs F 80 - 100
15 yrs M 84 - 102
MCH pg
Newborn 35.0 - 41.0
2 days 34.0 - 40.0
4 days 33.0 - 39.0 
9 days 32.0 - 38.0 
1 mo 28.0 - 38.0 
6 mos 26.0 - 36.0 
1 yr 23.0 - 31.0 
6 yrs 24.0 - 30.0
11 yrs 25.0 - 31.0
15 yrs F 25.7 - 34.1 
15 yrs M 28.9 - 32.3
MCHC gm/dL
Newborn 28.0 - 36.0 
1 mo 29.0 - 37.0 
1 yr 30.0 - 36.0 
6 yrs 31.0 - 37.0
8 yrs 31.0 - 36.0 
15 yrs F 28.2 - 37.6
15 yrs M 31.0 - 35.0
RDW %
Female 10.1 - 14.9
Male 10.3 - 13.9
Platelet Count  THOU/cmm
Newborn 170 - 430
1 week 168 - 392
4 yrs 200 - 400
7 yrs 140 - 440
11 yrs 130 - 400
MPV fL
  7.4 - 11.4
Neutrophils (Automated) %
Newborn 41.0 - 81.0
7 days 27.0 - 63.0
1 mo 18.0 - 52.0
6 mos  14.0 - 50.0
1 yr 13.0 - 49.0
6 yrs 33.0 - 69.0 
8 yrs 35.0 - 71.0
15 yrs 39.0 - 75.0 
Lymphocytes (Automated) %
Newborn 26.0 - 36.0
7 days 26.0 - 56.0 
1 mo 41.0 - 71.0 
6 mos 46.0 - 76.0 
1 yr 27.0 - 57.0 
8 yrs 24.0 - 54.0 
15 yrs  20. 5 - 45.5
Monocytes (Automated) %
  3.0 - 11.0
Eosinophils (Automated) %
  0.0 - 7.0
Basophils (Automated)  %
  0.0 - 1.5
Segs, Absolute ABSOLUTE
Newborn 6.0 - 26.0 
1 week 1.5 - 10.0
1 mo 1.0 - 8.5
1 yrs 1.5 - 8.5
6 yrs  1.5 - 8.0
15 yrs  1.8 - 8.0 
Lymphs, Abs (Automated) ABSOLUTE
Newborn 2.0 - 11.0 
1 week 2.0 - 17.0
1 mo 2.5 - 16.5
6 mos 4.0 - 13.5
1 yr 4.0 - 10.5
6 yrs  1.5 - 7.0 
8 yrs  1.5 - 6.8
15 yrs 1.2 - 5.2
Monocytes, Abs (Automated) ABSOLUTE
Newborn 0.8 - 1.4
1 mo 0.4 - 1.0
6 mos 0.3 - 0.9
6 yrs 0.1 - 0.6
Eos, Abs (Automated) ABSOLUTE
Newborn 0.1 - 0.7
1 week 0.2 - 0.8
1 mo 0.0 - 0.6
6 yrs 0.0 - 0.5
Baso, Abs (Automated) ABSOLUTE
Newborn 0.0 - 0.7 
1 week 0.0 - 0.1
   
Hepatitis B Surface Antigen S/CO
  Nonreactive
Antibody Screen  
  Negative
Syphilis IgG Ab w/ Reflex  
  Negative
Rubella Ab, IgG  
Vaccinated Positive ( ≥1.0 AI)
Unvaccinated Negative (≤ 0.7 AI)

 

Day(s) Test Set Up

Daily (LHW tests)

Reference Test Labs vary

Test Classification and CPT Coding

Available Upon Request

Performing Laboratory

Logan Health Whitefish Laboratory, Logan Health Medical Center & Mayo Medical Laboratories in Rochester.