Skip to main content

CD4:CD8 Ratio Profile

Test Number 505271
Test number copied
CPT 86360

Test Details

Methodology

Flow cytometry

Result Turnaround Time

1 - 3 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Test Includes

Percentage CD4+; absolute CD4+; percentage CD8+; absolute CD8+; CD4:CD8 ratio; CBC with differential

References

Centers for Disease Control and Prevention (CDC). 1997 revised guidelines for performing CD4+ T-cell determinations in persons infected with human immunodeficiency virus (HIV).MMWR. 1997 Jan 10; 46:RR-2.
Giorgi J, Kesson A, Chou CC. Immunodeficiency and infectious diseases. In: Rose N, deMacario E, Fahey J, et al, eds. Manual of Clinical Laboratory Immunology. 4th ed. Washington, DC: ASM Press;1992:chap 25.
Stevens RA, Lempicki RA, Natarajan V, et al. General immunologic evaluation of patients with immunodeficiency virus infection. In: Detrick B, Hamilton RG, Folds JD, et al, eds. Manual of Molecular and Clinical Laboratory Immunology. 7th ed. Washington, DC: ASM Press;2006:chap 95.

Custom Additional Information

HIV-1 infection results in a decrease of CD4 T cells, an increase of CD8 T cells, a decrease in the CD4:CD8 ratio, and a progressive destruction of immune function. In HIV-1 seropositive patients, enumeration of CD4 T cells may be used for prognostic purposes and to monitor disease progression and antiretroviral therapy.

Specimen Requirements

Specimen

Whole blood

Volume

Fill tube(s) to capacity.

Container

Lavender-top (EDTA) tube and yellow-top (ACD-A) or (ACD-B) tube

Collection Instructions

Invert tube 8 to 10 times immediately after collection. To preserve cellular viability, collect specimen so it will arrive in the laboratory within 48 hours of collection. Indicate date and time of venipuncture on the tube(s) and on the test request form.

Stability Requirements

Temperature

Period

Room temperature

Yellow-top (ACD-A) or (ACD-B) tube: 2 days

Lavender-top (EDTA) tube: 1 day

Refrigerated

Unstable

Frozen

Unstable

Freeze/thaw cycles

Unstable

Reference Range

Reference intervals for adults have been established by the laboratory. See table.

Reference Intervals for Lymphocyte Immunophenotyping

CD

Age

95% Confidence Interval

Percentage

Cells/mm3

Minimum

Maximum

Minimum

Maximum

Pediatric reference intervals are from Comans-Bitter WM, de Groot R, van den Beemd R, et al. Immunophenotyping of blood lymphocytes in childhood. Reference values for lymphocyte subpopulations. J Pediatrics. 1997 Mar; 130(3):388-393.

CD4+

Neonates

17

52

400

3500

1 wk to 2 m

41

68

1700

5300

2 to 5 m

33

58

1500

5000

5 to 9 m

33

58

1400

5100

9 to 15 m

31

54

1000

4600

15 to 24 m

25

50

900

5500

2 to 5 y

23

48

500

2400

5 to 10 y

27

53

300

2000

10 to 16 y

25

48

400

2100

Adults

31

59

359

1519

CD8+

Neonates

10

41

200

1900

1 wk to 2 m

9

23

400

1700

2 to 5 m

11

25

500

1600

5 to 9 m

13

26

600

2200

9 to 15 m

12

28

400

2100

15 to 24 m

11

32

400

2300

2 to 5 y

14

33

300

1600

5 to 10 y

19

34

300

1800

10 to 16 y

9

35

200

1200

Adults

12

36

109

897

T4:T8 ratio

Adults

0.92

3.72

Storage Instructions

Maintain specimen at room temperature.

Causes for Rejection

Hemolysis; specimen refrigerated or frozen; clotted specimen; contaminated specimen

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
505271 CD4/CD8 Ratio Profile 65758-5 505010 Absolute CD 4 Helper /uL 24467-3
505271 CD4/CD8 Ratio Profile 65758-5 505009 % CD 4 Pos. Lymph. % 8123-2
505271 CD4/CD8 Ratio Profile 65758-5 505579 Abs. CD 8 Suppressor /uL 14135-8
505271 CD4/CD8 Ratio Profile 65758-5 505580 % CD 8 Pos. Lymph. % 8101-8
505271 CD4/CD8 Ratio Profile 65758-5 505273 CD4/CD8 Ratio 54218-3
505271 CD4/CD8 Ratio Profile 65758-5 005025 WBC x10E3/uL 6690-2
505271 CD4/CD8 Ratio Profile 65758-5 005033 RBC x10E6/uL 789-8
505271 CD4/CD8 Ratio Profile 65758-5 005041 Hemoglobin g/dL 718-7
505271 CD4/CD8 Ratio Profile 65758-5 005058 Hematocrit % 4544-3
505271 CD4/CD8 Ratio Profile 65758-5 015065 MCV fL 787-2
505271 CD4/CD8 Ratio Profile 65758-5 015073 MCH pg 785-6
505271 CD4/CD8 Ratio Profile 65758-5 015081 MCHC g/dL 786-4
505271 CD4/CD8 Ratio Profile 65758-5 105007 RDW % 788-0
505271 CD4/CD8 Ratio Profile 65758-5 015172 Platelets x10E3/uL 777-3
505271 CD4/CD8 Ratio Profile 65758-5 015107 Neutrophils % 770-8
505271 CD4/CD8 Ratio Profile 65758-5 015123 Lymphs % 736-9
505271 CD4/CD8 Ratio Profile 65758-5 015131 Monocytes % 5905-5
505271 CD4/CD8 Ratio Profile 65758-5 015149 Eos % 713-8
505271 CD4/CD8 Ratio Profile 65758-5 015156 Basos % 706-2
505271 CD4/CD8 Ratio Profile 65758-5 115398 Immature Cells N/A
505271 CD4/CD8 Ratio Profile 65758-5 015909 Neutrophils (Absolute) x10E3/uL 751-8
505271 CD4/CD8 Ratio Profile 65758-5 015917 Lymphs (Absolute) x10E3/uL 731-0
505271 CD4/CD8 Ratio Profile 65758-5 015925 Monocytes(Absolute) x10E3/uL 742-7
505271 CD4/CD8 Ratio Profile 65758-5 015933 Eos (Absolute) x10E3/uL 711-2
505271 CD4/CD8 Ratio Profile 65758-5 015941 Baso (Absolute) x10E3/uL 704-7
505271 CD4/CD8 Ratio Profile 65758-5 015108 Immature Granulocytes % 71695-1
505271 CD4/CD8 Ratio Profile 65758-5 015911 Immature Grans (Abs) x10E3/uL 53115-2
505271 CD4/CD8 Ratio Profile 65758-5 015945 NRBC % 58413-6
505271 CD4/CD8 Ratio Profile 65758-5 015180 Hematology Comments: 18314-5
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code505010
Result Code NameAbsolute CD 4 Helper
UofM/uL
Result LOINC24467-3
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code505009
Result Code Name% CD 4 Pos. Lymph.
UofM%
Result LOINC8123-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code505579
Result Code NameAbs. CD 8 Suppressor
UofM/uL
Result LOINC14135-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code505580
Result Code Name% CD 8 Pos. Lymph.
UofM%
Result LOINC8101-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code505273
Result Code NameCD4/CD8 Ratio
UofM
Result LOINC54218-3
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code005025
Result Code NameWBC
UofMx10E3/uL
Result LOINC6690-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code005033
Result Code NameRBC
UofMx10E6/uL
Result LOINC789-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code005041
Result Code NameHemoglobin
UofMg/dL
Result LOINC718-7
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code005058
Result Code NameHematocrit
UofM%
Result LOINC4544-3
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015065
Result Code NameMCV
UofMfL
Result LOINC787-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015073
Result Code NameMCH
UofMpg
Result LOINC785-6
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015081
Result Code NameMCHC
UofMg/dL
Result LOINC786-4
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code105007
Result Code NameRDW
UofM%
Result LOINC788-0
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015172
Result Code NamePlatelets
UofMx10E3/uL
Result LOINC777-3
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015107
Result Code NameNeutrophils
UofM%
Result LOINC770-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015123
Result Code NameLymphs
UofM%
Result LOINC736-9
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015131
Result Code NameMonocytes
UofM%
Result LOINC5905-5
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015149
Result Code NameEos
UofM%
Result LOINC713-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015156
Result Code NameBasos
UofM%
Result LOINC706-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code115398
Result Code NameImmature Cells
UofM
Result LOINCN/A
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015909
Result Code NameNeutrophils (Absolute)
UofMx10E3/uL
Result LOINC751-8
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015917
Result Code NameLymphs (Absolute)
UofMx10E3/uL
Result LOINC731-0
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015925
Result Code NameMonocytes(Absolute)
UofMx10E3/uL
Result LOINC742-7
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015933
Result Code NameEos (Absolute)
UofMx10E3/uL
Result LOINC711-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015941
Result Code NameBaso (Absolute)
UofMx10E3/uL
Result LOINC704-7
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015108
Result Code NameImmature Granulocytes
UofM%
Result LOINC71695-1
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015911
Result Code NameImmature Grans (Abs)
UofMx10E3/uL
Result LOINC53115-2
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015945
Result Code NameNRBC
UofM%
Result LOINC58413-6
Order Code505271
Order Code NameCD4/CD8 Ratio Profile
Order Loinc65758-5
Result Code015180
Result Code NameHematology Comments:
UofM
Result LOINC18314-5
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115400 Bands % 35332-6
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115400
Result NameBands
UofM%
Result LOINC35332-6
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115401 Metamyelocytes % 28541-1
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115401
Result NameMetamyelocytes
UofM%
Result LOINC28541-1
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115403 Myelocytes % 26498-6
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115403
Result NameMyelocytes
UofM%
Result LOINC26498-6
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115404 Promyelocytes % 26498-6
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115404
Result NamePromyelocytes
UofM%
Result LOINC26498-6
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115405 Blasts/blast like cells % 26498-6
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115405
Result NameBlasts/blast like cells
UofM%
Result LOINC26498-6
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115406 Megakaryocytes % 19252-6
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115406
Result NameMegakaryocytes
UofM%
Result LOINC19252-6
Reflex Table for Immature Cells
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 115399 Immature Cells 115265 Other, Lineage Uncertain % 55433-7
Reflex 1
Order Code115399
Order NameImmature Cells
Result Code115265
Result NameOther, Lineage Uncertain
UofM%
Result LOINC55433-7