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Test ID FLEP Leptin


Specimen Required


Specimen Type: Serum

Container/Tube: Red or SST

Specimen Volume: 1 mL

Collection Instructions: Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Spin down and send 1 mL of serum ambient in a plastic vial.

Note: EDTA (lavender-top) plasma is an acceptable alternate.


Method Name

Enzyme Immunoassay (EIA)

Reporting Name

Leptin

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL
NOTE: Minimum volume does not allow for repeat analysis.

Specimen Stability Information

Specimen Type Temperature Time
Serum Ambient (preferred) 14 days
  Refrigerated  30 days
  Frozen  21 days

Reference Values

Units: ng/mL

 

Female Ranges <20 by Body Mass Index (BMI)

BMI

Tanner Stage 1-2

Tanner Stage 3-4

Tanner Stage 5

11

0.3-1.5

0.4-1.3

0.7-2.7

12

0.4-1.9

0.5-1.6

0.8-3.2

13

0.5-2.4

0.7-2.1

0.9-3.7

14

0.6-3.1

0.8-2.6

1.0-4.3

15

0.8-3.9

1.1-3.3

1.2-5.0

16

1.1-5.0

1.3-4.2

1.4-5.8

17

1.4-6.5

1.7-5.3

1.6-6.7

18

1.7-8.3

2.1-6.7

1.9-7.8

19

2.2-10.7

2.7-8.5

2.2-9.1

20

2.9-13.7

3.4-10.7

2.6-10.5

21

3.7-17.6

4.3-13.6

3.0-12.3

22

4.7-22.6

5.5-17.2

3.5-14.2

23

6.0-29.0

6.9-21.8

4.0-16.6

24

7.8-37.2

8.8-27.6

4.7-19.3

25

10.0-47.8

11.1-34.9

5.5-22.4

26

12.8-61.4

14.0-44.2

6.4-26.0

27

16.4-78.8

17.7-56.0

7.4-30.3

28

21.5-101.0

22.5-70.9

8.6-35.2

29

27.0-130.0

28.4-89.7

10.0-40.9

30

 

36.0-114.0

11.6-47.6

31

 

45.6-144.0

13.5-55.3

32

 

57.7-144.0

15.7-64.4

33

 

 

18.3-74.9

34

 

 

21.2-87.0

35

 

 

24.7-101.0

36

 

 

28.7-118.0

37

 

 

33.4-137.0

 

 

Male Ranges <20 by Body Mass Index (BMI)

BMI

Tanner Stage 1-2

Tanner Stage 3-4

Tanner Stage 5

11

0.1-0.7

0.1-0.6

0.1-0.5

12

0.2-0.9

0.1-0.7

0.1-0.5

13

0.2-1.2

0.1-0.9

0.1-0.6

14

0.3-1.6

0.1-1.1

0.1-0.7

15

0.4-2.0

0.1-1.3

0.1-0.8

16

0.5-2.7

0.2-1.6

0.1-1.0

17

0.6-3.5

0.2-1.6

0.1-1.1

18

0.8-4.6

0.2-2.5

0.2-1.3

19

1.0-6.0

0.3-3.0

0.2-1.5

20

1.4-7.9

0.3-3.7

0.2-1.7

21

1.8-10.4

0.4-4.6

0.2-2.0

22

2.3-13.6

0.5-5.6

0.3-2.3

23

3.1-17.8

0.6-6.9

0.3-2.7

24

4.0-23.3

0.8-8.5

0.4-3.6

25

5.2-30.6

1.0-10.5

0.4-3.1

26

6.9-40.1

1.2-12.9

0.5-4.2

27

9.0-52.5

1.5-15.8

0.6-4.8

28

11.8-68.9

1.8-19.4

0.6-5.6

29

15.5-90.3

2.2-23.9

0.7-6.5

30

20.3-118.0

2.7-29.4

0.9-7.5

31

 

3.3-36.2

1.0-8.7

32

 

4.1-44.5

1.2-10.0

33

 

5.0-54.7

1.3-11.6

34

 

6.2-67.2

1.5-13.4

35

 

7.6-82.6

1.8-15.6

36

 

9.4-101.0

2.1-18.0

37

 

11.5-124.0

2.4-20.8

38

 

 

2.8-24.1

39

 

 

3.2-27.9

40

 

 

3.7-32.3

 

 

Female Ranges >19 by Body Mass Index (BMI)

BMI

Range

BMI

Range

11

0.7-3.6

24

4.4-24.2

12

0.8-4.2

25

5.1-28.0

13

0.9-4.8

26

5.9-32.4

14

1.0-5.6

27

6.8-37.5

15

1.2-6.5

28

7.9-43.5

16

1.4-7.5

29

9.1-50.4

17

1.6-8.7

30

10.6-58.3

18

1.8-10.0

31

12.2-67.5

19

2.1-11.6

32

14.1-78.2

20

2.4-13.4

33

16.4-90.5

21

2.8-15.6

34

19.0-105.0

22

3.3-18.0

35

22.0-121.0

23

3.8-20.9

36

25.4-141.0

 

 

Male Ranges >19 by Body Mass Index (BMI)

BMI

Range

BMI

Range

11

0.1-0.4

25

1.1-9.6

12

0.1-0.6

26

1.3-12.0

13

0.1-0.7

27

1.6-14.9

14

0.1-0.9

28

2.0-18.6

15

0.1-1.1

29

2.5-23.2

16

0.2-1.3

30

3.2-28.9

17

0.2-1.7

31

3.9-36.0

18

0.2-2.1

32

4.9-44.9

19

0.3-2.6

33

6.1-55.8

20

0.4-3.2

34

7.6-69.6

21

0.4-4.0

35

9.5-86.7

22

0.5-5.0

36

11.8-108.0

23

0.8-6.2

37

14.8-135.0

24

0.9-7.7

 

 

Day(s) Performed

Tuesday, Thursday

Report Available

4 to 15 days

Performing Laboratory

Esoterix Endocrinology

Test Classification

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

CPT Code Information

83520

NY State Approved

Yes