Sign in →

Test Code LAB3248 Leptin

Additional Codes

Leptin

Reporting Name

Leptin
Seattle Children's Hospital Note:

SCH Clinical System Name: 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.


Seattle Children's Hospital Note:

Draw 2.0 mL whole blood in a Red top.

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 Special Container
Serum Ambient (preferred) 14 days
  Refrigerated  30 days
  Frozen  21 days

Day(s) Performed

Tuesday, Thursday

Performing Laboratory

Esoterix Endocrinology

Method Name

Enzyme Immunoassay (EIA)

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

 

 

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

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FLEP Leptin 21365-2

 

Result ID Test Result Name Result LOINC Value
Z0262 Leptin 21365-2

Report Available

4 to 15 days

Reject Due To

Hemolysis Reject
Lipemia Reject