Oyl
0
Leptin, Serum
$60.00
A blood test that measures leptin levels to evaluate metabolic health and appetite regulation.
 
SKU
146712
CPT
83520
Methodology
Enzyme immunoassay (EIA)
Turnaround Time
4 - 5 days
Leptin is a hormone produced primarily by adipose tissue that plays a crucial role in regulating energy balance, appetite, and metabolism. This test measures leptin levels in the blood to evaluate metabolic health and nutritional status. Leptin acts as a satiety signal, communicating to the brain about the body's energy stores and helping regulate food intake and energy expenditure. Elevated leptin levels are typically found in obese individuals, indicating leptin resistance where the body becomes less responsive to leptin's appetite-suppressing effects. Low leptin levels can indicate malnutrition, eating disorders, or rare genetic conditions. The test is particularly valuable for evaluating patients with unexplained weight changes, monitoring metabolic disorders, and assessing nutritional status. Leptin measurements help distinguish between different causes of obesity and guide treatment decisions for metabolic and nutritional disorders.
Reference Range

See tables.2

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

0.2−2.0

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

0.4−3.1

25

5.2−30.6

1.0−10.5

0.4−3.6

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

Order Code
146712
Order Code Name
Leptin, Serum
Order Loinc
21365-2
Result Code
146713
Result Code Name
Leptin, Serum
Uofm
ng/mL
Result Loinc
21365-2