What causes high Bilirubin indirect and low ALT SGPT?

High Bilirubin indirect and low ALT SGPT can be caused by many reasons.

If your Bilirubin indirect is in between 0.1 mg/dL and 1 mg/dL and your ALT SGPT is in between 21 U/L and 72 U/L then you need not worry as these are the normal ranges for Bilirubin indirect and ALT SGPT respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease Bilirubin levels include:

• Gallstones present in the bile ducts
• Hepatitis A, hepatitis B, hepatitis C
• Scarring of the bile ducts
• Lack of oxygen (hypoxia)
• Liver disease

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Normal range of Bilirubin indirect : 0.1 - 1 mg/dL

Ideal values of Bilirubin indirect depending on age :

Age	Ideal Bilirubin indirect value
<5 years	0.1087
5-10 years	0.11816
10-15 years	0.12844
15-20 years	0.13961
20-25 years	0.15176
25-30 years	0.16496
30-35 years	0.17931
35-40 years	0.19491
40-45 years	0.21187
45-50 years	0.2303
50-55 years	0.25034
55-60 years	0.27212
60-70 years	0.29579
70-80 years	0.32152
80-90 years	0.34949
90-100 years	0.3799
>100 years	0.41295

*Ideal values are calculated based on our database of patient records

Normal range of ALT SGPT : 21 - 72 U/L

Ideal values of ALT SGPT depending on age :

Age	Ideal ALT SGPT value
<5 years	22.827
5-10 years	24.813
10-15 years	26.972
15-20 years	29.319
20-25 years	31.87
25-30 years	34.643
30-35 years	37.657
35-40 years	40.933
40-45 years	44.494
45-50 years	48.365
50-55 years	52.573
55-60 years	57.147
60-70 years	62.119
70-80 years	67.523
80-90 years	67.012
90-100 years	66.505
>100 years	66.002

High Bilirubin indirect and low ALT SGPT can be caused by a lot of reasons. If you take Bilirubin indirect and ALT SGPT blood tests and the results are higher than 1 mg/dL for Bilirubin indirect and lower than 21 U/L for ALT SGPT, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the Bilirubin indirect and ALT SGPT Tests Are Done :

If your doctor wants Bilirubin indirect and ALT SGPT tests on you, you may need to go through these tests. During the Bilirubin indirect and ALT SGPT blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Bilirubin indirect and ALT SGPT Test reports by your pathologist.

Medical References

• Cleveland Clinic – Bilirubin Test: Understanding High vs. Low Levels & Causes
• Mayo Clinic – Bilirubin test
• MedlinePlus – Bilirubin Blood Test
• WebMD – Bilirubin Test: High vs. Low Levels, Direct vs. Indirect
• NIH – Physiology, Bilirubin