Liver Function Tests: Difference between revisions

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== Components of Liver Function Tests ==
== Components of Liver Function Tests ==
{| class="wikitable"
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!'''Alanine Transaminase;''' Normal value: 0-45 IU/L
!'''Alanine Transaminase (ALT);''' Normal value: 0-45 IU/L
'''Aspartate Transaminase;''' Normal value: 0-35 IU/L<ref>Lala V, Goyal A, Bansal P, Minter D. [https://www.ncbi.nlm.nih.gov/books/NBK482489/ Liver function tests]. StatPearls. 2020 Apr 28.</ref>
'''Aspartate Transaminase (AST);''' Normal value: 0-35 IU/L<ref name=":0">Lala V, Goyal A, Bansal P, Minter D. [https://www.ncbi.nlm.nih.gov/books/NBK482489/ Liver function tests]. StatPearls. 2020 Apr 28.</ref>
|-
|-
|'''Causes of raised transaminases:'''
|'''Causes of raised transaminases:'''
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* Endocrine disease: hypothyroidism, Addison's disease.
* Endocrine disease: hypothyroidism, Addison's disease.
* Diseases of striate muscle.
* Diseases of striate muscle.
* Glycogen storage diseases.<ref>Limdi JK, Hyde GM. [https://pmj.bmj.com/content/79/932/307.full Evaluation of abnormal liver function tests]. Postgraduate medical journal. 2003 Jun 1;79(932):307-12.</ref>
* Glycogen storage diseases.<ref name=":1">Limdi JK, Hyde GM. [https://pmj.bmj.com/content/79/932/307.full Evaluation of abnormal liver function tests]. Postgraduate medical journal. 2003 Jun 1;79(932):307-12.</ref>
|}
|}
 
{| class="wikitable"
== Sub Heading 3 ==
!'''Alkaline phosphatase (ALP):''' 30–120 IU/l<ref name=":0" />
|-
|'''Causes of raised ALP'''
* Physiological
** Women in the third trimester of pregnancy.
** Adolescents.
** Benign, familial (due to increased intestinal ALP).
* Pathological
** Bile duct obstruction.
** Primary biliary cirrhosis.
** Primary sclerosing cholangitis.
** Drug induced cholestasis—for example, anabolic steroids.
** Adult bile ductopenia.
** Metastatic liver disease.
** Bone disease.<ref name=":1" />
|} 


== Resources  ==
== Resources  ==

Revision as of 11:18, 29 November 2020

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Introduction[edit | edit source]

Groups of blood tests performed to know the condition of a liver of a patient are known as liver function tests (LFT) or liver panel or hepatic function panel or hepatic panel.[1]

Components of Liver Function Tests[edit | edit source]

Alanine Transaminase (ALT); Normal value: 0-45 IU/L

Aspartate Transaminase (AST); Normal value: 0-35 IU/L[2]

Causes of raised transaminases:
  • Alcohol.
  • Medications: non-steroidal anti-inflammatory drugs, antibiotics, HMG Co-A-reductase inhibitors, antiepileptic drugs, antituberculous drugs, herbal medications, illicit drug use.
  • Non-alcoholic steatohepatosis.
  • Chronic hepatitis B and C.
  • Autoimmune diseases.
  • Hemochromatosis.
  • Wilson's disease.
  • Congestive cardiac failure and ischaemic hepatitis.
  • ɑ1-Antitrypsin deficiency.
  • Coeliac disease.
  • Endocrine disease: hypothyroidism, Addison's disease.
  • Diseases of striate muscle.
  • Glycogen storage diseases.[3]
Alkaline phosphatase (ALP): 30–120 IU/l[2]
Causes of raised ALP
  • Physiological
    • Women in the third trimester of pregnancy.
    • Adolescents.
    • Benign, familial (due to increased intestinal ALP).
  • Pathological
    • Bile duct obstruction.
    • Primary biliary cirrhosis.
    • Primary sclerosing cholangitis.
    • Drug induced cholestasis—for example, anabolic steroids.
    • Adult bile ductopenia.
    • Metastatic liver disease.
    • Bone disease.[3]

Resources[edit | edit source]

  • bulleted list
  • x

or

  1. numbered list
  2. x

References[edit | edit source]

  1. Teshome G, Ambachew S, Fasil A, Abebe M. Prevalence of liver function test abnormality and associated factors in type 2 diabetes mellitus: a comparative cross-sectional study. Ejifcc. 2019 Oct;30(3):303.
  2. 2.0 2.1 Lala V, Goyal A, Bansal P, Minter D. Liver function tests. StatPearls. 2020 Apr 28.
  3. 3.0 3.1 Limdi JK, Hyde GM. Evaluation of abnormal liver function tests. Postgraduate medical journal. 2003 Jun 1;79(932):307-12.