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Related Concept Videos

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
Hepatic Drug Excretion: Influencing Factors01:16

Hepatic Drug Excretion: Influencing Factors

The biliary system of the liver, crucial for bile secretion and drug excretion, comprises intrahepatic bile ducts that merge to form the common hepatic duct. This duct, carrying hepatic bile, combines with the cystic duct, draining the gallbladder and forming the common bile duct, which empties into the duodenum. Bile, produced by hepatic cells lining the bile canaliculi, is composed primarily of water, bile salts, pigments, electrolytes, and lesser amounts of cholesterol and fatty acids. Bile...
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment01:08

Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment

Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):

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Related Experiment Video

Updated: May 9, 2026

Inducing Acute Liver Injury in Rats via Carbon Tetrachloride (CCl4) Exposure Through an Orogastric Tube
06:12

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Published on: April 28, 2020

[Evaluation of elevated liver values].

Marcos Oberacher1, Beat Müllhaupt

  • 1Abteilung für Gastroenterologie und Hepatologie Waidspital Zürich.

Therapeutische Umschau. Revue Therapeutique
|July 24, 2013
PubMed
Summary
This summary is machine-generated.

Monitoring serum liver enzymes is common in clinical practice for diagnosing liver conditions or unexplained illnesses. Evidence-based guidelines for investigating abnormal liver tests are limited, necessitating case study analysis.

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Last Updated: May 9, 2026

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Area of Science:

  • Clinical Biochemistry
  • Hepatology
  • Diagnostic Medicine

Context:

  • Serum liver enzyme analysis is a routine clinical laboratory examination.
  • Elevated liver values prompt investigation for liver diseases, unexplained illnesses, or as part of routine check-ups.
  • Limited controlled clinical trials exist for evidence-based work-up of abnormal liver tests.

Purpose:

  • To discuss algorithms for investigating elevated liver tests.
  • To illustrate potential causes of elevated liver enzymes through case reports.
  • To provide a practical approach to managing abnormal liver function tests.

Summary:

  • This article reviews diagnostic algorithms for abnormal liver enzyme tests.
  • It presents four case reports detailing various causes of elevated liver enzymes encountered in clinical practice.
  • The work highlights the challenges in evidence-based investigation due to a lack of clinical trials.

Impact:

  • Aims to guide clinicians in the rational investigation of abnormal liver tests.
  • Enhances understanding of differential diagnoses for elevated liver enzymes.
  • Provides practical insights for improving patient management and diagnostic strategies.