Call
+918447748545

Published on: May 03, 2024
2 minute read
By: SecondMedic Expert

Liver Function Tests In Hepatitis And Liver Disease

Book Liver Function Test(LFT)

Liver illnesses such as cirrhosis, fatty liver disease, liver cancer, and hepatitis (viral hepatitis) are all diagnosed and tracked with the use of liver function tests, or LFTs. These tests measure particular proteins, chemicals, and enzymes in the blood to offer important insights into liver health. To effectively manage the disease and provide patient care, it is crucial to comprehend the significance of liver function tests in these circumstances.

Understanding Liver Function Tests (LFTs)

A class of blood tests known as liver function tests evaluates the liver's capacity to carry out essential tasks and looks for indications of liver damage or dysfunction. These tests usually involve measuring liver-produced proteins, bilirubin levels, and enzymes.

1. Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST):

When liver cells are injured, two enzymes called ALT and AST are discharged into the bloodstream. Increased ALT and AST levels signify inflammation or damage to the liver. These enzymes are frequently increased in viral hepatitis (such hepatitis B and C) as a result of the immune system's reaction to the infection.

2. Bilirubin:

The yellow pigment known as bilirubin is created when red blood cells break down. Increased bilirubin levels may be a sign of cirrhosis or obstructive jaundice, which are disorders that impede liver function or bile flow obstruction.

3. Albumin and Total Protein:

Total protein and albumin levels are indicators of the liver's ability to synthesize proteins. Low levels could be a sign of malnutrition, chronic liver disease, or problems with the liver's ability to produce protein.

4. Prothrombin Time (PT):

PT gauges how well blood clots. Prolonged PT, which is frequently observed in advanced liver diseases such as cirrhosis, implies reduced hepatic synthesis of clotting components.

Tests of Liver Function in Hepatitis

One of the main causes of liver inflammation and damage is viral hepatitis. Tests for liver function are crucial for identifying and tracking viral hepatitis:

Hepatitis B: Prolonged liver inflammation brought on by the hepatitis B virus (HBV) is indicated by elevated ALT and AST levels. Tracking these values aids in determining the severity of the illness and informs therapy choices.

Hepatitis C: Likewise, high levels of the liver enzymes AST and ALT indicate the presence of the hepatitis C virus (HCV). Monitoring LFTs facilitates evaluation of liver damage progression and response to treatment.

Examinations of Liver Function in Fatty Liver Disease

Fat buildup in the liver is a hallmark of both non-alcoholic fatty liver disease (NAFLD) and its progressive version, non-alcoholic steatohepatitis (NASH). In NAFLD/NASH, liver test may reveal:

- Mild increase in ALT and AST due to inflammation in the liver.

- Abnormalities in the levels of bilirubin throughout the later stages of the illness.

- In severe cases, impaired production of proteins such as albumin.

Tests of Liver Function in Patients with Cirrhosis and Liver Cancer

Cirrhosis: Because of the compromised liver function, LFTs in cirrhosis frequently show low albumin levels, extended PT, and increased bilirubin. For the purpose of controlling problems and monitoring liver function over time, routine LFT monitoring is essential.

Liver Cancer (Hepatocellular Carcinoma): Imaging investigations, tumor markers, and liver function tests(LFT) help detect and track this disease. A liver tumor's advancement or liver function impairment brought on by cancer infiltration may be indicated by abnormal LFTs.

Conclusion

Liver function tests are indispensable tools in the diagnosis, staging, and monitoring of various liver diseases, including hepatitis, fatty liver disease, cirrhosis, and liver cancer. These tests provide valuable insights into liver health by measuring specific enzymes, proteins, and substances in the blood. Understanding the significance of liver function tests in these conditions is essential for effective disease management and patient care.

Book Liver Function Test(LFT)

Read FAQs

A. Liver function tests are blood tests that evaluate the liver's performance and detect signs of liver damage or dysfunction. They measure enzymes, proteins, and substances produced by the liver, providing valuable insights into liver health. LFTs are essential for diagnosing and monitoring liver diseases such as hepatitis, cirrhosis, and fatty liver disease.

A. Abnormal LFT results can indicate various liver conditions. Elevated levels of enzymes like ALT and AST may suggest liver inflammation or injury, often seen in viral hepatitis. Abnormal bilirubin levels may indicate impaired liver function or bile flow obstruction. Low albumin levels could signify chronic liver disease or malnutrition. Prolonged PT may indicate impaired clotting function, common in advanced liver diseases like cirrhosis.

A. Liver function tests play a crucial role in diagnosing and monitoring hepatitis (such as hepatitis B and C) and liver diseases like cirrhosis and fatty liver disease. Elevated ALT and AST levels in viral hepatitis indicate ongoing liver inflammation, while abnormal LFT patterns in fatty liver disease reveal fat accumulation and impaired liver function. Regular monitoring of LFTs helps assess disease activity and guide treatment decisions.

Read Blog

Fever for 3 Days ? Should You Visit a Doctor or Wait

A fever lasting three days raises valid concern for patients and caregivers alike. While many febrile episodes resolve independently, a persistent fever lasting 72 hours warrants careful evaluation. Understanding when to seek medical attention and when watchful waiting is appropriate can prevent unnecessary complications and guide timely clinical intervention.

Should You Visit a Doctor If Fever Lasts for 3 Days?

A fever persisting for three consecutive days in adults generally requires medical evaluation, particularly when body temperature exceeds 103°F (39.4°C) or when additional symptoms such as breathlessness, severe headache, or rash are present. In children under five years, medical consultation is recommended after 48 to 72 hours of unresolved fever regardless of severity. Physicians advise against self-managing a three-day fever without professional assessment in high-risk populations.

Clinically, a three-day fever threshold is significant because most viral infections producing fever resolve within 48 to 72 hours. Fever persisting beyond this window may indicate a bacterial infection, an underlying inflammatory condition, or a secondary complication requiring targeted diagnostic workup. In the Indian clinical context, endemic infections such as dengue, typhoid, and malaria must be considered as potential etiologies when fever extends beyond 72 hours.

Common Causes of Persistent Fever in Adults and Children

Persistent fever lasting three or more days may originate from a range of infectious and non-infectious etiologies. Identifying the underlying cause is essential for selecting appropriate treatment.

Infectious Causes:

Viral infections: Influenza, dengue fever, chikungunya, COVID-19
Bacterial infections: Typhoid fever (enteric fever), urinary tract infections, pneumonia, tuberculosis
Parasitic infections: Malaria (particularly relevant in tropical regions of India)

Non-Infectious Causes:

Autoimmune or inflammatory conditions
Drug-induced fever (fever as an adverse drug reaction)
Post-vaccination fever (typically resolves within 48 hours)

Condition	Typical Fever Duration	Key Associated Symptoms
Viral fever	3 to 5 days	Body ache, fatigue, runny nose
Dengue fever	5 to 7 days	Severe joint pain, rash, low platelet count
Typhoid fever	7 to 14 days	Abdominal pain, diarrhea or constipation, rose spots
Malaria	Cyclical pattern	Chills, sweating, rigors
Urinary tract infection	Variable	Burning urination, flank pain

What to Do When Fever Does Not Go Down After 3 Days

When fever does not subside after 72 hours, the immediate recommended course of action is to consult a general physician or internist for clinical assessment. Antipyretic medications such as paracetamol (acetaminophen) can manage symptom discomfort but do not treat the underlying cause. Blood investigations including a complete blood count (CBC), malarial antigen test, and dengue NS1 antigen test are standard first-line diagnostics in India.

Beyond seeking medical consultation, patients should maintain adequate hydration, rest, and nutritional intake. Oral rehydration is particularly important in a tropical climate where fever accelerates fluid loss. Specialists caution against self-prescribing antibiotics without laboratory confirmation, as indiscriminate antibiotic use contributes to antimicrobial resistance, a significant public health concern in India. Clinical data supports early laboratory testing as the most effective step when fever persists beyond three days.

Warning Signs That Require Immediate Medical Attention

Certain symptoms accompanying a three-day fever indicate medical emergencies requiring immediate hospital evaluation rather than home management.

Patients or caregivers should seek emergency care if any of the following are present:

Fever above 104°F (40°C) that does not respond to antipyretics
Severe headache with neck stiffness (possible meningitis)
Difficulty breathing or chest pain
Skin rash appearing alongside fever (possible dengue or viral exanthem)
Altered consciousness, confusion, or seizures
Persistent vomiting preventing oral hydration
Fever in infants below three months of age
Fever in immunocompromised patients (those on chemotherapy, steroids, or with HIV)
Signs of dehydration: sunken eyes, dry mouth, reduced urine output

In children, febrile seizures can occur at temperatures above 102°F (38.9°C). While often self-limiting, any seizure associated with fever requires urgent pediatric evaluation.

Can a 3-Day Fever Resolve Without Medical Treatment?

In otherwise healthy adults, a mild to moderate fever (below 102°F) lasting three days caused by a self-limiting viral infection can resolve without specific medical treatment. The immune system typically clears common viral pathogens within three to five days. Supportive care including rest, hydration, and antipyretics is sufficient in low-risk cases.

However, resolution without medical treatment is not advisable for children under five, adults above 65, pregnant women, or individuals with chronic conditions such as diabetes or heart disease. Clinical evidence consistently indicates that delayed diagnosis in these populations increases the risk of serious complications. In regions with high prevalence of vector-borne diseases such as dengue and malaria, assuming a self-limiting viral cause without testing carries significant risk. Medical consultation remains the safest and most clinically sound approach when fever persists beyond three days.

Medical Disclaimer

This content is intended for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. Readers experiencing persistent fever or related symptoms should consult a qualified healthcare professional for evaluation and management.

If you are facing similar health concerns, consult expert doctors online through the SecondMedic app or visit your nearest SecondMedic Health Hub for in-person care

Request A Callback

+91

By using this website/app, I confirm that I am at least 18 years old and consent to the processing of my personal data in accordance with the Terms of Service, Privacy Policy, and Declaration.