Your Direct Bilirubin Level

What Causes Elevated Direct Bilirubin Levels?

Elevated direct bilirubin levels can have various causes, ranging in severity from 'worrying' to 'generally fatal'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

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Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose elevated direct bilirubin levels, we could:

  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "elevated direct bilirubin levels" as a symptom.  Here are eight of many possibilities (more below):
  • Hemochromatosis
  • Chemotherapy Side-Effects
  • Liver Cancer
  • Pancreatic Cancer
  • Drug Side-Effects
  • Hepatitis
  • Gilbert's Syndrome
  • Cirrhosis Of The Liver

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
recent chemotherapy use
moderate alcohol consumption
history of gout
having elevated melatonin levels
low sperm count
high serum iron
pancreatic cancer
frequent bizarre dreams
black/brown fingernails
coffee consumption
highly elevated lymphocyte count
low lymphocyte count
... and more than 60 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of elevated direct bilirubin levels:
Cause Probability Status
Chemotherapy Side-Effects 96% Confirm
Gilbert's Syndrome 16% Unlikely
Pancreatic Cancer 12% Unlikely
Hepatitis 5% Ruled out
Drug Side-Effects 2% Ruled out
Liver Cancer 1% Ruled out
Hemochromatosis 0% Ruled out
Cirrhosis Of The Liver 0% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

If you indicate having had recent lab tests, The Analyst™ will ask further questions including this one:
Bilirubin, direct. Unit: mg/dL [umol/L]
Possible responses:
→ Don't know
→ 0.0 to 0.3 [0-5] (normal)
→ Recently elevated
→ Chronically elevated
Based on your response to this question, which may indicate either normal direct bilirubin level or high direct bilirubin level, The Analyst™ will consider possibilities such as:
(Prescription) Drug Side-Effects

Certain medicines can damage the liver.  Examples include many antibiotics, some types of birth control pill (sex hormones), antipsychotic drugs, and many others.

Cirrhosis of the Liver

Diseases that cause liver damage can lead to increased bilirubin levels.  Cirrhosis may cause normal, moderately high or high levels of bilirubin, depending on the type of cirrhosis.

Gallbladder Disease

Certain health conditions, such as gallstones or an infected gallbladder, can block the bile ducts and lead to an accumulation of bile in the body.

Gilbert's Syndrome

One common – and harmless – cause of elevated bilirubin is Gilbert's syndrome, a deficiency in an enzyme that helps break down bilirubin.

Hemolytic Anemia

Certain conditions, such as hemolytic anemia, can cause increased destruction of red blood cells and therefore increased bilirubin production.

Pancreatic Cancer

Certain diseases, such as pancreatic cancer, can block the bile ducts and lead to an accumulation of bile in the body.

Sickle Cell Trait / Disease

Sickle cell disease causes rapid destruction of red blood cells in the blood, leading to increased bilirubin levels.

Concerned or curious about your health?  Try The Analyst™
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