What Causes Abnormal T3 Free Levels?

Abnormal T3 free levels can have various causes, just like most other symptoms. 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 abnormal T3 free 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 "abnormal T3 free levels" as a symptom. Here are two possibilities:

Hyperthyroidism
Hypothyroidism

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:

occasional 'chills'

unsound sleep

macrocytic red cells

having watery stools

poor concentration during cycle

bulging eyes

being a lethargic person

low HDL cholesterol level

poor cold weather tolerance

moderate afternoon/evening fatigue

having elevated TT4 level

history of hyperthyroidism

... 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 abnormal T3 free levels:

Cause	Probability	Status
Hyperthyroidism	92%	Confirm
Hypothyroidism	54%	Possible

* 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:

T3 (Free). Unit: pg/mL [pmol/L]

Possible responses:

→ Don't know
→ Under 1.4 [0.021] (very low)
→ 1.4 to 2.0 [0.021-0.031] (low)
→ 2.1 to 4.4 [0.032-0.068] (normal)
→ Over 4.4 [0.068] (elevated)

Based on your response to this question, which may indicate low T3 free level, normal T3 free level or high T3 free level, The Analyst™ will consider possibilities such as:

Hyperthyroidism

Hypothyroidism

... and also rule out issues such as:

Hypothyroidism

Concerned or curious about your health? Try The Analyst™