Nonproductive Cough

What Causes Dry Cough?

Dry cough can have various causes, ranging in severity from 'needs attention' to 'critical'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

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  • let The Analyst™ find what's wrong
  • check your overall health status
  • identify any nutritional deficiencies

Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose dry cough, 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 "dry cough" as a symptom.  Here are three possibilities:
  • Leukemia
  • Valley Fever (Coccidioidomycosis)
  • Pneumonia

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:
being lean or underweight
chest pain when breathing
frequent painful inguinal nodes
moderate unexplained weight loss
blue/bluish fingernails
occasional 'chills'
elevated eosinophil count
African ethnicity
occasional sore throats
moderate right hypochondriac pain
night sweats
diffuse bone pain
... and more than 20 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of dry cough:
Cause Probability Status
Valley Fever (Coccidioidomycosis) 93% Confirm
Pneumonia 26% Unlikely
Leukemia 2% 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.

In the Respiratory Symptoms section of the questionnaire, The Analyst™ will ask the following question about nonproductive cough:
Do you have a cough that does not produce mucus (a 'dry cough')?
Possible responses:
→ Don't know
→ No
→ Yes, for less than a month
→ Yes, for over a month but less than a year
→ Yes, for more than a year
Based on your response to this question, which may indicate absence of dry cough, recent dry cough or chronic dry cough, The Analyst™ will consider possibilities such as:
Pneumonia

Viral pneumonia often produces a dry cough at the beginning.  The cough usually becomes worse and produces a small amount of mucus.  Mycoplasma pneumonia is associated with a cough that tends to come in violent attacks, but produces only sparse whitish mucus.

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