Diagnostic Tests for Persistent cough
Diagnostic Test list for Persistent cough:
The list of diagnostic tests
mentioned in various sources as
used in the diagnosis of Persistent cough
- Physical examination
- Inspect sputum (if present) for color and consistency
- Examine lymph nodes looking for enlarged cervical or Axillary lymph nodes which may indicate lung cancer
- Examine for Horner's syndrome - e.g. dilated pupil and drooping of the upper eyelid which may indicate lung cancer.
- Examine for possible causes of postnasal drip - e.g. sinusitis, ear infection, nasal polyps.
- Examine lungs noting breath sounds and their intensity and also the presence of added sounds
- Examine cardiovascular system for evidence of left ventricular failure
- Examine or enlarged liver and spleen which may suggest a systemic disease involving the lungs - e.g. polyarteritis nodosa, sarcoidosis.
- Blood tests
- Full blood count (for evidence of infection, anemia or cell changes with asthma)
- ESR may be elevated with any bacterial chest infection, bronchiectasis, tuberculosis, lung abscess or lung cancer)
- Sputum microscopy and culture
- Sputum culture for acid fast bacilli to rule out tuberculosis if suspected
- Lung function tests - can help distinguish between obstructive lung disease (e.g. asthma, emphysema and bronchitis) and restrictive lung disease (e.g. pulmonary fibrosis).
- Radiological investigations
- Chest X-Ray can show many lung problems and show signs of left ventricular heart failure
- Sinus X-Ray or CT scan to pick up sinusitis which may case post-nasal drip and chronic cough
- CT scan or MRI scan of chest - more sensitive then Chest X-Ray, used to further characterize abnormalities found on Chest X-Ray.
- Barium swallow can detect gastro-esophageal reflux, esophageal diverticulum
- Echocardiogram may be required to diagnose left ventricular failure
- Fiberoptic Bronchoscopy with or without lung biopsy - may detect lung cancer, bronchiectasis, foreign body, chronic fibrotic lung disease.
- Esophageal pH monitoring - may be required to diagnose gastro-esophageal reflux.
- Tuberculin skin test - may diagnose tuberculosis, but misleading if previous BCG vaccination.
Home Diagnostic Testing
These home medical tests may be relevant to Persistent cough causes:
- Lung & Respiratory Health Tests:
- Cold & Flu: Home Testing:
Conditions listing medical symptoms: Persistent cough:
The following list of conditions
have 'Persistent cough' or similar
listed as a symptom in our database.
This computer-generated list may be inaccurate or incomplete.
Always seek prompt professional medical advice about the cause
of any symptom.
Select from the following alphabetical view of conditions which
include a symptom of Persistent cough or choose View All.
Conditions listing medical complications: Persistent cough:
The following list of medical conditions have 'Persistent cough'
or similar listed as a medical complication in our database.
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