PFT- The term encompasses a wide variety of objective methods to assess lung function.
Ventilatory Lung Function Tests

Spirometry
Peak Expiratory Flow Rate
Helium Dilution technique
Body Plethysmography

Assessment of Pulmonary Gas Exchange or Diffusion

Blood gas analysis
Pulse oximetry
Measurement of diffusing capacity

Assessment of Pulmonary perfusion

Methods of measurement of pulmonary circulation
Ventilation-Perfusion by Lung Scan

Pulmonary function testing in infants and young children

Plethysmography and nasal pneumotachography
Blood gas analysis provides the …

Cough is one of the most common presenting complain in children at Out-patient. Cough may be just a benign protective phenomenon , but at times it become troublesome . Cause of Cough Should be sought for even outside the respiratory system, like ears,abdomen etc.
CHRONIC COUGH
Cough  lasting for 4 weeks or more -CHEST January 2006
1.Inflammatory disorder of airway
Asthma & Loeffler’s syndrome, Tropical …

AN APPROACH TO A CHILD WITH WHEEZE

WHEEZES OR RONCHI:
Wheeze is a dry musical sound associated with airway narrowing.
The expiration is prolonged.
WHEEZING:
Common in infants and young children because of unique age specific anatomic and physiologic properties and gender specific intrinsic lung characteristics.
By year 1- 20 % children.
By 3 years- 33% children.
By 6 year- 50% children.
< 15% children are …