Chest Percussion is a conventional method to clear airway and mobilize the thick mucus from the chest wall. Percussion can be applied by both manually and mechanically, but the mechanical percussion is more useful. Percussion should be given in comfortable and gravity assisted position. Therapist Position the hands in cupped shape and the patient in the supine position. Percussions are performed rhythmically striking patient's chest, the sound produced should be hollow. Percussion duration should be 5 minutes on each lobe. The rate of percussion must be 100-480/ minutes. Percussion will be applied for 20 minutes per session, 3 sessions per week for the periods of 4 weeks

The hand position will be so that hands should be placed on the posterolateral side of the hemi thorax while the second hand will be at anterior chest extending from the lower ribs to above clavicle. In squeezing phase, in full expiration position, 3-4 chest wall compressions are applied to increase the expiratory flow rate to remove air trapped in lungs and mobilize secretions. This phase lasts only for 4-6 seconds. Chest wall compressions should be gentle and in comfortable position In release phase of lung squeezing technique at the end of expiration the compressed thoracic segment is quickly released. It increases the Trans pulmonary pressure and it opens the obstructed airways by plugging the mucus from small airways. creates the negative traction force on small airways which mobilize the thick and sticky mucus. The duration of each session will be of 20 minutes, 3 sessions per week for the periods of 4 weeks.

Chest Percussion is a conventional method to clear airway and mobilize the thick mucus from the chest wall. Percussion can be applied by both manually and mechanically, but the mechanical percussion is more useful

An invasive technique for keeping an eye on someone's blood oxygen saturation is pulse oximetry. The accuracy of peripheral oxygen saturation measurements is usually 2% of the arterial oxygen saturation level obtained from arterial blood gas analysis, which is a more precise measurement. It may decrease and remain low owing to specific cardiovascular problems, or it may peak and climb after a run or other physical activity. Nonetheless, conventional research indicates that the usual range for pulse rate on an oximeter in healthy persons is between 60 and 100 beats per minute

The most used pulmonary function test is spirometry. It assesses the capacity of the lungs to breathe in and out, especially the volume and/or velocity of air that can be expelled. When evaluating breathing patterns to detect diseases including asthma, pulmonary fibrosis, cystic fibrosis, and COPD, spirometry is useful. An FEV1/FVC ratio larger than 0.70 with both FEV1 and FVC over 80% of the expected value are considered normal spirometry data. TLC exceeding 80% of the predicted value is typical in the event that lung volumes are measured. Diffusion capacity that is more than 75% of the expected value is likewise regarded as typical

A three-item questionnaire used to evaluate the patient's cough, sputum, and dyspnea forms the basis of the BCSS. Using a Likert scale, with 0 denoting improved symptoms and a 4 denoting deteriorating symptoms, individuals can register their symptoms on the BCSS. Patients are asked to assess the severity of each of the three symptoms on a 5-point scale as part of the BCSS, a patient-reported outcome measure. Higher scores denote more severe symptoms. A total score is obtained by adding the item scores