For anterior lung auscultation points these are the steps:
1. apex of the lung or right clavicle
2. 2nd intercostal space for accessing both right and upper lobes
3. 4th intercostal space for accessing both right and left middle lobes
4. 6th intercostal space for accessing both right and left lower lobes
For posterior lung auscultation points:
1. right above the scapulae
2. go to the vertebral prominence
3. proceed between shoulder blades and spine
