While performing auscultation on a patient with known cardiac pathology, you attempt to assess the pulmonary valve. To perform this correctly, where should you position the stethoscope?
1. In the second right intercostal space at the right sternal margin
2. In the second left intercostal space at the left sternal margin
3. In the fifth left intercostal space in line with the middle of the clavicle
4. In the fourth left intercostal space along the lower left sternal border
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