You are unable to distinguish S1 from S2, so you proceed by placing the diaphragm of your stethoscope over the mitral area while
a. palpating a radial pulse. c. the patient holds his breath.
b. palpating a carotid pulse. d. the patient takes a deep breath.
B
To identify S1, place the diaphragm of the stethoscope over the mitral area. If you are unable to distinguish S1 from S2, palpate the carotid artery with the hand closest to the head while auscultating the mitral landmark. You will hear S1 with each carotid pulse beat. The patient holding his breath or taking a deep breath is not going to help you differentiate S1 from S2.
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