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Questions and Answers
Which sound has a duration of about 0.15 s and a frequency of 25–45 Hz?
Which sound has a duration of about 0.15 s and a frequency of 25–45 Hz?
- Second sound
- First sound (correct)
- Third sound
- Fourth sound
What causes the second sound to be loud and sharp?
What causes the second sound to be loud and sharp?
- Low heart rate
- Brisk systole
- Elevated diastolic pressure in the aorta or pulmonary artery (correct)
- Physiologic splitting of the second sound
What is the interval between aortic and pulmonary valve closure during inspiration called?
What is the interval between aortic and pulmonary valve closure during inspiration called?
- Third sound
- Reduplication of the second sound (correct)
- Fourth sound
- Physiologic splitting of the second sound
In what condition does splitting of the second sound frequently occur?
In what condition does splitting of the second sound frequently occur?
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When does the third sound occur?
When does the third sound occur?
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