Which heart sound is normal except when it's heard in pregnancy or in children?
Understand the Problem
The question requires identifying a heart sound that is considered normal in adults but abnormal in pregnant women and children. It tests the understanding of normal and abnormal heart sounds in different physiological conditions.
Answer
The third heart sound (S3).
The third heart sound (S3) is considered normal in children, pregnant women, and well-trained athletes, but it can indicate underlying heart conditions in other adults.
Answer for screen readers
The third heart sound (S3) is considered normal in children, pregnant women, and well-trained athletes, but it can indicate underlying heart conditions in other adults.
More Information
The S3 sound happens during early diastole as the ventricle fills rapidly. Physiological S3 sounds are more common in younger individuals because of their more elastic heart tissues.
Tips
It is a common mistake to assume all heart sounds are pathological. Always consider the patient's age and physiological condition.
Sources
- Third Heart Sound (S3) - healio.com
- S3 heart sound: Definition, treatment, and more - MedicalNewsToday - medicalnewstoday.com
- Pediatric Cardiology - utmb.edu
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