English: Heart sounds of Elizabeth C., 16 years old female, diagnosed with mitral valve prolapse (MVP) and mitral regurgitation. Auscultating her heart, a systolic murmur and click is heard. She has no symptoms. Recorded at rest, supine position with the stethoscope over the tricuspid valve. Recorded while holding her breath, lying down with the stethoscope over the tricuspid valve. The systolic click is heard closer to the first heart sound while holding her breath. Her heart is in normal sinus rhythm and the rate remains steady at a steady 66 beats per minute.