A 31-Year-Old Man Is Evaluated for a Murmur

question 474

Multiple Choice

A 31-year-old man is evaluated for a murmur.  He has no other symptoms and his past medical history is unremarkable.  He jogs 3 times per week and rides a bicycle on the weekend.  His blood pressure is 122/70 mm Hg on the right arm and 125/75 mm Hg in both ankles.  On physical examination, a harsh, 4/6 holosystolic murmur is heard at the 4th left intercostal space close to the sternal border accompanied by a thrill.  The rest of the physical examination is within normal limits.  Which of the following is the most likely diagnosis?

• A)Atrial septal defect
• B)Mitral valve prolapse
• C)Tetralogy of Fallot
• D)Tricuspid valve stenosis
• E)Ventricular septal defect

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Definitions:

IgA

Immunoglobulin A, a type of antibody that plays a crucial role in the immune function of mucous membranes.

IgG

A type of antibody that plays a critical role in the immune response by identifying and neutralizing pathogens like bacteria and viruses.

IgM

Immunoglobulin M, a type of antibody that is produced by the immune system as a first line of defense against infections.

Personal Protective Equipment

Gear worn to minimize exposure to hazards that cause serious workplace injuries and illnesses.