Unknown Which of these statements is FALSE about infective endocarditis in l.V. drug abusers- A Candida is a common cause. B Pulmonary valve is commonly involved. C Staphylococeus aureus is commonest organism. D Tricuspid valve is most commonly involved. 💡 Explanation Which of these statements is FALSE about infective endocarditis in l.V. drug abusers- ✓ Correct Answer: B. Pulmonary valve is commonly involved.