Pediatrics A 10 year old boy presents with mucosal bleeding of 1 week duration. The investigation of choice that will be most useful in him is A Prothrombin time B Clotting time C Paial thromboplastin time D Platelet count 💡 Explanation A 10 year old boy presents with mucosal bleeding of 1 week duration. The investigation of choice that will be most useful in him is ✓ Correct Answer: D. Platelet count