What is the normal range of platelet count in a healthy adult? (Expert)
#1: 150,000 to 450,000 platelets per microliter of blood
#2: 100,000 to 300,000 platelets per microliter of blood
#3: 200,000 to 600,000 platelets per microliter of blood
#4: 50,000 to 150,000 platelets per microliter of blood