A butcher stabbed accidently his groin. He bled so much that the towel was soaked in blood and BP 80/50mmHg, pulse 130bpm. What % of circulatory blood did he lose?

1. The key is C. 30-40%

Classification:

Class 1 up to 15% of blood volume lost: pulse <100; systolic BP normal; pulse pressure normal;

Respiratory rate 14-20; urine output greater than 30 ml/hour. Class 2 15%-30% blood volume lost: pulse 100-120; systolic blood pressure normal; pulse pressure decreased; respiratory rate 20-30; urine output 20-30 ml/hour.

Class 3 30%-40% blood volume lost: pulse 120-140; systolic BP decreased; pulse pressure decreased, respiratory rate 30-40; urine output 5-15 ml/hr

Class 4, blood loss of greater than 40%: pulse rate >140; systolic BP decreased; pulse pressure

decreased’ respiratory rate >35; urine output negligible.