Physiology A 0.5 litre blood loss in 30 minutes will lead to which of the following changes? A Increase in HR, decrease in BP B Slight increase in HR, normal BP C Decrease in HR and BP D Prominent increase in HR 💡 Explanation A 0.5 litre blood loss in 30 minutes will lead to which of the following changes? ✓ Correct Answer: B. Slight increase in HR, normal BP