<prompt> A 0.5 litre blood loss in 30 minutes will lead toIncrease in HR, decrease in BPSlight increase in HR, normal BPDecrease in HR and BPProminent increase in HR  <response>: B i.e. Slight increase in H.R, normal BPBlood loss of upto 20 of blood volume are normally tolerated by redistribution of blood flow, mediated by vasospasmQ.500m1 blood accounts for about 10 of total blood volume 5 litresBlood loss1515-30Q30-4040BPNo changeNo changeReducedMarkedly reducedHea rateSlight Increase100-120 slight120, weak120, threadyRespiratory rateNormalIncreased2020-30 