Hemorrhage

Table of Contents

Introduction

Hemorrhage is defined asย excess loss of bloodย due to rupture of blood vessels.

Types and causes of Hemorrhage

it occurs due to various reasons. based on the cause, hemorrhage is classified into five categories:
  • Accidental hemorrhage
  • Capillary hemorrhage
  • Internal hemorrhage
  • Postpartum hemorrhage
  • Hemorrhage due to premature detachment of placenta

Compensatory Effects of Hemorrhage

Many effects are observed during and after hemorrhage. Effects are different in theย acute hemorrhage and chronic hemorrhage.

Acute Hemorrhage

Acute hemorrhage is sudden loss of a large quantity of blood. It occurs in condition like accidents. The decreased blood volume in acute hemorrhage causes hypovolemic shock.

Chronic Hemorrhage

Chronic hemorrhage is the loss of blood either by internal or external bleeding over a long period.

Compensatory Effects

After hemorrhage, a series of compensatory reactions develop in the body to cope with the blood loss.

    • Immediate compensatory effects
    • Delayed compensatory effects

Immediate compensatory effects

      • On the Cardiovascular system – there is decreased venous return, ventricular filling, and cardiac output.
      • On skin – There is a decrease in the cutaneous blood flow
      • On tissue fluid – There is a decrease the capillary pressure.
      • On kidneys – Their decrease the glomerular filtration rate (GFR) very much.
      • On Respiration – There is a decrease in venous return, cardiac output, and velocity of blood flow.

Delayed compensatory effects

These reactions are :

      • Restoration of plasma volume
      • Restoration of plasma protein
      • Restoration of red blood cell count and hemoglobin contents