Shock is any condition in which the circulatory system is unable to provide adequate circulation to the vital body organs such as the brain,heart and lungs. As a result of a decrease in the blood pressure.
Shock is usually accompanied by renal failure, as a normal compensatory mechanism, because the blood flow to the kidney is decreased to keep enough blood for the vital organs.
Septic shock is a serious medical condition caused by decreased tissue perfusion and oxygen delivery as a result of infection and sepsis , though the microbe may be systemic or localized to a particular site.
It can cause multiple organ dysfunction syndrome (formerly known as multiple organ failure ) and death .
The mortality rate from septic shock is approximately 50%.
Bacteremia (also Bacteraemia ) is the presence of bacteria in the blood .
The blood is normally a sterile environment, so the detection of bacteria in the blood (most commonly with blood cultures ) is always abnormal.
Bacteria can enter the bloodstream as a severe complication of infections (like pneumonia or meningitis ), during surgery (especially when involving mucous membranes such as the gastrointestinal tract ), or due to catheters and other foreign bodies entering the arteries or veins (including intravenous drug abuse ).