Systemic infection

Definition

A systemic infection is an infection that has spread throughout the body, affecting multiple organs and tissues. It often results from pathogens entering the bloodstream and disseminating from the initial site of infection.

5 Must Know Facts For Your Next Test

1. Systemic infections can be caused by bacteria, viruses, fungi, or parasites.
2. Common symptoms include fever, chills, fatigue, and signs specific to affected organs.
3. Sepsis is a severe form of systemic infection that can lead to organ failure and death.
4. Diagnosis often involves blood cultures and imaging studies to identify the pathogen and extent of spread.
5. Treatment typically includes broad-spectrum antibiotics or antivirals followed by targeted therapy based on culture results.

Review Questions

Related terms

Sepsis:

A life-threatening condition caused by the body's response to a systemic infection leading to tissue damage and organ failure.

Bacteremia:

The presence of bacteria in the bloodstream which can lead to systemic infections.

Opportunistic Infections:

Infections caused by pathogens that take advantage of weakened immune systems or breached barriers in the host.