INFLAMMATION
Inflammation: A Detailed Overview
Definition
Inflammation is the body’s protective response to injury, infection, or harmful stimuli. It involves vascular, cellular, and chemical processes aimed at eliminating the cause of cell injury, removing damaged tissue, and initiating tissue repair.
- Acute inflammation: Short-term, immediate response.
- Chronic inflammation: Long-term, persistent response that may contribute to diseases.
Clinical Manifestations
The classic signs of inflammation, described by Celsus and later Virchow, are:
- Redness (Rubor) – Due to increased blood flow.
- Heat (Calor) – Local hyperemia from vasodilation.
- Swelling (Tumor) – Fluid accumulation from increased vascular permeability.
- Pain (Dolor) – Pressure on nerves from swelling and chemical mediators like prostaglandins.
- Loss of function (Functio laesa) – May occur due to tissue damage or pain limiting movement.
Other systemic signs may include fever, fatigue, and malaise.
Causes
Inflammation can be triggered by:
- Infectious agents: Bacteria, viruses, fungi, parasites
- Physical injury: Trauma, burns, radiation
- Chemical injury: Toxins, poisons, drugs
- Immune reactions: Autoimmune diseases, allergies
- Chronic irritants: Smoking, obesity, pollution
Diagnostic Evaluation
Healthcare providers use both clinical assessment and lab tests:
- History and physical exam: Local signs of inflammation, patient complaints.
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Laboratory tests:
- Complete blood count (CBC) – elevated WBC count
- C-reactive protein (CRP) – marker of systemic inflammation
- Erythrocyte sedimentation rate (ESR) – nonspecific inflammation marker
- Imaging studies: Ultrasound, X-ray, or MRI may reveal tissue edema or damage.
- Special tests: Culture of fluids or tissues to identify infectious causes
Interventions
Medical interventions:
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Pharmacologic:
- Anti-inflammatory drugs (NSAIDs, corticosteroids)
- Antibiotics if infection is present
- Surgical: Drainage of abscess or debridement if tissue necrosis occurs
- Lifestyle adjustments: Diet, exercise, stress reduction
Nursing Management
Assessment:
- Monitor vital signs, especially temperature
- Observe affected areas for redness, swelling, or warmth
- Assess pain intensity using standardized scales
Planning:
- Minimize tissue injury
- Reduce inflammation and pain
- Prevent infection and complications
Implementation:
- Administer prescribed medications
- Apply cold or warm compresses as indicated
- Elevate affected limbs to reduce swelling
- Educate patients about anti-inflammatory diet and lifestyle
- Encourage rest and gradual activity to prevent further injury
Evaluation:
- Decreased pain, redness, swelling
- Improved mobility and function
- Stable vital signs
- No signs of secondary infection
