Q. 94 Which ONE of the following is often a life-threatening systemic inflammatory response?
(A) Tuberculosis
(B) Lupus erythematosus
(C) Septic shock
(D) Hypertension
Septic shock stands out as the condition often recognized as a life-threatening systemic inflammatory response among the given options. This medical emergency arises from a dysregulated immune reaction to infection, leading to widespread organ dysfunction and high mortality rates.
Correct Answer
(C) Septic shock
Septic shock represents the severe endpoint of sepsis, where infection triggers an overwhelming systemic inflammatory response syndrome (SIRS). This causes profound hypotension, tissue hypoperfusion, and multiorgan failure despite fluid resuscitation, with mortality exceeding 40% in many cases.
Option Breakdown
| Option | Description | Why Not Life-Threatening Systemic Inflammatory Response? |
|---|---|---|
| (A) Tuberculosis | Chronic bacterial infection primarily affecting lungs, caused by Mycobacterium tuberculosis. Can disseminate but rarely presents as acute systemic shock. | Typically localized or granulomatous; septic shock from TB is exceptional, not “often” life-threatening in this manner. |
| (B) Lupus erythematosus | Autoimmune disease (SLE) with autoantibodies attacking tissues, causing multiorgan inflammation like joints, skin, and kidneys. | Chronic flares involve immune dysregulation but not the acute, overwhelming SIRS of septic shock; managed long-term, not emergently life-threatening. |
| (C) Septic shock | Dysregulated host response to infection leading to organ dysfunction and shock. | Matches exactly: hallmark life-threatening SIRS with endothelial damage, cytokine storm, and rapid progression to death if untreated. |
| (D) Hypertension | Elevated blood pressure (persistently >140/90 mmHg), a cardiovascular risk factor. | No inflammatory basis; mechanical stress on vessels, not systemic inflammation or shock. |
Clinical Insights
Early recognition of septic shock uses criteria like SIRS (tachycardia, tachypnea, fever/hypothermia, leukocytosis) plus infection evidence and organ failure signs (e.g., lactate >2 mmol/L). Aggressive interventions—fluids, vasopressors, antibiotics within 1 hour—improve survival from near-fatal levels. This distinguishes it sharply from the other options’ slower, non-shock profiles.
