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Shock (Circulatory Collapse)
A life-threatening state where the body cannot get enough blood and oxygen to its organs. It has several causes and always needs emergency care.
Causes & risk factors
- Severe bleeding or fluid loss (hypovolemic)
- Serious infection (septic shock)
- Heart pump failure (cardiogenic)
- Severe allergic reaction (anaphylactic)
- Major injury or burns
Common symptoms
- Cold, clammy, pale skin
- Fast, weak pulse
- Dizziness or confusion
- Rapid breathing
- Fainting or collapse
- Nausea
Tests & diagnosis
- Blood count
- Electrolytes
- Lactate level
- ECG
- Kidney function
Treatment & management
- Call your local emergency number immediately
- Lay the person down and keep them warm
- Intravenous fluids and, when needed, blood
- Medicines to support blood pressure
- Treating the underlying cause (bleeding, infection, heart problem)
When to see a doctor urgently
- Call your local emergency number now for collapse with cold clammy skin and a weak pulse
- Seek immediate care after major bleeding, injury or severe infection
- Do not give food or drink to someone who is collapsing
Not a diagnosis. MedDroid gives general educational information about shock (circulatory collapse). It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Is shock the same as feeling shocked emotionally?
No — medical shock is a dangerous drop in blood flow to organs and is a physical emergency.
What can I do while waiting for help?
Keep the person lying down and warm, control any obvious bleeding, and do not give food or drink.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.