👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Physiological Adaptation🔖 Free to read, print, and share
Also known as: shock · circulatory collapse · hypoperfusion · low blood pressure crisis
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Use this quick-reference guide to spot, treat, and prevent Shock Recognition on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Types
Hypovolemic = fluid/blood loss
Cardiogenic, distributive, obstructive
🩺 Signs
↑HR early, ↓BP late
Cool clammy, ↓UO < 30mL/hr
Altered LOC, ↑lactate
✅ Do
O2, large-bore IV fluids
Trendelenburg/legs up, warm
Find + fix the cause
📌 Avoid
Fluids in cardiogenic shock
Delay → irreversible organ damage
📚 Shock Recognition — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Shock is a state of inadequate tissue perfusion and oxygen delivery that, if untreated, leads to cellular death and multi-organ failure. The main types are hypovolemic, cardiogenic, distributive (septic, anaphylactic, neurogenic), and obstructive. Early recognition during the compensatory stage is critical because hypotension is a late, ominous sign.
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Key points
Understand these first
Early compensated shock shows tachycardia, restlessness or anxiety, cool clammy skin, and narrowing pulse pressure, often with a normal blood pressure.
Hypotension is a late sign that marks decompensation as compensatory mechanisms fail.
Hypovolemic shock comes from fluid/blood loss; cardiogenic from pump failure; distributive from massive vasodilation; obstructive from blocked flow such as tension pneumothorax or tamponade.
Warm flushed skin early suggests distributive (septic) shock, whereas cool clammy skin suggests hypovolemic or cardiogenic shock.
Decreasing urine output and rising lactate are sensitive markers of worsening hypoperfusion.
Treatment is type-specific: fluids/blood for hypovolemic, inotropes for cardiogenic, fluids plus vasopressors and antibiotics for septic.
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Nursing priorities
What to do, in order
Recognize early signs (tachycardia, restlessness, cool skin, low urine output) and act before hypotension develops.
Support airway and breathing, give high-flow oxygen, and establish large-bore IV access.
Give isotonic fluid resuscitation, except cautiously in cardiogenic shock.
ScvO2 and base deficit reflect oxygen delivery; urine output at least 30 mL/hr
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Patient teaching
What patients must know
Seek emergency care for symptoms of infection, heavy bleeding, or severe allergic reactions before collapse occurs.
Patients at risk should report dizziness, confusion, or decreased urination promptly.
Complete prescribed antibiotics fully to prevent progression to septic shock.
❓ Shock Recognition: NCLEX FAQs
What are the priority nursing interventions for Shock Recognition?
Recognize early signs (tachycardia, restlessness, cool skin, low urine output) and act before hypotension develops. Support airway and breathing, give high-flow oxygen, and establish large-bore IV access. Give isotonic fluid resuscitation, except cautiously in cardiogenic shock. Monitor blood pressure, heart rate, mental status, lactate, and hourly urine output.
What are the warning signs of Shock Recognition a nurse must report?
Falling blood pressure with altered mental status signals decompensated shock - escalate immediately. Restlessness and confusion are early signs of cerebral hypoperfusion, not just anxiety. Urine output below 30 mL/hr indicates inadequate organ perfusion - report it. Avoid aggressive fluid boluses in cardiogenic shock, which can worsen pulmonary edema.
What do I need to know about Shock Recognition for the NCLEX?
Early compensated shock shows tachycardia, restlessness or anxiety, cool clammy skin, and narrowing pulse pressure, often with a normal blood pressure. Hypotension is a late sign that marks decompensation as compensatory mechanisms fail. Hypovolemic shock comes from fluid/blood loss; cardiogenic from pump failure; distributive from massive vasodilation; obstructive from blocked flow such as tension pneumothorax or tamponade. Warm flushed skin early suggests distributive (septic) shock, whereas cool clammy skin suggests hypovolemic or cardiogenic shock.
What patient teaching is important for Shock Recognition?
Seek emergency care for symptoms of infection, heavy bleeding, or severe allergic reactions before collapse occurs. Patients at risk should report dizziness, confusion, or decreased urination promptly. Complete prescribed antibiotics fully to prevent progression to septic shock.
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Quick Tip
Early compensated shock shows tachycardia, restlessness or anxiety, cool clammy skin, and narrowing pulse pressure, often with a normal blood pressure.