NCLEX Shock & Sepsis: Types, Early Signs & First Hour

bolt The 60-second version

check_circleFour types: hypovolemic (volume loss), cardiogenic (pump failure), distributive (septic, anaphylactic, neurogenic), and obstructive (tamponade, tension pneumothorax, massive PE).
check_circleEarly shock cues: rising heart rate, rising respiratory rate, restlessness or anxiety, falling urine output, narrowing pulse pressure. Hypotension is often a late sign.
check_circleA common target is mean arterial pressure (MAP) of at least 65 mm Hg and urine output of at least 0.5 mL/kg/h.
check_circleSepsis first hour (Surviving Sepsis Campaign): measure lactate, draw blood cultures before antibiotics, give broad-spectrum antibiotics, give 30 mL/kg crystalloid for hypotension or lactate ≥ 4 mmol/L, and start vasopressors (norepinephrine first-line) if MAP stays below 65.
check_circleAnaphylaxis: IM epinephrine into the anterolateral thigh is the first drug; then airway, oxygen, fluids, and adjuncts.
check_circleNeurogenic shock (spinal cord injury) causes hypotension with bradycardia and warm, dry skin.

target What you'll be able to do · aligned to NCLEX-RN Test Plan · Physiological Adaptation

PHYS ADAPTClassify shock by type and identify the priority treatment for each.
PHYS ADAPTRecognize early signs of shock before hypotension.
PHYS ADAPTCarry out first-hour sepsis care in the correct order.
PHARMGive epinephrine first for anaphylaxis.

Types of shock

Each type has a different cause, so treatment differs.

Types of shock. Cardiogenic shock with lung congestion may worsen with large fluid boluses.

Type	Skin	Key clue	Priority treatment
Hypovolemic	Cool, pale, clammy	Blood or fluid loss; flat neck veins	Stop bleeding; fluids or blood
Cardiogenic	Cool, clammy	Crackles, JVD, recent MI	Support the pump; cautious fluids; inotropes as ordered
Septic	Often warm early, cool later	Infection, fever or hypothermia, high lactate	Antibiotics, fluids, vasopressors
Anaphylactic	Flushed, hives	Exposure; wheeze, stridor, swelling	IM epinephrine
Neurogenic	Warm, dry	Spinal cord injury; bradycardia	Fluids, vasopressors, atropine for bradycardia as ordered
Obstructive	Cool	Tracheal shift, muffled heart sounds, sudden dyspnea	Relieve the obstruction

Passive leg raising may be used to assess fluid responsiveness; the Trendelenburg position is no longer recommended for shock.

Early recognition

The body compensates first, so blood pressure can look normal while perfusion is failing.

Shock stages. Restlessness and a rising heart rate are often the earliest signs.

MAP ≈ (systolic + 2 × diastolic) ÷ 3; a MAP below 65 mm Hg suggests poor organ perfusion.
Urine output below about 0.5 mL/kg/h is an early warning of low renal perfusion.
A lactate above 2 mmol/L suggests tissue hypoperfusion; 4 mmol/L or higher is a trigger for aggressive resuscitation.

Sepsis: the first hour

Sepsis is a life-threatening organ dysfunction caused by a dysregulated response to infection.

Sepsis first-hour bundle, per Surviving Sepsis Campaign guidance. Do not delay antibiotics to obtain cultures if cultures cannot be drawn promptly.

Nursing role	Detail
Screen	New confusion, fever or low temperature, tachypnea, tachycardia, low BP in a client with possible infection
Escalate	Call the rapid response or sepsis team per protocol
Monitor	MAP, urine output, mental status, lactate trend, signs of fluid overload
Vasopressors	Norepinephrine first-line; preferably via central line, watch for extravasation if peripheral

Older adults may not have a fever; new confusion may be the first sign.

Anaphylaxis

Anaphylaxis is a rapid, severe allergic reaction that can close the airway.

Anaphylaxis. Epinephrine is the first-line drug; antihistamines do not treat airway swelling or shock.

NGN-style case

Early cues before hypotension.

functions Clinical judgment case — the quiet decline

A client 2 days after abdominal surgery is newly restless. HR has risen from 88 to 118, RR from 16 to 26, temperature 101.8°F (38.8°C), BP 102/68 (baseline 128/80), urine output 20 mL/h for 2 hours. What should the nurse do?

Recognize cues: tachycardia, tachypnea, fever, restlessness, low urine output, falling BP.
Analyze: likely sepsis with early shock (compensated).
Notify the provider or activate the sepsis or rapid response team now.
Anticipate lactate, blood cultures, broad-spectrum antibiotics, and IV fluids; monitor MAP and urine output.

Answer. Escalate immediately for suspected sepsis and prepare for the first-hour bundle.

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Heart Failure

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