Understanding Shock: What Does a Systolic Pressure of 80 mmHg Mean?

A systolic BP of 80 mmHg indicates severe hypotension consistent with Class III–IV hemorrhagic shock (ATLS classification).

ATLS Hemorrhagic Shock Classes

Class	Blood Loss	SBP	HR	Mental Status	Urine Output
I	≤15%	Normal	<100	Normal	>30 mL/hr
II	15–30%	Normal	>100	Anxious	20–30
III	30–40%	↓ (80–100)	>120	Confused	5–15
IV	>40%	↓↓ (<80)	>140	Lethargic/coma	Negligible

Immediate Actions

1. Two large-bore IVs / IO access.
2. 1–2 L crystalloid bolus (or blood if available).
3. Type & screen/crossmatch; activate massive transfusion protocol.
4. Source control (surgery, angiography, packing).
5. Vasopressors only as bridge (norepinephrine) – not a substitute for volume.
6. Monitor: lactate, base deficit, TEG/ROTEM, urine output.

SBP 80 mmHg = decompensated shock. Requires aggressive resuscitation and definitive hemorrhage control.