Hypotension
March 28th, 2020
Overview
Hypotension refers to systolic BP <100mmHg or a drop in systolic BP to <80% of the patient's baseline.
Causes of Hypotension
Hypovolaemia
- Bleeding
- Dehydration
- Third Spacing
Vasodilation
- Septic shock
- Anaphylaxis
- Neurogenic
- Blood transfusion reaction
- Adrenocortical insufficiency
Cardiogenic
- Myocardial infarction
- Tachycarrhythmia
- Bradyarrhythmia
Obstructive
- Massive pulmonary embolus
- Tension pneumothorax
- Cardiac tamponade
Other
- Drug toxicity (e.g. beta blockers, calcium channel blockers)
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