Left Arm Tightness: Distinguishing Heart Attack from Stroke Symptoms

Left arm tightness or pain is a classic cardiac symptom (angina or myocardial infarction), not a typical sign of stroke. Knowing the difference saves lives.

Cardiac Presentation (Heart Attack / Angina)

• Pressure, squeezing, or heaviness in the chest, often radiating to the left arm, jaw, neck, or back.
• Exertional (stable angina) or occurring at rest (unstable angina/MI).
• Often accompanied by diaphoresis (cold sweat), dyspnea (shortness of breath), and nausea.

Stroke Presentation (BE FAST)

• Balance: Sudden loss of balance or coordination.
• Eyes: Sudden vision changes (blurriness, double vision, loss).
• Face: Facial drooping, usually on one side.
• Arm: Weakness or numbness (typically unilateral), not tightness.
• Speech: Slurred, garbled, or inability to speak/understand.
• Time: Call 911 immediately—time is brain.

Key Distinctions

• Cardiac: Pain/tightness, often bilateral radiation, associated with exertion or stress.
• Stroke: Sudden weakness/numbness, typically one-sided, with facial droop and speech difficulty.

Action Plan

Any sudden left arm symptoms + cardiac risk factors → Call 911. Chew aspirin (if not allergic).
Stroke symptoms (BE FAST) → Call 911 immediately.
Time is tissue for both conditions. Do not drive yourself.