Weakness in an older adult is a vague complaint that can hide serious illness such as sepsis, heart attack, stroke, electrolyte problems or medicine side effects. A complete, systematic assessment, from history to head-to-toe exam, is the key to finding the cause.
Key symptoms
- Generalized weakness, tiredness or feeling unwell
- Poor appetite or drinking little
- Dizziness or near fainting
- New confusion or falls
- Mild chest discomfort, shortness of breath or urinary symptoms
What you find on exam
- Full vital signs, including temperature and orthostatic changes
- Mental status compared with the baseline the family describes
- Focused neuro exam: one-sided weakness, speech, facial droop
- Heart, lungs, abdomen and skin for infection or bleeding
- Medication list, recent changes and home safety
Tests
- Glucose
- 12-lead ECG: silent heart attack, slow rhythms, high potassium
- Blood count, electrolytes, kidney function and urinalysis
- Troponin, lactate, cultures and chest X-ray as indicated
Treatment basics
- Treat what is found: fluids for dehydration, antibiotics for sepsis
- Stroke alert for focal deficits within the time window
- Review and stop harmful medicines using the Beers criteria
- Correct glucose and electrolyte problems
- Transport for evaluation and plan a safe discharge with support
Red flags
- Abnormal vital signs, fever or low blood pressure
- ECG changes or chest pain
- Sudden focal weakness or new confusion
Practice it in Making Synapses
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Related guides
Sources: NASEMSO National Model EMS Clinical Guidelines; NREMT psychomotor skill sheets (EMT and Paramedic); NCSBN 2026 NCLEX-RN Test Plan. Written by Making Synapses. Making Synapses is not affiliated with these organizations.