Understanding Balance Assessment for Student Nurses
Learn how to recognise changes in balance and stability, compare them with the patient's normal function and understand when sudden unsteadiness may signal neurological deterioration.
What do we mean by balance?
Balance allows a person to maintain a stable position while sitting, standing and moving. A change in balance can affect safety, mobility and independence.
Can the patient remain stable?
Observe whether the patient can maintain their normal position without unexpected leaning or loss of stability.
Can they move safely?
New difficulty standing, transferring or walking may be an important functional change.
What is normal for them?
A patient's usual mobility and use of walking aids are essential context when interpreting a change.
What might a balance problem look like?
Unexpected instability
The patient may suddenly need support when they previously stood independently.
New unsteady gait
Walking may become hesitant, irregular or noticeably less stable.
Leaning or drifting
The patient may repeatedly lean or move towards one side.
Loss of normal ability
A previously independent patient may suddenly struggle when moving between bed, chair or standing.
Dizziness or vertigo
The patient may report dizziness, spinning or a sensation of instability.
Falls or near-falls
A new fall or near-fall may be the first obvious sign that the patient's balance has changed.
Start with safety and baseline
Balance assessment should be performed according to local practice and within your level of competence. Never ask an unstable patient to perform a manoeuvre that places them at unnecessary risk.
Establish normal function
Ask how the patient normally mobilises and whether they use a stick, frame or other support.
Observe before mobilising
Look at sitting position, posture and ability to move safely before asking the patient to stand.
Compare with baseline
Determine whether today's stability or mobility is different from earlier observations.
Stop if unsafe
If significant instability is identified, protect the patient and seek appropriate assistance rather than continuing the assessment.
New imbalance may be neurological
Balance problems have many possible causes. The concern increases when sudden instability appears alongside other neurological changes.
Are movements accurate?
New poor coordination and balance disturbance may occur together.
Is there new weakness?
Unilateral weakness may contribute to sudden instability.
Has feeling changed?
New numbness or altered sensation may affect safe movement.
Is speech different?
Slurred speech or language disturbance with imbalance increases concern about an acute neurological event.
Any visual disturbance?
New visual symptoms can contribute to balance problems and may be part of a wider neurological presentation.
Is alertness normal?
Reduced consciousness or new confusion should significantly increase concern.
Acute imbalance combined with speech, vision, strength, sensation or coordination changes requires urgent assessment.
When balance changes need urgent escalation
- Sudden severe unsteadiness in a previously stable patient.
- New inability to stand or walk normally.
- Balance disturbance with new one-sided weakness.
- Balance disturbance with slurred speech or aphasia.
- New imbalance with visual disturbance.
- New imbalance with sensory loss or numbness.
- Balance deterioration following a head injury.
- New instability with reduced consciousness or rapid deterioration.
Balance changes are not always neurological
Several clinical problems can make a patient newly unstable. Assessment should consider the wider context rather than assuming a single cause.
Postural symptoms
Blood pressure changes and reduced perfusion may cause dizziness or instability.
Drug effects
Sedating or blood-pressure-lowering medicines can contribute to instability.
Systemic deterioration
Infection, dehydration or other acute illness can reduce mobility and balance.
Movement may be limited
Pain or musculoskeletal injury can make a patient appear unstable.
Visual impairment
Poor vision can significantly affect safe mobility.
Vertigo
Inner-ear or vestibular problems can produce intense imbalance and spinning sensations.
Place new balance problems within ABCDE
Airway
Confirm airway patency and respond immediately to any compromise.
Breathing
Assess respiratory rate, oxygen saturation, respiratory pattern and work of breathing.
Circulation
Assess pulse, blood pressure and perfusion within the overall clinical picture.
Disability
Assess consciousness, pupils, strength, sensation, speech, coordination and blood glucose according to local practice.
Exposure
Look for injury, illness or other causes of acute functional change while maintaining dignity.
Escalate
Communicate significant new instability and follow the relevant local emergency pathway.
Recognising sudden balance deterioration
Example
A patient has been independently walking to the bathroom throughout the morning.
When they next stand, they suddenly lean heavily towards the right and cannot walk without substantial support.
You also notice that their speech sounds slightly slurred and their right hand movements appear poorly coordinated.
You recognise the pattern: sudden severe imbalance + speech change + coordination abnormality.
You prevent the patient from mobilising unsafely, perform a structured assessment, establish when they were last at their normal baseline and escalate immediately according to the local emergency pathway.
Describe the functional change clearly
Example escalation
“I'm concerned about Mrs Evans. She normally walks independently and was doing so earlier today. She has suddenly become severely unsteady, is leaning to the right and cannot mobilise safely. Her speech also sounds newly slurred.”
This communicates the baseline, sudden functional deterioration and associated neurological change.
Balance assessment errors to avoid
- Mobilising an obviously unstable patient simply to “test” them.
- Failing to establish their normal mobility baseline.
- Assuming every balance problem is caused by age.
- Calling sudden severe imbalance “just dizziness”.
- Ignoring associated speech, vision or coordination changes.
- Focusing only on falls risk without considering acute illness.
- Failing to document exactly what changed functionally.
- Waiting for a fall before escalating significant deterioration.
Observe → protect → connect → escalate
Notice functional change
Look at posture, standing, walking and whether the patient differs from their normal baseline.
Keep the patient safe
Prevent falls while linking imbalance with neurological and wider clinical findings.
Describe what changed
Report the patient's previous mobility, the new problem and any associated neurological abnormalities.
Connect functional change with neurological assessment
Balance becomes more meaningful when considered alongside coordination, strength, sensation, speech, vision, consciousness and the patient's normal mobility.
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