Understanding Ataxia for Student Nurses
Learn what ataxia means, how it may affect movement, coordination and balance, and why sudden new ataxia can be an important neurological warning sign.
What is ataxia?
Ataxia is a term used to describe a lack of normal coordination or control of movement. It can affect the limbs, walking, balance, speech and other activities requiring precise movement.
Movement becomes less accurate
The patient may overshoot, undershoot or struggle to control movement smoothly.
Stability may change
Standing and walking may become unexpectedly unsteady.
Everyday tasks can become difficult
Reaching, eating, dressing or handling objects may become less controlled.
What might ataxia look like?
Unsteady gait
The patient may walk with unexpected instability or require more support than usual.
Missing the target
Movements may be inaccurate when the patient reaches for an object.
Reduced precision
Activities requiring controlled hand movement may suddenly become difficult.
Speech may sound altered
Some neurological presentations involving ataxia can also affect the coordination of speech.
Eye movement abnormalities
Abnormal eye movements or visual symptoms may accompany other coordination problems.
Sudden onset matters
New ataxia developing rapidly is more concerning than a stable, long-standing coordination difficulty.
Start with observation and function
Student nurses should assess coordination using techniques taught within their university and placement area and within their level of competence.
Establish baseline
Determine how the patient normally walks, moves and performs everyday activities.
Observe movement
Look at smoothness, accuracy and control during normal activity.
Compare both sides
Where appropriate, identify new differences between corresponding movements.
Assess the wider picture
Connect coordination with strength, sensation, speech, vision, eye movements, balance and consciousness.
Poor coordination is not the same as muscle weakness
A patient may have useful muscle strength but still be unable to control movement accurately. Conversely, weakness itself can make coordination tasks difficult.
Reduced force
The patient may struggle to generate or maintain muscle power.
Reduced control
Strength may be present, but movement is poorly coordinated or inaccurate.
Consider both
Strength and coordination findings should be assessed together rather than interpreted separately.
Ataxia may form part of a wider neurological pattern
Has speech changed?
New slurred or unusual speech alongside ataxia increases concern.
Any visual disturbance?
Double vision, visual field changes or abnormal eye movements may occur alongside neurological coordination problems.
Any altered feeling?
New numbness or sensory loss can contribute to or accompany abnormal movement.
Any focal weakness?
New unilateral weakness adds to concern about an acute neurological presentation.
Any severe new symptoms?
Sudden neurological change with severe headache or vomiting should be escalated urgently.
Is alertness changing?
Ataxia with reduced consciousness or rapid deterioration is particularly concerning.
Sudden ataxia associated with speech change, visual symptoms, weakness, sensory loss or altered consciousness requires urgent assessment.
When new ataxia needs urgent escalation
- Sudden new severe loss of coordination.
- New inability to walk or stand safely.
- Ataxia with new dysarthria or other speech change.
- Ataxia with double vision or other acute visual disturbance.
- Ataxia with new facial or limb weakness.
- Ataxia with new numbness or sensory loss.
- Ataxia following a head injury.
- Ataxia associated with severe headache, vomiting or reduced consciousness.
Ataxia has many possible causes
Ataxia describes a clinical finding rather than a single disease. Identifying the underlying cause requires appropriate clinical assessment.
Acute neurological disease
Sudden coordination changes may occur during acute neurological events and require prompt escalation.
Movement may be affected
Medicines, alcohol or other substances may contribute to impaired balance or coordination.
Baseline may already be abnormal
Some patients have chronic neurological conditions affecting coordination, making previous function especially important.
Ataxia can create an immediate falls risk
Prevent avoidable injury
Do not allow a newly unstable patient to mobilise independently while their condition is being assessed.
Follow local procedures
Use appropriate falls prevention, mobility and escalation measures within your clinical setting.
Ask why function changed
Sudden loss of normal mobility should trigger clinical assessment, not simply a change in mobility assistance.
Place ataxia within a structured assessment
Airway
Assess airway patency and respond immediately if compromise is identified.
Breathing
Assess respiratory rate, oxygen saturation, pattern and work of breathing.
Circulation
Assess pulse, blood pressure and perfusion within the patient's wider clinical picture.
Disability
Assess consciousness, pupils, eye movements, speech, strength, sensation, coordination and blood glucose according to local practice.
Exposure
Look for injury, illness or other relevant clinical findings while maintaining patient dignity.
Escalate
Communicate significant new neurological changes promptly and follow the relevant local emergency pathway.
Recognising sudden ataxia
Example
A patient has been independently walking around the ward throughout the morning.
They suddenly become markedly unsteady and need support to remain standing.
When reaching for their water, their hand repeatedly misses the glass. They also report new double vision and their speech sounds slurred.
You recognise the pattern: sudden ataxia + visual change + dysarthria.
You keep the patient safe, perform a structured assessment, establish when they were last known to be at their normal neurological baseline and escalate immediately according to the local emergency pathway.
Describe the change in function
Example escalation
βI'm concerned about Mr Carter. He was walking independently earlier today but has suddenly become severely unsteady. His right hand is repeatedly missing objects when he reaches for them, he reports new double vision and his speech sounds newly slurred.β
This communicates the baseline, sudden functional change, coordination abnormality and associated neurological findings.
Ataxia assessment errors to avoid
- Using βataxiaβ as a diagnosis rather than describing a clinical finding.
- Failing to establish the patient's normal mobility and coordination.
- Confusing weakness with poor coordination.
- Ignoring visual or eye movement changes.
- Calling sudden instability simply a falls problem.
- Asking an obviously unsafe patient to mobilise unnecessarily.
- Documenting βataxicβ without describing what was observed.
- Waiting for obvious paralysis before escalating acute neurological deterioration.
Observe β protect β connect β escalate
Notice loss of control
Look for inaccurate movement, unsteadiness and change from normal function.
Keep the patient safe
Reduce falls risk and connect coordination findings with speech, vision, strength, sensation and consciousness.
Act on sudden change
Describe the patient's baseline, what changed and the associated neurological findings.
Build the neurological pattern
Ataxia becomes more meaningful when considered alongside balance, strength, sensation, speech, vision, eye movements, pupils and the patient's normal neurological baseline.
Explore Clinical Confidence β