Recognising Heart Failure Deterioration for Student Nurses
Learn how to recognise changes that may indicate worsening heart failure and connect breathlessness, oedema, observations and functional changes with the wider clinical picture.
What is heart failure?
Heart failure is a clinical syndrome in which the heart is unable to meet the body's needs normally without changes in cardiac pressures or function. Patients can live with chronic heart failure, but their condition may deteriorate.
Baseline matters
Some patients have long-standing breathlessness, oedema or reduced exercise tolerance. Establish what is normal for them.
Look for change
Increasing symptoms, worsening observations or declining function may indicate that the patient's condition is changing.
Connect the findings
Respiratory symptoms, circulation, fluid balance and functional changes should be considered together.
Changes that may suggest deterioration
Increasing breathlessness
The patient may become more breathless during activity or, in more significant deterioration, while resting.
Difficulty lying flat
Ask whether the patient is becoming more breathless when lying flat or needs additional pillows compared with usual.
Increasing oedema
Peripheral swelling may become more noticeable or extend further than previously documented.
Reduced exercise tolerance
Activities the patient normally manages may cause increasing breathlessness or fatigue.
Changing weight trend
Where weight is being clinically monitored, an unexpected change may provide useful information about fluid status.
Increasing tiredness
Patients may report worsening fatigue, weakness or reduced ability to complete usual activities.
Build the clinical picture systematically
Ask what has changed
Establish whether breathlessness, swelling, fatigue or exercise tolerance has changed from baseline.
Assess breathing
Observe respiratory rate, oxygen saturation, work of breathing and the patient's respiratory symptoms.
Assess circulation
Connect pulse, blood pressure, perfusion and cardiovascular symptoms with the wider picture.
Look for oedema
Identify whether peripheral swelling is present and whether it appears different from previous assessments.
Review trends
Compare observations and relevant fluid or weight information with previous documentation where available.
Escalate deterioration
Communicate meaningful changes according to local escalation procedures.
Breathing changes are particularly important
Worsening heart failure can be associated with increasing respiratory symptoms. Always assess these changes within ABCDE rather than assuming heart failure is necessarily the cause.
Is breathing becoming faster?
Compare the current respiratory rate with previous observations and the patient's wider clinical condition.
Has oxygenation changed?
Interpret oxygen saturation within the patient's prescribed target, clinical condition and local guidance.
Does breathing look harder?
Increased respiratory effort, inability to speak comfortably or visible distress increases concern.
Look for trends rather than isolated numbers
| Finding | What to look for | Why it helps |
|---|---|---|
| Peripheral oedema | New or increasing swelling compared with baseline. | May contribute to evidence of changing fluid status. |
| Weight trend | Unexpected change where regular weight monitoring is part of care. | Can provide useful information when interpreted with symptoms and examination. |
| Fluid balance | Relevant trends where fluid balance monitoring is clinically indicated. | Provides context rather than a standalone diagnosis. |
| Urine output | Significant change from the patient's usual pattern. | May contribute to recognition of wider deterioration. |
| Breathlessness | Increasing symptoms, particularly compared with baseline. | May be clinically important when occurring with other fluid-related changes. |
Assess acute deterioration systematically
Airway
Identify and respond immediately to airway compromise.
Breathing
Assess respiratory rate, oxygen saturation, work of breathing and respiratory distress.
Circulation
Assess pulse, blood pressure, peripheral perfusion and relevant cardiovascular findings.
Disability
Assess consciousness and recognise new confusion or reduced responsiveness.
Exposure
Look for oedema and other relevant findings while maintaining dignity and temperature.
Escalate
Significant deterioration should trigger prompt escalation according to local emergency procedures.
When heart failure deterioration becomes urgent
- New severe breathlessness or rapidly increasing respiratory distress.
- Falling oxygen saturation with worsening clinical condition.
- Significant chest pain or chest discomfort.
- New hypotension or evidence of worsening peripheral perfusion.
- Syncope, collapse or new altered consciousness.
- Rapidly worsening oedema accompanied by respiratory deterioration.
- Significant deterioration across repeated physiological observations.
- Any patient with heart failure who appears acutely unwell.
A patient is becoming increasingly breathless
Example
A patient with known heart failure tells you that walking to the bathroom has become much harder today because of breathlessness.
They also report that they slept propped up on more pillows than usual. Their lower-leg oedema appears worse than previously documented and their respiratory rate has increased.
You recognise a pattern: increasing breathlessness + reduced exercise tolerance + difficulty lying flat + worsening oedema + observation change.
You complete an appropriate ABCDE assessment and escalate the change promptly for further clinical assessment.
Communicate the trend, not just the diagnosis
Example escalation
βI'm concerned that Mr Green, who has known heart failure, appears to be deteriorating. His breathlessness has increased today, he needed more pillows overnight, his leg swelling appears worse and his respiratory rate has increased from his previous observations.β
This clearly communicates baseline + change + symptoms + objective findings and explains why further assessment is needed.
Heart failure assessment errors to avoid
- Assuming chronic breathlessness means there is no new deterioration.
- Looking at oedema without assessing respiratory symptoms.
- Failing to compare the patient with their normal baseline.
- Focusing on one observation instead of the overall trend.
- Assuming every new symptom is automatically caused by heart failure.
- Ignoring changes in exercise tolerance or ability to lie flat.
- Independently changing medicines or fluid restrictions outside your role.
- Delaying escalation while waiting for further deterioration.
Compare β assess β connect β escalate
Know the baseline
Establish what is usual for the patient and identify meaningful changes in symptoms, function and observations.
Build the whole picture
Connect breathing, circulation, oedema, relevant trends and the patient's wider clinical condition.
Escalate deterioration
Clearly describe what has changed and why the combined findings are causing concern.
Heart failure deterioration is often a pattern of change
Compare with baseline, recognise worsening symptoms, connect respiratory and circulatory findings and escalate meaningful deterioration promptly.
Explore Clinical Confidence β