1 · Identify the patient who needs hospital care
Severe breathlessness at rest, hypoxemia, pulmonary edema, ongoing chest pain, syncope, or signs of shock require emergency evaluation. Confusion, cold/clammy extremities, and hypotension can suggest poor perfusion.
Activate EMS for an unstable patient. Do not delay transport for outpatient testing or attempt to manage severe decompensation with an oral diuretic adjustment alone.[1], [3]
2 · Assess congestion and perfusion
Compare the patient with their usual baseline, including symptoms, weight, vital signs, and functional capacity.
Is fluid accumulating?
- More exertional dyspnea or orthopnea?
- Waking breathless at night?
- Weight gain, leg edema, or abdominal fullness?
- Raised jugular venous pressure or lung crackles?
Is perfusion adequate?
- Blood pressure and pulse?
- Alertness and extremity warmth?
- Dizziness, marked weakness, or syncope?
- New reduction in urine output?
[1], [3]
Look at the whole picture.Weight trends and symptoms help identify worsening congestion. Clear lungs, absent edema, or a single unchanged weight do not reliably exclude heart failure or elevated filling pressures.
3 · Ask why the patient is getting worse
Missed treatment or barriers to care
Actual medication use, refill access, cost, and the prescribed diuretic plan.
Dietary change
Increased sodium intake or deviation from an individualized fluid plan.
New medication
NSAIDs and other drugs that promote fluid retention or impair cardiac function.
Intercurrent illness
Infection, ischemic symptoms, uncontrolled BP, arrhythmia, anemia, or thyroid disease.
Review new prescriptions, over-the-counter products, and recent hospitalizations.[1]
4 · Gather the evidence
Review the EKG, renal function, electrolytes, and available prior cardiac reports. BNP/NT-proBNP can support the evaluation of unexplained dyspnea but must be interpreted in clinical context. Additional tests depend on suspected causes.
Send the prior EF, study date, valve findings, symptom trajectory, and medication list with the referral. Cardiology can coordinate cardiac imaging, confirm the HF phenotype, and investigate the cause.[1]
Dyspnea and edema need a differential diagnosis.Consider pulmonary disease, thromboembolism, renal disease, anemia, and other causes when the presentation or available evidence does not fit heart failure.
5 · Act on stable worsening congestion
For a stable patient with established HF and mild worsening congestion, review the current treatment plan and coordinate with the managing team. Loop diuretics relieve fluid overload; adjustment should account for blood pressure, kidney function, electrolytes, and the response to treatment.
Set a near-term reassessment and arrange laboratory monitoring according to medication changes and clinical risk. Persistent symptoms, inadequate response, worsening renal function, or inability to manage safely as an outpatient should prompt escalation.[4]
New suspected HF or substantial deterioration needs prompt clinical assessment rather than simply adding a diuretic and scheduling a distant follow-up.
6 · Choose the referral pathway
Emergency care
Respiratory distress, hypoxemia, acute pulmonary edema, ongoing ischemic symptoms, or poor perfusion/shock.
Prompt cardiology assessment
New/uncertain HF, newly reduced EF, increasing congestion, or persistent symptoms despite treatment.
Ongoing coordinated care
Stable established HF with a clear treatment, monitoring, and follow-up plan.
Consider advanced HF referral for recurrent admissions, escalating diuretic requirements, refractory symptoms, worsening organ function, or low BP limiting treatment.[4]
Give the patient a practical action plan
Ask patients to track symptoms and daily weight when appropriate, using the same scale and similar conditions. Explain whom to call for new breathlessness, edema, or rapid weight change. Specify individualized thresholds and any diuretic instructions in writing.
Teach emergency symptoms and confirm medication access. A weight trend is a prompt for assessment; patients should not change doses without an agreed plan.[2]
Clinical takeaway: Assess stability, congestion, and perfusion; look for triggers; coordinate treatment and timely reassessment; refer before repeated decompensation becomes the pattern.