Palliative Care Emergencies in MRCP PACES: Every Candidate's Survival Guide

Palliative care emergencies are among the most high-yield yet under-revised topics in MRCP PACES. They appear across Stations 2 (History Taking), 4 (Communication), and 5 (Integrated Assessment), and they have a knack for exposing candidates who can talk about chronic disease management but freeze when a palliative patient deteriorates acutely.

As a PACES examiner, I have watched even strong candidates stumble here — not because they lack knowledge, but because they fail to recognise the emergency, escalate appropriately, and balance symptom control with honesty. This guide covers the four canonical palliative care emergencies, their guideline-based management, and how to present them at a consultative, registrar-level standard.

Why Palliative Care Emergencies Matter in PACES

The PACES23 format rewards candidates who demonstrate:

1. Rapid recognition of acutely unwell palliative patients

2. Guideline-concordant management (NICE, SIGN, local palliative guidelines)

3. Senior-level communication — explaining prognosis, involving MDT, and respecting patient autonomy

4. Ethical reasoning — balancing active treatment vs. comfort-focused care

Examiners are not looking for a palliative care specialist. They are looking for a safe, thoughtful registrar who knows when to escalate, when to de-escalate, and how to communicate honestly.

The Four Palliative Care Emergencies You Must Master

1. Malignant Spinal Cord Compression (MSCC)

Why it is examined: MSCC is a time-critical emergency where delayed management leads to irreversible paraplegia. It is a classic Station 5 case (patient with known cancer presenting with back pain and leg weakness) and frequently appears in Station 4 communication scenarios.

Red Flag Symptoms to Elicit in History

Examiner Tip: In Station 2, if a cancer patient mentions new back pain, ask about bladder and bowel function, mobility, and sensory changes immediately. This demonstrates safe, systematic thinking.

Immediate Management (NICE NG94 — 2018)

1. Urgent MRI whole spine (within 24 hours if suspected; within 24 hours if established neurological deficit)

   • If MSCC confirmed, refer to specialist MSCC coordinator or clinical oncology within 24 hours

2. Dexamethasone 16 mg PO/IV (loading dose) — reduces oedema and pain

3. Consider analgesia — follow WHO cancer pain ladder; avoid NSAIDs if renal impairment or until renal function checked

4. Definitive treatment: Radiotherapy (single fraction 8 Gy is standard for most) or surgical decompression (for selected patients with unstable spine or single site of compression)

Key Communication Points for Station 4

• Explain that time matters: early treatment can preserve mobility

• Discuss the role of steroids honestly (benefits vs. side effects)

• Address prognosis gently: outcomes depend on performance status and primary tumour

• Involve the patient in decisions: radiotherapy vs. comfort care if prognosis is very poor

2. Superior Vena Cava Obstruction (SVCO)

Why it is examined: SVCO presents dramatically — facial swelling, distended chest veins, and breathlessness — and tests whether candidates can manage a visually alarming presentation calmly.

Classic Presentation

• Facial and neck swelling (worse on leaning forward or bending)

• Distended chest and neck veins

• Breathlessness — the most distressing symptom

• Cough, hoarseness (recurrent laryngeal nerve involvement)

• Arm swelling (particularly with subclavian compression)

• Cerebral symptoms in severe cases: headache, visual disturbance, syncope

Common Underlying Causes

• Lung cancer (most common — small cell and squamous)

• Lymphoma (non-Hodgkin's)

• Metastatic disease (breast, germ cell tumours)

• Thrombosis (central line-associated, acquired thrombophilia)

Management (NICE NG31 — 2014)

1. Urgent staging CT chest with contrast (if not previously diagnosed, arrange urgent biopsy)

2. Elevate the head of the bed — provides symptomatic relief

3. Oxygen if hypoxic or breathless

4. Dexamethasone 8–16 mg (particularly for lymphoma or if inflammation contributes)

5. Anticoagulation if thrombus is identified (LMWH initially; warfarin/DOAC once stable)

6. Definitive treatment:

   • Stent insertion (venous stenting) — rapid symptom relief, especially for severe/stridor-type presentations

   • Radiotherapy — for chemo-resistant tumours

   • Chemotherapy — for chemo-sensitive tumours (SCLC, lymphoma)

What Examiners Want to Hear

• "I would assess the patient's airway and breathing first, as SVCO can compromise the airway."

• "I would involve the clinical oncology and interventional radiology teams urgently."

• "I would explain to the patient that this is a known complication of their cancer and that we have treatments to relieve the pressure."

3. Hypercalcaemia of Malignancy

Why it is examined: Hypercalcaemia is the most common metabolic emergency in cancer patients, affecting up to 30% of patients at some stage. It frequently appears in Station 5 as a patient with known cancer presenting with confusion, constipation, or bone pain.

Clinical Features

The mnemonic "Stones, bones, groans, and psychic moans" applies, but in palliative patients, the picture is often subtler:

• Neurological: Confusion, lethargy, drowsiness (may mimic opiate toxicity)

• Gastrointestinal: Nausea, vomiting, constipation, abdominal pain

• Renal: Polyuria, polydipsia, dehydration, AKI

• Cardiac: Shortened QT interval (on ECG), arrhythmias in severe cases

Diagnostic Threshold

• Corrected calcium > 2.6 mmol/L (symptomatic emergency typically > 3.0 mmol/L)

• Always check albumin and calculate corrected calcium

• Exclude other causes: PTH, vitamin D, myeloma screen if appropriate

Management (NICE & British Committee for Standards in Haematology Guidelines)

1. IV fluid resuscitation: 0.9% sodium chloride, 4–6 litres over 24 hours (start with 1 litre over 4 hours, then reassess)

   • Monitor urine output, renal function, and cardiac status

2. IV bisphosphonate (once adequately hydrated):

   • Zoledronic acid 4 mg IV over 15 minutes (first-line)

   • Pamidronate 60–90 mg IV over 2 hours (alternative)

   • Effects last 3–4 weeks; repeat as needed

3. Denosumab 120 mg SC (for bisphosphonate-resistant or -refractory hypercalcaemia; also if renal impairment prevents bisphosphonate use)

4. Calcitonin (200 IU SC) — rapid but short-lived effect; useful for severe, symptomatic hypercalcaemia while waiting for bisphosphonate to work

5. Stop causative medications (thiazide diuretics, calcium supplements, vitamin D analogues)

6. Consider underlying disease treatment (chemotherapy, radiotherapy for bone metastases)

Clinical Pearl for PACES: Hypercalcaemia can mimic opiate toxicity in palliative patients. Always check calcium in a cancer patient who becomes drowsy, even if you suspect over-medication.

4. Neutropenic Sepsis

Why it is examined: Neutropenic sepsis carries a mortality rate of 2–5% even with prompt treatment. It is the paradigmatic oncologic emergency and appears frequently in Station 5 (acute presentation with recent chemotherapy).

Diagnostic Criteria (NICE CG151 — 2012)

• Neutrophil count < 0.5 × 10⁹/L (or < 1.0 × 10⁹/L if expected to nadir)

• Temperature ≥ 38°C (single reading) OR hypothermia (< 36°C)

• OR systemically unwell patient even if afebrile (elderly or immunosuppressed patients may not mount a fever)

Immediate Management — The "Door-to-Needle within 1 Hour" Rule

1. Assess using Sepsis Six:

   • Give oxygen, take blood cultures, give IV fluids, give IV antibiotics, measure serum lactate, measure urine output

2. Empirical antibiotics (per local microbiology guidelines, but typically):

   • Piperacillin-tazobactam 4.5 g IV TDS (first-line monotherapy)

   • Add vancomycin/teicoplanin if suspected line infection, MRSA risk, or unstable patient

   • Add gentamicin if septic shock or high-risk per MASCC score

3. ** Investigations:**

   • FBC, U&E, LFTs, CRP, lactate, coagulation

   • Blood cultures (peripheral AND from central line if present)

   • Urine culture, chest X-ray, and cultures from potential sites

4. Source control: Remove/change central lines if line infection suspected

5. Escalate to critical care if signs of septic shock, AKI, or respiratory failure

Communication in Station 4

• Explain to the patient: "Your white blood cells are low from the chemotherapy, which means you cannot fight infections. We need to start strong antibiotics straight away while we wait for results."

• Discuss with family: Emphasise that neutropenic sepsis is a known risk of chemotherapy, that prompt treatment usually works, but that close monitoring is needed.

• Address goals of care: If the patient is at the end of life on palliative chemotherapy, discuss whether ICU escalation is appropriate and aligned with their wishes.

Decision-Making Framework: When to Escalate vs. Shift to Comfort Care

This is where PACES candidates earn or lose their marks. Examiners are testing whether you can have the difficult conversation about de-escalation.

Ask Yourself These Questions:

The "Reversibility Conversation" in Station 4

"Mrs X, your husband is very unwell with an infection. We have started antibiotics and fluids. However, given how frail he is and how advanced his cancer is, I want to be honest with you — there is a chance the treatment may not work. If that happens, our focus will shift entirely to keeping him comfortable and free from pain. Can I ask what he would have wanted in this situation?"

This kind of honest, compassionate, and senior-level communication is what examiners want to hear.

High-Yield Syringe Driver Medications for Symptom Control

In PACES, knowing common subcutaneous medications for palliative symptom control demonstrates practical competence:

Exam Note: You are not expected to prescribe these unsupervised, but being able to discuss the rationale shows readiness for registrar-level practice.

Common Pitfalls That Cost Marks

❌ Missing the Diagnosis

The most common reason candidates fail Station 5 with palliative cases is not identifying the emergency. A cancer patient with back pain needs MSCC workup. A patient on chemotherapy with a fever needs neutropenic sepsis protocols.

❌ Over-Treating Without Discussing Goals

Starting aggressive treatment for an actively dying patient without discussing goals of care shows a lack of holistic thinking.

❌ Medical Jargon Without Compassion

"The patient has SVCO and requires urgent stenting" may be correct, but it lacks the patient-centred framing examiners reward.

❌ Forgetting the MDT

Palliative care emergencies require multidisciplinary input. Always mention involving oncology, palliative care, dietitians, physiotherapists, and clinical nurse specialists.

Practical Revision Strategy for Palliative Emergencies

1. Memorise the four emergencies and their key management steps — these are non-negotiable.

2. Practise communication scenarios with a partner or AI patient simulation — focus on the transition from active treatment to comfort care.

3. Know the key guidelines: NICE NG94 (MSCC), NICE NG31 (SVCO), NICE CG151 (neutropenic sepsis).

4. Learn the local palliative care referral pathway — know when and how to involve the palliative care team.

5. Familiarise yourself with syringe driver medications — not to prescribe, but to discuss intelligently.

Final Thoughts

Palliative care emergencies test everything PACES is designed to assess — clinical knowledge, ethical reasoning, communication, and humanity. The candidates who succeed are not those who memorise every dose, but those who can think clearly under pressure, communicate honestly, and demonstrate genuine compassion for patients facing life-limiting illness.

Approach these cases with confidence, humility, and structured thinking — and you will demonstrate the competence of a safe and thoughtful registrar, ready for the next step in training.

Key References

• NICE NG94: Metastatic spinal cord compression in adults (2018)

• NICE NG31: Prevention and management of neutropenic sepsis (2012)

• NICE CG151: Neutropenic sepsis: prevention and management (2012)

• British Committee for Standards in Haematology: Hypercalcaemia guidelines

• Scottish Palliative Care Guidelines (NHS Scotland)

Good luck with your PACES preparation. Remember: in palliative care, being honest is not the same as giving up — it is providing the best possible care with clarity and compassion.