Knowledge · Management, ethics and the portfolio

Three Calls at Once: Prioritisation Frameworks

By Dr Alexander Young with the Core Surgery Interview Team · Reviewed 11 September 2026

In brief

When three calls come at once, prioritise by physiological threat rather than by who called first: CCrISP teaches prioritising the patients most at risk, and the RCP NEWS2 chart fixes the thresholds, with an aggregate of 5 or 6 as the key threshold for urgent response and 7 or more needing an urgent or emergency response from a team with critical care skills.

Three calls at once are prioritised by threat to life, not by the order they arrived: gather one line of information on each, go to the patient whose physiology is worst, delegate what can safely be delegated, and escalate early. The Royal College of Surgeons' CCrISP course teaches exactly this, prioritising the patients most at risk, and the Royal College of Physicians' NEWS2 chart gives you the numbers to say out loud.

Key takeaways

The RCP NEWS2 chart states that an aggregate of 5 or 6 is the key threshold for an urgent response, and 7 or more needs an urgent or emergency response by a team that includes critical care skills.
A score of 3 in any single parameter is a red score on the RCP chart and needs an urgent ward-based response.
The RCS CCrISP course lists prioritising the patients most at risk, and planning to reduce that risk, among its learning outcomes.
Good Medical Practice 2024, paragraph 49, states that effective teamworking means communicating clearly and being willing to lead or follow as circumstances require.
The framework the panel wants is: clarify, rank by threat, act on the sickest, delegate the rest with clear instructions, escalate, and close the loop.

What is the principle behind prioritising three calls at once?

The principle is that the sickest patient is seen first, and that a surgical SHO on call is a coordinator of a team, not a lone worker who must do everything in person.

The Royal College of Surgeons' CCrISP course states that learners will prioritise those patients who are at most risk and plan to reduce their risk of adverse outcomes.

Good Medical Practice 2024, paragraph 48, states that you must treat colleagues with kindness, courtesy and respect, and paragraph 49 lists listening, communicating clearly and being willing to lead or follow as the components of effective teamworking.

In practice, that means the nurse who bleeped you is part of the answer. What they can do while you are on the way is as important as what you will do when you arrive.

Which framework should you name for prioritisation?

Name CCrISP for the structure and NEWS2 for the ranking, because both are published and both are what the CST panel expects a surgical SHO to use.

The RCP NEWS2 chart of thresholds and triggers, published in 2017, sets four bands: aggregate 0 to 4 is low risk with a ward-based response; a red score of 3 in any parameter is low to medium risk with an urgent ward-based response.

An aggregate of 5 or 6 is medium risk and the key threshold for an urgent response. An aggregate of 7 or more is high risk and needs an urgent or emergency response by a team with critical care skills, including airway management.

CCrISP's three stages then structure what you do on arrival: immediate management by ABCDE, a full assessment of chart, history, examination and results, and a decision to treat, investigate or escalate with a plan.

How do you gather information in the first thirty seconds?

Ask each caller three things: what the NEWS2 is, what has changed, and what they can do right now. That converts three vague bleeps into a ranked list.

What are the observations and the NEWS2 trend, not just the latest set?
What is the patient's operation and post-operative day, and what changed in the last hour?
Is there an escalation plan or ceiling of care in the notes?
What can the caller start now: oxygen, repeat observations, a blood gas kit, a cannula, calling the outreach team?

That said, a caller who sounds frightened about a patient with a normal score is still a priority. NEWS2 is a trigger, not a substitute for the nurse's judgement or yours.

How would a worked scenario run in the station?

A typical CST scenario: at 02:00 you are bleeped three times in a minute. Bay 4 has a day-two anterior resection with a NEWS2 of 8. The emergency department wants you to review a probable appendicitis. A nurse needs a cannula for antibiotics due now.

Step one: rank by threat

The NEWS2 of 8 is above the RCP threshold of 7 for an emergency response, so that patient comes first. The appendicitis is stable and can wait a short time. The cannula is a task, not a patient.

Step two: act on the sickest, using the team

Ask the ward nurse to start oxygen, repeat the observations, prepare a gas and cultures, and call the critical care outreach team if the trust uses one at 7 or more. Call your registrar now, before you arrive, and say the score.

Step three: delegate the rest with clear instructions

Ask whether a colleague, a nurse practitioner or the night team can site the cannula, and whether the pharmacist or nurse in charge can confirm the dose may be delayed thirty minutes. Tell the emergency department your expected time and what would make them call again.

Step four: close the loop

After the sick patient is stable and handed to the registrar, go back to the other two calls, document each with the time, and hand over anything unfinished in an SBAR order: situation, background, assessment, recommendation.

What is the interviewer listening for?

The CST panel listens for the ranking said with numbers, the delegation said with names, and the escalation said before you have left the phone.

The NEWS2 thresholds of 5 or 6 and 7 or more stated correctly, from the RCP chart
Information gathered from each caller before deciding, not a guess about who sounds worst
Delegation that is specific: who does what, by when, and what they should do if it goes wrong
The registrar called early and told the score, the plan and what you want from them
Documentation with times, and a handover that survives your shift ending

What is the trap in this question?

The trap is answering in order of arrival, or trying to do all three tasks yourself because delegating feels like shirking.

The other trap is silence: taking the calls and telling nobody. Good Medical Practice 2024, paragraph 49, describes teamworking as communication in both directions, so the plan is said to the nurse, to the emergency department and to the registrar.

A subtler trap is forgetting the third call once the emergency is over. The panel often asks what happened to the cannula, and the right answer is a time, a name and a check.

What is the escalation route?

Escalate to the surgical registrar for any patient at the NEWS2 threshold of 5 or more, and to the registrar plus the critical care or outreach team at 7 or more, as the RCP chart requires a team with critical care skills.

If the registrar is scrubbed, the route is the consultant on call directly, then the medical registrar or the anaesthetic registrar for immediate help with a patient who is failing. Say the fallback out loud.

If workload is unsafe, that is itself something to escalate: to the site manager or coordinator overnight, and to your supervisor afterwards, so the rota is fixed rather than survived.

How does prioritisation link to the portfolio domain?

Prioritisation links to the CST portfolio through the Quality Improvement and Clinical Audit domain, because escalation delays and NEWS2 compliance are among the most common ward audits a foundation doctor leads.

NHS England's 2025/26 CST portfolio guidance grades level A in that domain as leading all aspects of a surgically themed audit or QI project that demonstrated change. A re-audit of time-to-review after a NEWS2 escalation is a natural fit.

It also gives you a real example for the teamwork and leadership questions the same station asks.

How this comes up at the CST interview

The three-calls scenario is a staple of the CST management and clinical station, usually with a twist added after your first answer: the registrar does not answer, or the stable patient deteriorates.

Practise the four-step structure aloud with real numbers until it takes under ninety seconds. coresurgeryinterview has a scored prioritisation scenario in its bank of 299 questions, with AI-marked spoken practice: /Question-Bank/Sample-Questions.

Key evidence

Care of the Critically Ill Surgical Patient (CCrISP) course — Royal College of Surgeons of England (2026)
National Early Warning Score (NEWS) 2: Chart 2, NEWS thresholds and triggers — Royal College of Physicians (2017)
Good medical practice 2024 — General Medical Council (2024)
Core Surgical Training portfolio guidance for candidates (2025/26) — NHS England (2025)

FAQ

What NEWS2 score means you must go to that patient first?

The RCP NEWS2 chart states that an aggregate of 5 or 6 is the key threshold for an urgent response, and that 7 or more needs an urgent or emergency response from a team with critical care skills. A score of 3 in a single parameter is a red score needing an urgent ward-based response. The highest-risk band goes first.

Is it acceptable to delegate one of the calls?

Yes, if the task is within the delegate's competence and the instruction is specific. Good Medical Practice 2024, paragraph 49, describes teamworking as being willing to lead or follow as circumstances require, and a cannula or a repeat set of observations is a task other team members can do while you attend the sickest patient.

When should you call the registrar during three simultaneous calls?

Before you reach the sickest patient, not after. Say the NEWS2 score, the trend, what you have asked the nurse to start, and what you want from the registrar. Early escalation is a mark of safety at the CST interview, not of weakness.

What framework should you name in the answer?

Name CCrISP for the structured approach and NEWS2 for the ranking. The RCS CCrISP course lists prioritising the patients most at risk as a learning outcome, and the RCP NEWS2 chart supplies the thresholds of 5 or 6 and 7 or more.

What if all three patients look critically unwell?

Then the workload exceeds one doctor and the answer is to say so: call the registrar and the critical care outreach team at once, ask the nurse in charge to allocate staff, and attend the patient with the worst airway, breathing or circulation while help arrives.

How should the unfinished calls be handed over?

In an SBAR order, situation, background, assessment and recommendation, with a time on each entry and a named person responsible for the next action, so nothing is lost when the shift changes.

The Core Surgery Interview Team

Written and maintained by doctors who have sat and scored well at this interview, and reviewed against the current published guideline in each case. Guidance changes — check the source before you rely on a threshold.

Last reviewed 11 September 2026

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