MOH GP Competitive Appointment Exam study materials
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Saturday Morning Epigastric Pain in a Sole-GP Clinic

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Saturday Morning Epigastric Pain in a Sole-GP Clinic

Mr Tan, 58, walks into your neighbourhood clinic at 10:40 on a Saturday - the only GP practice open in the estate. He describes three days of "gastric" pain: a burning epigastric discomfort that today has become a heavy pressure spreading to his left jaw, with nausea and sweating. He took two ibuprofen 400 mg tablets an hour ago and has been on naproxen for knee osteoarthritis for six weeks. He smokes 20 cigarettes a day, has never had his blood pressure checked, and his father died of a myocardial infarction at 62. He looks pale and clammy. Pulse 104 and irregular, BP 148/92, respiratory rate 22, SpO2 97% on room air, temperature 36.8°C. Your clinic has a 12-lead ECG machine, aspirin, sublingual glyceryl trinitrate, oxygen and an AED, but no troponin testing, no monitored bed and one staff nurse on duty. The nearest emergency department is 15 minutes away by ambulance. Mr Tan says he would rather "just get an injection and go home" because he is hosting his daughter's wedding tea ceremony at 2pm.

1. Outline your immediate assessment and disposition for Mr Tan, justifying each step.

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Working diagnosis. The symptom cluster - exertional-pattern retrosternal/epigastric pressure radiating to the jaw, diaphoresis, nausea, age, smoking, family history and NSAID exposure - must be treated as possible acute coronary syndrome until excluded. NSAID use raises the prior probability of both peptic ulcer disease and cardiovascular events, so "gastritis" cannot be assumed. The irregular pulse of 104 also raises atrial fibrillation with rapid ventricular response, which can itself present with ischaemic chest discomfort.

Actions in the first 10 minutes.

  1. Rest, semi-recumbent, continuous observation by the nurse; do not leave him alone.
  2. 12-lead ECG immediately and repeat if the first is non-diagnostic - look for ST elevation/depression, T-wave inversion, and the rhythm (confirming or excluding AF).
  3. Chewed aspirin 300 mg unless there is a genuine allergy or active bleeding; sublingual GTN if pain persists and systolic BP allows; oxygen only if SpO2 falls below 94% - routine oxygen in a patient at 97% is not indicated.
  4. No intramuscular injection (it complicates subsequent anticoagulation/PCI and is unnecessary), no further NSAIDs, no oral antacid as a "therapeutic trial" that would delay transfer.
  5. Secure IV access if you are competent and equipped; otherwise leave it to the ambulance crew.

Disposition. Call 995 for conveyance to an emergency department with catheterisation laboratory capability, regardless of whether the ECG is normal - a normal ECG in the first hours does not exclude ACS, and the clinic cannot perform troponin testing or rhythm monitoring. A GP clinic cannot safely "rule out" this presentation, and a patient who deteriorates en route without monitoring is a preventable death.

If he refuses. Explore the reason (the wedding), state the risk plainly in his own terms, document the discussion, offer to call his family, and if he still declines, arrange urgent private transport with a companion, give written advice on when to call 995, and document capacity and refusal carefully.

2. How would you communicate the need for emergency transfer to a patient who wants a quick injection, and what would you document?

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Framing. I would avoid arguing about whether it is "gastritis" - that invites a debate the patient cannot lose. Instead I would name the concern and the consequence: "Mr Tan, the pain you are describing, with the sweating and the jaw, is the pattern we worry about for a heart attack. I cannot test for that here. If it is your heart, the next hour matters a lot for how much muscle we save."

Addressing the objection. The wedding is the real barrier, so I would address it concretely rather than dismiss it: an ambulance now is likely to get him assessed and, if all is well, back sooner than a collapse at the tea ceremony; and I would offer to have the nurse call his wife or daughter so someone can meet him at the hospital. Offering a practical alternative preserves his autonomy and reduces the sense of being overruled.

Avoiding false reassurance. I would not promise that the injection will help, nor imply that the ECG "rules it out".

Documentation. Time of arrival and assessment; vital signs with times; the ECG findings or that it was non-diagnostic; drugs given with doses and routes; that 995 was activated and at what time; the exact words used in explaining risk; the patient's response and, if he refused, the capacity assessment, who was informed, the alternative transport arranged, and the safety-netting advice given. A chaperone or the nurse should witness the refusal. This record protects the patient (it triggers handover to the ambulance crew and the ED) as much as the doctor.