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Prescribing Safety Assessment: Blueprint-Driven Prep

A PSA strategy that mirrors the 8 item styles: prescribing, review, planning, info, calculations, ADRs, monitoring, data interpretation — with a BNF speed protocol.

Review date
Feb 2026
Reading time
12 min read
Author
Dr. Kola Tytler MBBS CertHE MBA MSt MRCGP
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Key points

  • The PSA is eight item styles — train each as a separate micro-skill.
  • Speed is the hidden constraint: practise under 120-minute conditions.
  • BNF navigation is a performance skill; drill it explicitly.

Official PSA structure (anchor your prep here)

The PSA blueprint describes eight item styles and a total of 200 marks completed within 2 hours. Your revision should map 1:1 to those eight item styles, not to random topic reading.
Most candidates ‘revise prescribing’ and hope it transfers. The PSA is more mechanical than that: it’s a set of recurring task types. If you can execute each task type fast and safely, your score rises even if your general pharmacology isn’t perfect.
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Step 1 — Make an 8-lane skills dashboard

Create a tracker with the 8 item styles as columns. After each practice set, log your accuracy and your failure mode (wrong drug, wrong dose, contraindication missed, monitoring forgotten, etc.). Your next session targets the weakest lane.
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Step 2 — Run a BNF ‘speed loop’ (10 minutes/day for 10 days)

Pick 10 common drugs daily. For each: locate dosing, contraindications, interactions, renal/hepatic cautions, pregnancy/breastfeeding, monitoring. Time yourself. The goal is *navigation fluency*, not memorising the BNF.
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Step 3 — Build a ‘never events’ list

Identify the catastrophic errors you keep flirting with (e.g., penicillin allergy, methotrexate weekly dosing, anticoagulant interactions). Convert each into a flashcard + a self-check rule you apply in every prescribing station.
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Step 4 — Practise calculations like an OSCE skill

Don’t ‘revise’ maths. Drill calculation item styles: mg/kg dosing, infusion rates, unit conversions. Write out your working cleanly and standardise your approach to reduce silly errors.
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Step 5 — Simulate the full 120 minutes at least twice

The PSA punishes slow perfectionism. Full mocks teach pacing, triage, and how to recover after a mistake without spiralling.
  • Dashboard tracks performance by item style (not by topic).
  • BNF speed loop completed (navigation fluency).
  • ‘Never events’ list created and rehearsed.
  • Two full-length timed simulations done.
  • Calculation template standardised (same steps every time).
SourcePSA — Official Blueprint (structure, marks, item styles)
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SourcePSA — Official site (overview and candidate resources)
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  • Create a tracker with the 8 item styles as columns. After each practice set, log your accuracy and your failure mode (wrong drug, wrong dose, contraindication missed, monitoring forgotten, etc.). Your next session targets the weakest lane.

    Return to this section

  • Pick 10 common drugs daily. For each: locate dosing, contraindications, interactions, renal/hepatic cautions, pregnancy/breastfeeding, monitoring. Time yourself. The goal is *navigation fluency*, not memorising the BNF.

    Return to this section

  • Identify the catastrophic errors you keep flirting with (e.g., penicillin allergy, methotrexate weekly dosing, anticoagulant interactions). Convert each into a flashcard + a self-check rule you apply in every prescribing station.

    Return to this section

  • Don’t ‘revise’ maths. Drill calculation item styles: mg/kg dosing, infusion rates, unit conversions. Write out your working cleanly and standardise your approach to reduce silly errors.

    Return to this section

  • The PSA punishes slow perfectionism. Full mocks teach pacing, triage, and how to recover after a mistake without spiralling.

    Return to this section
  • Return to this section
  • Return to this section
  • Return to this section
  • Return to this section
  • Return to this section

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