Prescribing for acute uncomplicated cystitis
Write a prescription for acute uncomplicated cystitis and have every line marked: drug choice, dose, route, frequency and duration, checked against the patient's allergies, current medicines, renal function and the interaction database, with each error explained.
easy8 scoring rules
- Patient
- 34 years, female, 65 kg
- Diagnosis
- Acute uncomplicated cystitis
- Renal function
- eGFR 95 mL/min/1.73m²
- Allergies
- None known
The scenario
A 34-year-old woman presents with a 3-day history of dysuria, urinary frequency and urgency. She reports no fever, no flank pain, and no vaginal discharge. Her past medical history is unremarkable, and she takes no regular medicines. She has no known drug allergies. She is not pregnant. She weighs 65 kg. On examination, she is afebrile (temperature 36.8°C), blood pressure 118/76 mmHg, pulse 72 bpm. Abdominal examination is soft with no suprapubic tenderness. Renal angle is non-tender. Urine dipstick shows 3+ leucocyte esterase and 2+ nitrites, with a trace of blood. Serum creatinine is 0.8 mg/dL and eGFR is 95 mL/min/1.73 m². Liver function tests are normal. A urine culture has been sent, but the result is not yet available. Task: Write a prescription for an appropriate oral antibiotic, including dose, duration and counselling points.
What gets marked
- Whether you chose an indicated drug, and whether you avoided the contraindicated ones.
- Dose, route, frequency and duration against the range for this patient.
- Renal and hepatic dose adjustment where this patient's numbers demand it.
- Allergy cross-reactivity and interactions with the medicines already on the chart.
- The instructions and monitoring you write, not only the drug you pick.
8 scoring rules apply to this scenario. A single critical error fails the attempt whatever the score.
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A free account opens the prescription pad: search the formulary, write the chart, and have it marked line by line by the safety engine.
Taught in
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Educational content for students and clinicians in training. It does not replace professional judgement, local protocols or current prescribing information.