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Medical question bank from preclinical to clinical

Practise every discipline of medical school with explained SBAs.

Recall Engine's medical question bank has 30,000+ single best answer questions, 1,500+ topic notes, and 300+ clinical skills guides from preclinical sciences to clinical specialties. Every question explains why the answer is right and why each other option is wrong.

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30,000+
topic notes
1,500+
clinical skills guides
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Questions by stage

The bank runs from the preclinical sciences to the clinical specialties. Pick a stage to see its disciplines, how many topics each has, and sample questions.

What is inside

Three kinds of material written for medical school exams. Questions are single best answer items with a full explanation, topic notes summarise what each topic tests, and clinical skills guides take you through history taking, examination, and OSCE stations step by step.

  • Single best answer questions

    Clinical vignettes and direct questions with four or five options. Every option is explained.

  • Topic notes

    Notes by topic to read before you practise and again when you revise.

  • Clinical skills guides

    History, examination, and OSCE station guides in steps. Each step gives the patient phrase in English and Egyptian Arabic.

How practice works

You answer questions in short sessions and read the explanation for every option. Study mode explains each answer straight away. Timed mode saves the explanations for the end like a real paper.

  1. Pick what to practise

    Choose a stage, a discipline, a body system, or one topic. Sessions take 10, 20, or 40 questions. A small topic can be taken whole.

  2. Answer in study or timed mode

    Study mode explains each answer as soon as you choose it. Timed mode gives 60, 90, or 120 seconds a question and explains everything at the end.

  3. Read why every option is right or wrong

    Each explanation covers the answer, why each other option is wrong, and the key point.

  4. Come back to what you missed

    Filter a new session to unseen, incorrect, or bookmarked questions. Then read the topic note or the clinical skills guide.

Sample questions with explanations

These 5 are published questions from the bank shown exactly as students see them. Open an answer to see why it is right and why every other option is wrong.

Question 1 · Obstetrics and gynaecology, Clinical

A woman receives the complete 4-g magnesium loading dose, then exactly 6 hours of the 1-g/hour maintenance infusion before birth. How much magnesium has she received in total?

  1. A. 8 g
  2. B. 12 g
  3. C. 10 g
  4. D. 6 g
  5. E. 4 g
Show the answer and explanation

Answer: C. 10 g

The six-hour maintenance infusion delivers 6 g. Add the completed 4-g loading dose to obtain 10 g in total. Birth then ends the neuroprotection course rather than extending the infusion to 24 hours.

Why the other options are wrong

  • A. 8 g: The supplied loading and six-hour infusion sum to 10 g.
  • B. 12 g: This exceeds the amount delivered during the six-hour maintenance interval.
  • D. 6 g: This counts only maintenance and omits the 4-g loading dose.
  • E. 4 g: This counts the loading dose but omits the six hours of maintenance.

Key point: For this regimen, total magnesium is the 4-g load plus 1 g for each completed maintenance hour.

Question 2 · Physiology, Preclinical

Which reflex acts synergistically with the vestibulospinal reflex to maintain body posture?

  1. A. Anticipatory motor response
  2. B. Cervicocollic reflex
  3. C. Vestibulo-ocular reflex
  4. D. Cervicospinal reflex
  5. E. Vestibulocollic reflex
Show the answer and explanation

Answer: D. Cervicospinal reflex

Vestibulospinal and cervicospinal reflexes act synergistically to maintain body posture. The vestibulocollic (head-neck) and cervicocollic (neck-neck) reflexes are other related reflexes.

Why the other options are wrong

  • A. Anticipatory motor response: Anticipatory motor responses are the postural adjustments made ahead of a centre of gravity shift, while the reflex that works with the vestibulospinal reflex is the cervicospinal reflex.
  • B. Cervicocollic reflex: The cervicocollic reflex is the neck-neck reflex.
  • C. Vestibulo-ocular reflex: The vestibulo-ocular reflex produces a compensating eye movement after rotation is detected.
  • E. Vestibulocollic reflex: The vestibulocollic reflex is the head-neck reflex.

Key point: Vestibulospinal and cervicospinal reflexes act together to maintain body posture.

Question 3 · Surgery, Clinical

A 38-year-old man is ready for discharge after his first attack of acute pancreatitis, which settled in 4 days. He drinks about 70 units of alcohol a week. Ultrasound shows a normal gallbladder with no stones, triglycerides are 1.6 mmol/L, and calcium is normal. He asks what will lower his chance of another attack. Which measure is best supported to reduce recurrence?

  1. A. Elective laparoscopic cholecystectomy within the next few weeks
  2. B. Long-term fibrate therapy to keep triglycerides suppressed
  3. C. Pancreatic enzyme capsules with meals for the next six months
  4. D. A single leaflet on safe drinking limits given at discharge
  5. E. Alcohol intervention now, repeated at 6-monthly clinic visits
Show the answer and explanation

Answer: E. Alcohol intervention now, repeated at 6-monthly clinic visits

His attack is alcohol-related: no gallstones, normal triglycerides, and normal calcium, with heavy drinking. Recurrence after a first attack is common. In a randomised trial, a nurse-led alcohol intervention before discharge, repeated every 6 months, reduced recurrent attacks over 2 years compared with a single intervention, with the benefit appearing after the first 6 months. Abstinence is the cause-specific prevention.

Why the other options are wrong

  • A. Elective laparoscopic cholecystectomy within the next few weeks: Cholecystectomy prevents recurrent gallstone pancreatitis, but his ultrasound shows no stones and the history points to alcohol.
  • B. Long-term fibrate therapy to keep triglycerides suppressed: Fibrates treat hypertriglyceridaemia-induced pancreatitis; a triglyceride level of 1.6 mmol/L excludes that cause here.
  • C. Pancreatic enzyme capsules with meals for the next six months: Enzyme capsules treat exocrine insufficiency, which a single mild attack does not cause, and they do nothing for his alcohol exposure.
  • D. A single leaflet on safe drinking limits given at discharge: A one-off leaflet is the weakest form of advice; the trial benefit came from repeated structured intervention after the first 6 months.

Key point: Prevention after acute pancreatitis targets the cause; after an alcohol-related attack, structured alcohol intervention started before discharge and repeated at follow-up visits reduces recurrent attacks.

Question 4 · Obstetrics and gynaecology, Clinical

An adolescent has persistent menstrual pain despite correctly used, suitable medicines. It continues to prevent normal school activities. What is the most appropriate response to the inadequate treatment benefit?

  1. A. Introduce the first trial of an NSAID for an uncomplicated untreated pattern
  2. B. Review a confirmed endometrioma larger than 3 cm within surveillance
  3. C. Review a completed fertility investigation to choose conception treatment
  4. D. Review recovery from a recent operation for pelvic disease
  5. E. Review treatment use and assess possible secondary causes through an appropriate gynaecological pathway
Show the answer and explanation

Answer: E. Review treatment use and assess possible secondary causes through an appropriate gynaecological pathway

Persistent function-limiting pain despite suitable treatment warrants reassessment rather than assuming that primary dysmenorrhea remains the complete explanation. Endometriosis is one secondary possibility, and an age-appropriate pathway can be used.

Why the other options are wrong

  • A. Introduce the first trial of an NSAID for an uncomplicated untreated pattern: Appropriate medicines have already been used without sufficient benefit.
  • B. Review a confirmed endometrioma larger than 3 cm within surveillance: No endometrioma has been identified.
  • C. Review a completed fertility investigation to choose conception treatment: No completed fertility investigation or current conception treatment question is supplied.
  • D. Review recovery from a recent operation for pelvic disease: No recent operation is described.

Key point: Reassess persistent dysmenorrhea after inadequate suitable treatment and investigate secondary causes.

References

Question 5 · Obstetrics and gynaecology, Clinical

A well-circumscribed uterine mass has a whorled cut surface. Microscopy shows interlacing bundles of differentiated smooth-muscle cells with little cellular variation. Which diagnosis best fits these combined findings?

  1. A. Ovarian endometrioma
  2. B. Endometrial polyp
  3. C. Endometrial hyperplasia
  4. D. Uterine leiomyoma
  5. E. Adenomyosis
Show the answer and explanation

Answer: D. Uterine leiomyoma

The whorled gross pattern and differentiated interlacing smooth-muscle bundles fit a leiomyoma. Histological assessment, rather than a gross photograph alone, establishes the relevant tissue diagnosis.

Why the other options are wrong

  • A. Ovarian endometrioma: The mass is uterine smooth muscle rather than an ovarian lesion containing ectopic endometrial tissue.
  • B. Endometrial polyp: The described tissue is a smooth-muscle mass rather than a focal endometrial growth.
  • C. Endometrial hyperplasia: The pathology is not a proliferative abnormality of the uterine lining.
  • E. Adenomyosis: Adenomyosis involves endometrial glands and stroma within the myometrium rather than this described smooth-muscle tumour pattern.

Key point: Link a whorled uterine mass and benign smooth-muscle bundles with leiomyoma.

References

Questions students ask

The trial opens the whole library with no card. The question bank uses no credits. Here are short answers to what students ask before they start.

How does the free trial work?

The whole library is open for 7 days with no card. Then you keep 5 new questions a day and everything you've answered.

Do library questions use credits?

No. The question bank, notes, and clinical guides use no credits. Credits are only for sets made from your own lectures.

Can I trust the answers?

Lecture answers name their page to check against your slides. Library questions explain every option. You can report any you doubt.

Does a plan renew automatically?

No. One payment covers 30 days on monthly or 365 days on yearly and nothing renews by itself.

What happens when my plan ends?

Your own lectures, generated sets, and progress stay. The library returns to the free daily allowance until you renew.

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