She examines a 19 year old female patient admitted with asthma on the medical assessment ward for revision purposes.

The patient has a past medical history she has the occasional migraine, and eczema.
The observations are as follows.

BP 128/70

Pulse  98 regular

Fingerprick blood glucose 8.3

Oxygen Sats 97% on Air

She performs a cardiovascular and opthalmological examination.

Cardiovascular examination: Split S2 (second heart sound) on deep inspiration.

Ophthalmology examination: Normal Eye movements. Pupils 6mm and reactive to light. Eye movements normal. Visual fields normal. No scotoma. Fundoscopy examination of one eye is shown below…

Do you get this good a view when performing fundoscopy? Of course not, this is a digital retinal photograph-remember when you are using a hand held opthalmoscope you only get to view a bit of this at a time, which is why its important you should know which eye this is!

Why not have a go at the questions below? We’ll put up the answers in a couple of days…

The answer is….. b. Warfarin

Based on NICE Guidance 36 (AF) and the CHADS 2 scoring system.

The CHADS2 score is an excellent aide memoir to anticoagulation in AF. It is based on:

SCORE

• 2 or over=Warfarin
• 1= Warfarin or aspirin
• 0=aspirin

This means our chap here will score:

• 1 for being >75
• 1 for being hypertensive

This means he should be treated with warfarin (assuming he has no contraindications)

A link to the original publication citation in circulation is available here. (link will open in a new window)

Get more questions like this in our free trial. ]]> http://medicaleducator.co.uk/answer-to-question-of-the-day-atrial-fibrillation.html/feed 1 http://medicaleducator.co.uk/whats-umap-anyway-a-guide-to-umap-from-medical-educator.html http://medicaleducator.co.uk/whats-umap-anyway-a-guide-to-umap-from-medical-educator.html#comments Mon, 09 Mar 2009 21:35:28 +0000 admin http://medicaleducator.co.uk/?p=340 UMAP is the Universities Medical Assessment Partnership and is relevant to many medical students from the UK.

UMAP, one organisation currently working to standardise medical student exam question content across medical schools

It’s essentially the organisation which is writing/ collecting a bank of medical student exam questions for use in ‘high stakes’ examinations, such as medical finals.

UMAP’s description of their activities can be found on their website: On the site they describe themselves as follows:

UMAP’s aim is to improve quality in high stakes written assessments across UK medical schools. UMAP runs best practice item writing sessions where clinical and academic staff come together to learn about item writing techniques and to represent their subject area in the developing question bank.

UMAP QA process

Once written, questions move on to be quality assured at UMAP question review meetings which are convened at our partner schools. Staff members with experience in assessment and who are familiar with UMAP style and technique check each question and amend as necessary to ensure the highest accuracy and conformity to question writing principles. Questions are then ready for use and are listed as part of selection documentation available to our partner medical schools.

Schools are invited to select the items they wish to use and then confirm their selections to us. Schools later return results data in an electronic format which is then analysed and uploaded into the UMAP bank. A summary of this data is displayed within question selection documentation to enable schools to make informed, evidence based, item choices.  [Accessed 4.03.09 from http://www.umap.org.uk/about/]

From their site they cover about 14 medical schools and they run an active recruitment of Specialist Registrars to write questions for their bank, most recently to our knowledge in Birmingham at a West Midlands General Internal Medicine training day.

UMAP currently publish on their site that as of October 2008 they have over 2500 questions for use in the these high stakes examinations. They acknowledge that they seem to be lacking in a few key areas, however they are currently working to address this.

What do you need to know about UMAP as a medical student? Well probably not that much. In fact all UMAP really are trying to do is generate sensible MCQ questions that are fair, and are well written. They have a reasonably complicated list of rules that a number of ME’s contributors have been talked through at a number of different times: overall though its not rocket science.

• you shouldn’t be able to answer a question just by using the investigation result or the stem on its own (e.g. a big intro and then showing an ECG with complete heart block etc.)
• The questions are aimed at core FY1 knowledge
• You should be able to guess the likely options for the answer (again straight forward)

In principle, when UMAP look at the answers for any given question, they check that these same answers seem reasonable. They also like the same level of detail for both (for example the answers should all be of similar length).

What about the stem’s themselves: again UMAP make some sensible judgements including avoidance of medical jargon, avoiding using the same words in the questions and the answers etc. They should be readable and comprehensible.

So is there any technique involved? Well yes! Look carefully at results an investigations. Its clear that UMAPs strategy will be not to spoon feed the reader. For example if an important feature is tachycardia the question may read as follows

Ther pulse rate was 124 – Rather than mentioning the tachycardia directly, or showing a picture of an ECG

The same goes for investigation reults: e.g. K+ 3.0 mmol/l (NR 3.5-5.5 mmol/l) rather than ‘hypokalaemia’

All this means is that you have to look carefully at the investigation answers, and then draw conclusions. The rest is guesswork? Not really. Simple mathematics state that you should rule out the maximum number of wrong answers, and maximise your chance of success.

Medical Educator or its wuestion writers have not contributed any questions to the UMAP quesiton bank and have no formal or informal association with the organisation. We’d be interested to hear students comments and opinions about the work done by UMAP.

EMQ’s are being increasingly used in research and papers have recently been published on their success in the USMLE. Its likely that many medical schools will adopt this N from many approach. An EMQ is simple: its a series of typically 6-10 answers, used a number of times with different question stems.They first cropped up in 1993 after work by Case and Swanson. Read more about EMQ’s and their development here.

Distracters

Distracters are being used to throw students off the scent, and in some ways discriminate from good and bad students. An example would be describing a history of a rash affecting the flexor surfaces and giving on e of the answers as psoriasis. Seeing the two together can lead to the assumption this is the correct answer. This is an example of a good discriminator, but EMQs can easily be written in such a way that the more capable student gets it wrong!

Take an example EMQ from our new section dedicated to them on the login site.

“A 64 year old homeless man presents after being found exposed under a bush shelter by paramedics. He is ‘tided over the night’ by the emergency department staff with an IVI of 5% dextrose. The next morning he is confused, and ataxic. On examination he has nystagmus. Which of the following is treatment is most likely to be effective?”

Students classically then have to pick from a range of answers:

• Aciclovir
• Ciprofloxacin
• Buscopan
• Omeprazole
• Gluten free diet
• Peg Interferon alpha
• Mesalazine
• Vitamin B Complex

Here’s the Answer from the main site:

“Nystagmus, and ataxia are features of cerebellar disease, with the addition of confusion this triad is suggestive of Wernickes Encephalopathy (vitamin B1 deficiency- thiamine). Risk factors: poor nutrition (+/- alcohol).

Thiamine is important in carbohydrate metabolism and the Krebs cycle: it’s vital to remember that dextrose presents a carbohydrate load, the excess of which cannot be effectively metabolised , leading to cell death.

Hence the treatment: Vitamin B complex: initially this is given as Intravenous Pabrinex © for 48-72 hours.”

The EMQ here does a number of things: You could use your knowledge of drugs alone to answer the question: An antiviral (acivlovir), quinalone antibiotic (ciprofloxacin), an antispasmodic (buscopan), a Proton pump inhibitor (omeprazole) a gluten free diet (!), etc.

Aciclovir would initially seem attractive for a possible encephalitis- there are some things that fit: confusion, other CNS signs? This is a form of a distracter-look at the history, and the role of the glucose drip.Here the answer has been worked through by correctly recognise the triad of opthalmoplegia, confusion and ataxia that isin keeping with the diagnosis of Wernickes.

So, we can see that EMQs look initially pretty intuative, but more are being written, and expect them to be coming to an exam near you soon.

You can work through some examples of EMQ’s to prepare for your medical finals with different question structures on the subscription section of our site.

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