NBME Step 2 CK Form 7 Supination of the forearm with the elbow in slight flexion (NBME Answers)

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Retired NBME Step 2 CK Form 7 Answers

step2ck_form7/Block 2/Question#35 (reveal difficulty score)
A previously healthy 4-year-old boy is ...
Supination of the forearm with the elbow in slight flexion 🔍 / 📺 / 🌳 / 📖
tags: msk

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submitted by ∗step_prep5(246)

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Young patient with atraumatic elbow pain holding extremity with elbow flexion and forearm in pronation with no obvious signs of injury, which is most consistent with a Radial head subluxation (Nursemaid’s elbow) which commonly occurs when young children have their arm pulled and the radial head gets trapped beneath the annular ligament
Key idea: Can be treated by hyperpronation of forearm or by supination of forearm with flexion of elbow

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submitted by ∗thajoker(21)

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Nurse maids elbow. X-ray not necessary initially as reduction is therapeutic and diagnostic

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submitted by ∗seagull(1933)

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The positioning of the arm on presentation is different that what I was taught. I thought the arm was held in extension. I might be wrong here.

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sassy_vulpix Same, I was confused between extended and flexed too. It says flexed in FA Step 1, but on one of the uworld questions during step 1 it had said extended. +

adong lol FA step 1 says "extended/slightly flexed" lol. i guess the more important part is the pronation +

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submitted by ∗jlbae(159)

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https://www.youtube.com/watch?v=tJb5rGOFiTY

Nursemaid's elbow reduction

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