Repeated USMLE Questions Step 2 CK- Review- 25

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Q- Bamboo sign is a late finding of which one of the following osteoarthropathies?

A- Ankylosing spondylitis

B- Psoriatic arthritis

C- Reactive arthritis

D- Rheumatoid arthritis

A- Ankylosing spondylitis- The tissues that connect tendons and ligaments to bones become inflamed. Repeated inflammation and repair can lead to scarring and new bone formation showing as bamboo spine.



Q- Treatment with prothrombin complex concentrate (PCC) is recommended in which one of the following conditions?

A- Factor VII deficiency

B- Hemophilia A

C- Hemophilia B

D- Von Willebrand disease

A- Factor VII deficiency- PCC contains factors II, VII, IX and X and proteins C and S. It doesn’t have VIII so, it is not used in hemophilia or VWD.



Q- tPA can be used up to 4.5 hours after onset of the stroke for which one of the following patients?

A- The patient has NIH stroke scale of 22

B- The patient is 56 years old

C- The patient is 82 years old

D- The patient is diabetic and had a previous stroke

B- The patient is 56 years old- tPA is used up to 4.5 hours after the onset of stroke if the patient is younger than 80 years old, HIN stroke scale less than 25 and if not a diabetic with a previous stroke.



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