NBME Sample Questions

RSV is an RNA virus that enters the cell via a fusion protein –

(which is the target of the prophylactic monoclonal antibody drug Palivizumab)

Gram-positive rods in a diabetic foot wound (or a World War I soldier fighting in a

trench) means –

means Clostridium perfringens (the causative organism of gas gangrene).

Crepitus means gas in the tissues, which is produced as a byproduct of its highly

virulent alpha toxin

Crepitus –

means gas in the tissues, which is produced as a byproduct of its highly virulent

alpha toxin

Clostridium perfringens –

(the causative organism of gas gangrene).

The causative organism of a a necrotizing wound with a purplish. black discoloration –

most likely produces an alpha toxin virulence factor

With Von Willebrand's –

the only laboratory abnormality is increased bleeding time (literally you prick the

patient and see how long it takes them to stop bleeding).

von Willebrand diseaseFrequently, On Step, bleeding women have VWD. Bleeding

boys have hemophilia. –

is by far the most common inherited bleeding diathesis.

On the USMLE Step exam –

bleeding women have VWD. Bleeding boys have hemophilia.

Autism -like behaviour –

resist making eye contact and flapping hands

Fragile X Syndrome –

Autism-like behaviors (resist making eye contact and flapping hands) and large

testicles after puberty

Fragile X Syndrome caused by –

trinucleotide repeat expansion

RSV is an RNA virus that enters the cell –

via a fusion protein (which is the target of the prophylactic monoclonal antibody

drug Palivizumab).*