NBME form3 - friendlydoc

[ArchivalUser]

A 16-year-old boy with cystic fibrosis is brought to the physician because of shortness of breath and ankle edema over the past 2 days. He is below the 5th percentile for height and weight. His temperature is 37°C (98.6°F), blood pressure is 130/80 mm Hg, pulse is 82/min, and respirations are 25/min and labored. Examination shows mild perioral cyanosis, jugular venous distention, and bilateral pitting ankle edema. There is mild right upper quadrant tenderness. S1 is normal, and S2 is increased. Which of the following is the most likely cause of this patient's symptoms?
A ) Decreased systemic arterial pressure
B ) Increased plasma colloid oncotic pressure
C ) Increased pulmonary vascular resistance
D ) Portal hypertension
E ) Reduced left ventricular ejection fraction

[ArchivalUser]

it looks i'm going to have another second or third revise on my cardio and pulmo

I have no idea, but I'll pick C.

[ArchivalUser]

wats your answer?

[ArchivalUser]

i mean what's your answer

[ArchivalUser]

I did pick B just like you for the last quest...c

That's one is kind of tricky...I think CF leads to Cor pulmonale, with and increased vascular resistance=> C

[ArchivalUser]

i had a similar thought process with this question. yea it is tricky isnt it.

[ArchivalUser]

and can you imagine these tricky questions mixed into the easy questions in an 8 block exam . . . ouch . . . I'll just trust my gut feeling.