USMLE Forum Archives - USMLE Step 3 - IM3
IM3
bingousmle - 06-20-10 05:53
A 30-year-old man is brought to the ED by emergency medical service (EMS) in respiratory distress. His initial vitals include a HR of 109 beats per minute, a BP of 180/90 mm Hg, and an RR of 20 breaths per minute with an oxygen saturation of 92% on room air. A chest x-ray shows a bilateral diffuse infiltrative process. A subsequent toxicologic screen is positive.
Which of the following agents is most likely responsible for this patient’s presentation?
a. Cannabis
b. Opioid
c. Crack cocaine
d. Methamphetamine
e. Ethano
bingousmle - 06-20-10 05:53
A 30-year-old man is brought to the ED by emergency medical service (EMS) in respiratory distress. His initial vitals include a HR of 109 beats per minute, a BP of 180/90 mm Hg, and an RR of 20 breaths per minute with an oxygen saturation of 92% on room air. A chest x-ray shows a bilateral diffuse infiltrative process. A subsequent toxicologic screen is positive.
Which of the following agents is most likely responsible for this patient’s presentation?
a. Cannabis
b. Opioid
c. Crack cocaine
d. Methamphetamine
e. Ethano
The correct answer and explanation will be available after you answer.
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#2
Re: IM3
bingousmle - 06-20-10 06:28 My answer is: c.
crack cocaine when, smoked through a pipe, produces a highly lipid-soluble vapor that allows for rapid transport from the lungs to the brain for a quicker high compared to cocaine that is snorted or injected.
#3
Re: IM3 babbu5508 - 06-20-10 14:05 My answer is: c.
Crack cocaine is the freebase form of cocaine that can be smoked....and produces a bilateral diffuse infiltrative process.
#14
Re: IM3 mockingbird - 06-30-11 12:47 My answer is: b.
I think
opioid can cause respiratory depression but hypotension because of hypovolumia
cocaine can cause respiratory depression and hypertension, leading to bleeding in the brain.
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