Cedrick
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a 34 year old woman is brought to the emergency deparment after she collapsed when she returned from a nonstop flight from New Delhi to New york
she has smoked 1 pack of cigarretes daily for 16 years,she is sexually active and uses an oral contraceptive
her pulse is 125/min and blood pressure is 75/50 mmHg
physical examination shows jugular venous distention
the lungs are clear to auscultation
pulmonary artery catheterization shows a pulmonary systolic/diastolic arterial pressure of 50/25 mmhg{ N=15-30/3-12} and a pulmoanry artery wedge pressure of 5mmHg {N=8-16}
which of the following is the most likely cause of her pulmonary hypertension ??
a.-decreased cardiac output
b.-increased left atrial pressure
c.-increased left ventricular diastolic pressure
d.-increased pulmonary blood flow
e.-increased pulmonary venous resistence
f.-occlusion of left ventricular outflow tract
g.-occlusion of pulmonary arteries
h.-pericardial tamponade
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| robin082006
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Posts: 5,125
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G
Female, smoker, OCP--> risk of developing thrombosis--> G
a.-decreased cardiac output --> decreased pulmonary flow--> slight increase in pulmonary pressure
b.-increased left atrial pressure: left atrial pressure= pulmoanry artery wedge pressure , decrease in this case
c.-increased left ventricular diastolic pressure --no increase because of decrease in pulmoanry artery wedge pressure
d.-increased pulmonary blood flow --> decrease in pulmonary pressure (remember pressure = CO* resistance)
e.-increased pulmonary venous resistence--> increase in pulmoanry artery wedge pressure
f.-occlusion of left ventricular outflow tract--> increase in pulmoanry artery wedge pressure
g.-occlusion of pulmonary arteries: correct
h.-pericardial tamponade: signs of temponade
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| Cedrick
Forum Fanatic
Topics: 320
Posts: 1,928
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I think I now know what you are good at
thanks
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| nadiabarati
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agree with robin.
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| mjl1717
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Posts: 5,450
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great!
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