r753_2000
Forum Elite
Topics: 59
Posts: 255
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What disease does patient 1 and patient 2 have with these PFT indices?
PATIENT 1 PATIENT 2
TLC 87% 55%
RV 120% 90%
VC 90% 50%
FEV/FVC 80% 90%
FEF 50% 90%
DLCO PATIENT 1A:90 PATIENT 2A:90
PATIENT 1B:40 PATIENT 2B:40
Patient 1 has what disease?
Paitent 2 has what disease?
a) restrictive lung disease
b) obstructive lung disease
c) no disease
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| ELM
Forum Guru
Topics: 28
Posts: 936
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Patient 1-b
Patient 2-a
___________________
ELM
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| kmp
Forum Elite
Topics: 38
Posts: 311
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Patient 1-c
Patient 2-a
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| r753_2000
Forum Elite
Topics: 59
Posts: 255
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Elm, I do not know the answer to this one but, if the FEV/FVC of patient 1 is 80%, which is normal, how did gather that the patient has an obstructive disease? FEV/FVC is normal at 80%.
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| r753_2000
Forum Elite
Topics: 59
Posts: 255
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DLCO information:
DLCO is decreased in:
pulmonary vascular occulsive disease
interstitial lung disease
emphysema
pulmonary edema
DLCO is increased in:
hemorhage
LR cardiac shunt
Asthma
DLCO is normal in:
Asthma
chronic bronchitis
neuromuscular disease
chest wall deformities
I just read in Kaplan that interstial lung disease actually have a restrictive PFT and decreased DLCO.
So does patient 2 really have interstial lung disease? I'm really sorry i didn't put this in the option.
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| icecool
Forum Senior
Topics: 22
Posts: 113
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To r753_2000,
I am reading this q from Kap note (p275), my understanding of DLCO of pt 1a and 1b is that assume other parameters remain same, only DLCO change at two conditions i.e 90% and 40%, and ask what diseases could be under each of these condition, correct me if I am wrong. Since the answers are not given, we have to figure them out.
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