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how does emphysema reduce the amount of oxygen which diffuses into the blood

A 36-year-old member asked:
Dr. Rada Ivanov
30 years experience Pulmonary Critical Care
See below: In emphysema, the alveoli are destroyed and that is the place where the exchange of oxygen and carbon dioxide is supposed to occur. Malfunctioning alv ... Read More
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Dr. Hesham Hassaballa
21 years experience Pulmonary Critical Care
From Destruction: The destruction in the lung tissue from emphysema makes the oxygen harder to cross into the blood because there is less tissue surface left. With ... Read More
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A 33-year-old member asked:
Dr. Arnon Rubin
23 years experience Internal Medicine
Destroys the lung: Emphysema causes destruction of lung tissue. The blood vessles in the lung get destroyed in the lung. These vessles carry the blood in the lung to pic ... Read More
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Dr. Hesham Hassaballa
21 years experience Pulmonary Critical Care
Destruction of lung: Emphysema is the destruction of lung tissue, most often from smoking. When this happens, the amount of lung available to participate in the exchange o ... Read More
A 37-year-old member asked:
Dr. Jay Park
Dr. Jay Park answered
49 years experience Pediatrics
See below: I assume you are referring to "children with bpd." oxygen saturation below 90% while awake would require further evaluation and change in treatment m ... Read More
Dr. Rada Ivanov
30 years experience Pulmonary Critical Care
See below: Children usually don't have copd, this is a disease of the adult. Children may have congenital lung diseases but the physiology of those is not the sa ... Read More
A 67-year-old male asked:
Dr. Corey Clay
9 years experience Allergy and Immunology
Discuss: This may be moderate to severe obstructive lung disease or an acute exacerbation if the underlying disease is more mild (maybe due to infection). See ... Read More
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A 46-year-old female asked:
Dr. Robert Killian
27 years experience General Practice
Unanswerable: There are just too many unknowns here. I am very sorry to hear of your mother's troubles, but it sounds like she is in the right place and getting the ... Read More
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A 38-year-old male asked:
Dr. Amrita Dosanjh
35 years experience Pediatrics and Pediatric Pulmonology
Consider DVT: An ultrasound of your lower extremities may reveal a thrombosis which may result in a pulmonary embolism. Discuss this as a possible cause with your p ... Read More
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A 40-year-old female asked:
Dr. Klaus d Lessnau
35 years experience Pulmonary Critical Care
Yes: And then you are lucky! get an ambulatory pulse oximetry monitor for $20 to know for sure that your oxygen is above 90%. Severe emphysema means ... Read More
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A 25-year-old member asked:
Dr. Aaron Milstone
26 years experience Pulmonology
Yes and No: Patients with emphysema are at some risk for developing high carbon dioxide levels (hypercapnea) if given high doses of oxygen. The oxygen will displ ... Read More
A 47-year-old member asked:
Dr. Aaron Milstone
26 years experience Pulmonology
Can Be: Some patients can get a rise in their carbon dioxide levels with high doses of oxygen - this doesn't happen in every patient but if it does it can be ... Read More
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A 47-year-old member asked:
Dr. Payam Mehranpour
22 years experience Cardiology
Oxygen: If emphysema is severe enough to require oxygen supplementation, using oxygen may lead to less shortness of breath and increased energy levels.

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