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Localized hypoxia occurs in rheumatoid arthritis because of:

A.

Joint immobilization

B.

Vasculitis

C.

Blockage of veins resulting in decrease oxygen delivery

D.

Release of synovial enzymes

Answer and Explanation

The Correct Answer is B

A. Joint immobilization may contribute to overall dysfunction but is not the primary cause of localized hypoxia in rheumatoid arthritis.

B. Vasculitis, or inflammation of blood vessels, can lead to localized hypoxia by reducing blood flow to affected areas, contributing to tissue damage in rheumatoid arthritis.

C. While blockage of veins can contribute to localized hypoxia, it is more related to vasculitis in this condition.

D. The release of synovial enzymes may contribute to joint damage but does not directly cause localized hypoxia.


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Related Questions

Correct Answer is B

Explanation

A. The anterior and posterior trunk account for 36% total (18% each), and both arms (9% each) account for an additional 18%, totaling 54%.

B. The calculation for the burn surface area would be 36% (trunk) + 18% (both arms) = 54%, which is correct.

C. 63% is too high based on the rule of nines calculations.

D. 44% underestimates the total burn surface area considering both trunk and arms.

Correct Answer is D

Explanation

A. Diarrhea, stomach cramping, and vomiting are more typical of gastrointestinal viruses rather than influenza.

B. Nasal congestion, sneezing, and watery eyes are more characteristic of allergies or common colds than of influenza.

C. While headache, sinus pressure, and fever can occur with influenza, they do not encompass the hallmark respiratory symptoms.

D. Body aches, cough, and sore throat are classic symptoms of influenza, making this the most characteristic set.

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