Which of the following is a primary immunodeficiency disorder?
Human immunodeficiency virus (HIV) infection
Common variable immunodeficiency (CVID)
Rheumatoid arthritis
Diabetes mellitus
The Correct Answer is B
Explanation: The correct answer is b. Common variable immunodeficiency (CVID). CVID is an example of a primary immunodeficiency disorder, which is typically caused by genetic mutations affecting the immune system's development and function.
Incorrect choices:
a. Human immunodeficiency virus (HIV) infection is an example of a secondary immunodeficiency disorder, which occurs due to an external factor, such as a viral infection, damaging the immune system.
c. Rheumatoid arthritis is an autoimmune disorder that affects the joints and is not classified as an immunodeficiency disorder.
d. Diabetes mellitus is a metabolic disorder involving insulin production and does not directly affect the immune system's function.
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Related Questions
Correct Answer is B
Explanation
Explanation: The correct answer is b. Recurrent skin infections. Recurrent skin infections are common clinical manifestations of immunodeficiency disorders in the elderly. The weakened immune system makes the skin more susceptible to infections and delays wound healing.
Incorrect choices:
a. Impaired balance and coordination are more commonly associated with neurological disorders or conditions affecting the musculoskeletal system, not immunodeficiency disorders.
c. Vision changes and blindness may be seen in conditions affecting the eyes or the visual system but are not typical clinical manifestations of immunodeficiency disorders.
d. Hearing loss is more commonly associated with conditions affecting the ears or the auditory system and is not a typical clinical manifestation of immunodeficiency disorders.
Correct Answer is C
Explanation
Explanation: The correct answer is c. Chronic diarrhea. Primary immunodeficiency disorders can affect the gastrointestinal system, leading to chronic diarrhea due to frequent infections and inflammation.
Incorrect choices:
a. Unexplained weight loss is not a specific symptom of primary immunodeficiency disorders. It may be seen in various other medical conditions, such as cancer or metabolic disorders.
b. Recurrent skin rashes are not a characteristic symptom of primary immunodeficiency disorders. Skin rashes may be caused by allergic reactions or dermatological conditions.
d. Difficulty falling asleep is not typically associated with primary immunodeficiency disorders. It may be related to sleep disorders or anxiety.
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