#1
Which of the following is a common symptom of anemia?
Pale skin
ExplanationPale skin is a common symptom of anemia due to reduced oxygen-carrying capacity in the blood.
#2
What is the primary function of vitamin B12 in the body?
Facilitates nerve function and DNA synthesis
ExplanationVitamin B12 plays a key role in facilitating nerve function and DNA synthesis within the body.
#3
What is the most common initial symptom of vitamin B12 deficiency?
Fatigue
ExplanationFatigue is often the most common initial symptom of vitamin B12 deficiency.
#4
What is the medical term for a low red blood cell count?
Anemia
ExplanationThe medical term for a low red blood cell count is anemia.
#5
Which type of anemia is characterized by a deficiency of vitamin B12?
Pernicious anemia
ExplanationPernicious anemia is characterized by a deficiency of vitamin B12, often due to impaired absorption.
#6
What is the Schilling test used for in diagnosing anemia?
To evaluate vitamin B12 absorption
ExplanationThe Schilling test is used to assess the absorption of vitamin B12 in diagnosing anemia.
#7
What type of anemia is caused by a lack of intrinsic factor?
Pernicious anemia
ExplanationPernicious anemia results from a lack of intrinsic factor, hindering vitamin B12 absorption.
#8
Which of the following conditions can lead to vitamin B12 deficiency?
All of the above
ExplanationVarious conditions, including dietary choices, malabsorption, and certain medical conditions, can contribute to vitamin B12 deficiency.
#9
Which test is commonly used to measure vitamin B12 levels in the blood?
Serum vitamin B12 assay
ExplanationThe serum vitamin B12 assay is a common test to measure vitamin B12 levels in the blood.
#10
Which of the following foods is a good source of vitamin B12?
Eggs
ExplanationEggs are a good dietary source of vitamin B12, essential for various physiological functions.
#11
What neurological symptom is associated with severe vitamin B12 deficiency?
Paresthesia
ExplanationSevere vitamin B12 deficiency can lead to neurological symptoms such as paresthesia (tingling or numbness).
#12
In what part of the digestive system does vitamin B12 absorption primarily occur?
Small intestine
ExplanationVitamin B12 absorption primarily occurs in the small intestine.
#13
Which of the following is NOT a potential complication of untreated pernicious anemia?
Osteoporosis
ExplanationOsteoporosis is not a potential complication of untreated pernicious anemia; other complications include neurological issues and increased cardiovascular risks.
#14
Which of the following conditions can mimic the symptoms of vitamin B12 deficiency?
All of the above
ExplanationVarious conditions, including folate deficiency, iron deficiency, and certain neurological disorders, can mimic the symptoms of vitamin B12 deficiency.