Which of the following will result in active immunity?
None of the answers are correct
Antiserum administration
Vaccination
Breast feeding
The Correct Answer is C
A. None of the answers are correct is incorrect because one of the options does result in active immunity.
B. Antiserum administration involves the transfer of antibodies (passive immunity), not the activation of the immune system to produce its own antibodies.
C. Vaccination induces active immunity by stimulating the immune system to produce its own antibodies and memory cells in response to a weakened or inactivated pathogen (or its components). This prepares the body for future exposure to the actual pathogen.
D. Breast feeding provides passive immunity because the infant receives pre-formed antibodies from the mother through breast milk, but does not stimulate the infant's immune system to produce its own.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Chyle is a milky fluid formed by the combination of fat globules and lymph. It is absorbed by lacteals (specialized lymphatic vessels) in the small intestine and transports dietary fats to the lymphatic system.
B. Plasma is the liquid component of blood, not a mixture of fat and lymph.
C. Lymph is the clear fluid that circulates in the lymphatic system, but it is not specifically mixed with fats like chyle.
D. Lacteal refers to the lymphatic vessels in the small intestine that absorb fats, but it is not the name of the fluid itself. The fluid is called chyle.
Correct Answer is A
Explanation
A. An antigen is any foreign substance (such as bacteria, viruses, or toxins) that triggers an immune response in the body. The immune system recognizes and responds to antigens, typically by producing antibodies.
B. Inflammation is a response of the body to injury or infection, characterized by redness, heat, swelling, and pain, but it is not a foreign substance itself.
C. An allergen is a specific type of antigen that causes an allergic reaction. While all allergens are antigens, not all antigens are allergens.
D. A lymphocyte is a type of white blood cell involved in the immune response, but it is not a foreign substance. Lymphocytes help recognize and respond to antigens.
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