Which of the following types of immunity is acquired through a varicella vaccination?
Artificial passive
Artificial active
Natural active
Natural passive
The Correct Answer is B
a: Artificial passive - Artificial passive immunity involves the transfer of pre-made antibodies from one individual to another, such as through injection of immune serum or administration of antibodies produced in a laboratory.
b. Artificial active: Artificial active immunity is acquired through vaccination, where a person's immune system is exposed to a weakened or inactive form of a pathogen, such as the varicella (chickenpox) virus, to stimulate an immune response and the production of antibodies.
c: Natural active - Natural active immunity occurs when a person is exposed to a pathogen in the environment and develops an immune response, such as contracting and recovering from a disease like chickenpox.
d: Natural passive - Natural passive immunity involves the transfer of antibodies from a mother to her baby, such as through breastfeeding or placental transfer of antibodies during pregnancy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a. Aortic: This valve has three cusps and is open during systole to allow blood flow from the left ventricle into the aorta.
b. Mitral: This valve, also known as the bicuspid valve, has two leaflets and closes during systole to prevent backflow of blood into the left atrium.
c. Pulmonic: This valve has three cusps and is open during systole to allow blood flow from the right ventricle into the pulmonary artery.
d. Tricuspid: This valve has three leaflets and closes during systole to prevent backflow of blood into the right atrium.
Correct Answer is D
Explanation
a. Activation of plasmin: Plasmin is involved in breaking down blood clots, not in their formation. It is part of the fibrinolytic system.
b. Activation of heparin: Heparin is an anticoagulant that prevents clotting; it is not required for blood clotting.
c. Adequate levels of potassium: Potassium is important for cellular function but does not play a direct role in blood clotting.
d. Adequate levels of calcium: Calcium ions are essential for various steps in the blood clotting cascade, including the activation of certain clotting factors.
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