Which of the following best describes an infection?
The failure of the body to function normally
A diseased section of the body
The invasion of the body by a pathogen and the subsequent symptoms in response to the invasion
The invasion of the body by a disease
The Correct Answer is C
A. The failure of the body to function normally
This is too general and applies to any illness, not specifically infection.
B. A diseased section of the body
This is vague and doesn’t identify causative factors like pathogens.
C. The invasion of the body by a pathogen and the subsequent symptoms in response to the invasion
This accurately defines infection as a host response to pathogen invasion.
D. The invasion of the body by a disease
Diseases don’t invade; pathogens do. This option is not scientifically accurate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Movement of blood through the body:
This is the function of the cardiovascular system, not the lymphatic system.
B. Decreases the spread of disease:
The lymphatic system helps trap and destroy pathogens through lymph nodes and the immune response, reducing the spread of infection.
C. Control hormone levels:
Hormone levels are regulated by the endocrine system.
D. Control electrolyte levels:
Electrolyte balance is primarily maintained by the kidneys and endocrine organs like the adrenal glands.
Correct Answer is B
Explanation
A. Potassium
Potassium relates to fluid/electrolyte balance, not directly to infection.
B. WBC count
An elevated white blood cell (WBC) count indicates the body is mounting an immune response, suggesting infection.
C. BUN
BUN measures kidney function and hydration status, not infection.
D. RBC count
RBCs relate to oxygen-carrying capacity (anemia, blood loss), not infection.
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