Which statement is TRUE concerning bacteria?
Cause mycotic infections
Include mold and yeast
Are not part of the normal flora of the intestines
Include cocci, bacilli, and curved rods
The Correct Answer is D
A. Cause mycotic infections:
Mycotic (fungal) infections are caused by fungi, not bacteria.
B. Include mold and yeast:
Molds and yeasts are fungi, not bacteria.
C. Are not part of the normal flora of the intestines:
Bacteria are a significant part of the normal intestinal flora (e.g., E. coli, Bacteroides).
D. Include cocci, bacilli, and curved rods:
Bacteria are classified by shape: cocci (spherical), bacilli (rod-shaped), and curved rods (e.g., Vibrio cholerae).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Chemical barriers: tears, saliva, stomach acid
These are first-line defenses that kill or inhibit pathogens before entry.
B. Signs of inflammation: redness, heat, swelling, pain
These are the classic cardinal signs of inflammation.
C. Mechanical barriers: skin, mucous membrane
These form physical barriers to pathogen entry.
D. Nonspecific immunity: inflammation, natural killer cells, fever, T cells
T cells are part of specific (adaptive) immunity, not nonspecific immunity.
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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