What is the primary result of anemia?
Depressed hematopoietic system.
Presence of abnormal hemoglobin.
Decreased oxygen-carrying capacity of blood.
Increased blood viscosity.
The Correct Answer is C
The correct answer is choice C. Decreased oxygen-carrying capacity of blood.
Choice A rationale:
Anemia does not primarily result in a depressed hematopoietic system. In fact, anemia often occurs due to various factors that affect red blood cell production or lifespan. The hematopoietic system can be overactive in response to anemia, attempting to compensate for the reduced oxygen-carrying capacity of the blood.
Choice B rationale:
While some anemias may involve the presence of abnormal hemoglobin (e.g., sickle cell anemia), this is not the primary result of anemia. The primary consequence of anemia is a decreased ability of the blood to carry oxygen to the body's tissues.
Choice C rationale:
The correct choice. Anemia leads to a decreased oxygen-carrying capacity of the blood. Hemoglobin, the protein in red blood cells responsible for carrying oxygen, is reduced in quantity or function in various types of anemia. This results in inadequate oxygen delivery to tissues, potentially causing symptoms such as fatigue, weakness, pallor, and shortness of breath.
Choice D rationale:
Increased blood viscosity is not a primary result of anemia. Anemia tends to reduce blood viscosity because there are fewer red blood cells and less hemoglobin present, which makes the blood more fluid and less viscous. Increased blood viscosity is more commonly associated with conditions like polycythemia, where there is an excess of red blood cells.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A: Rotavirus.
Choice A rationale:
Rotavirus is a viral pathogen that frequently causes acute diarrhea in young children. It is highly contagious and is responsible for a significant portion of severe diarrhea cases worldwide. Rotavirus infections are most common in infants and young children, and they can lead to dehydration, especially in developing countries where access to clean water and proper sanitation might be limited.
Choice B rationale:
Salmonella organisms can cause food poisoning and gastrointestinal infections that lead to diarrhea. However, they are more commonly associated with bacterial infections rather than viral-induced acute diarrhea.
Choice C rationale:
Shigella organisms are also bacterial pathogens that cause diarrhea, specifically bacillary dysentery. While they can cause severe diarrhea, they are not the viral pathogen typically responsible for acute diarrhea in young children.
Choice D rationale:
Giardia organisms are parasites that can cause gastrointestinal infections leading to diarrhea. However, they are not viruses, and they are less commonly associated with acute diarrhea in children compared to rotavirus.
Correct Answer is C
Explanation
The correct answer is choice C. After taking antibiotics for 24 hours.
Choice A rationale:
Returning to school if no complications develop is not a sufficient guideline for allowing a child with streptococcal pharyngitis to return to school. Streptococcal pharyngitis (strep throat) is highly contagious, and children should be treated with antibiotics to prevent the spread of the infection.
Choice B rationale:
Waiting until the sore throat is better is not a specific enough criterion for returning to school. While the resolution of symptoms is an important factor, it's crucial to ensure that the child has also been on antibiotics for an appropriate duration to reduce the risk of spreading the infection to others.
Choice C rationale:
The recommended guideline is to return to school after taking antibiotics for 24 hours. This timeframe helps ensure that the child's contagiousness is significantly reduced, minimizing the risk of transmitting the infection to classmates and school staff.
Choice D rationale:
Waiting for three days after taking antibiotics is not as precise as waiting for 24 hours. With proper antibiotic treatment, the child's contagiousness decreases rapidly, and waiting for three days might be unnecessary and could potentially result in more missed school days than needed.
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