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MSN 570 Advanced Pathophysiology Final 2024
1. Anemia of chronic inflammation is generally classified as:
- A. Hypochromic and microcytic.
- B. Hypochromic and macrocytic.
- C. Normochromic and microcytic.
- D. Normochromic and normocytic.
Correct answer: D
Rationale: Anemia of chronic inflammation is typically characterized by normochromic (normal hemoglobin content) and normocytic (normal cell size) red blood cells. Choice A, hypochromic and microcytic, is incorrect because hypochromic refers to reduced hemoglobin content and microcytic refers to smaller than normal red blood cells, which are not typically seen in anemia of chronic inflammation. Choice B, hypochromic and macrocytic, is also incorrect as macrocytic refers to larger than normal red blood cells. Choice C, normochromic and microcytic, is incorrect because microcytic red blood cells are smaller than normal. Therefore, the correct classification for anemia of chronic inflammation is normochromic and normocytic.
2. What is the best way to prevent transmission of infectious agents?
- A. Take antibiotics daily
- B. Call the practitioner for herbal supplements
- C. Wash hands
- D. Avoid public areas as much as possible
Correct answer: C
Rationale: The correct answer is C: Wash hands. Washing hands is the most effective way to prevent the transmission of infectious agents. Antibiotics are not effective in preventing infections, and their overuse can lead to antibiotic resistance. Calling a practitioner for herbal supplements is not a primary method for preventing the transmission of infectious agents. Avoiding public areas entirely is impractical and not as effective as proper hand hygiene.
3. A female patient has been diagnosed with tuberculosis and begun multiple-drug therapy. The woman has asked the nurse why it is necessary for her to take several different drugs instead of one single drug. How should the nurse best respond to the patient's question?
- A. “Multiple drugs are used because doctors need to combat the TB bacteria from different angles to effectively treat the infection.”
- B. “The use of multiple drugs prevents the development of drug-resistant TB.”
- C. “Multiple drugs are prescribed because the final testing results for TB can take up to 3 weeks to confirm the most effective treatment.”
- D. “Multiple drugs are used in order to speed up the course of treatment.”
Correct answer: B
Rationale: The correct answer is B. Using multiple drugs in tuberculosis treatment helps prevent the development of drug-resistant TB. This approach is crucial because if the infection is not completely eradicated, the remaining bacteria may become resistant to the single drug used, making future treatments less effective. Choice A is incorrect because the use of multiple drugs is not due to uncertainty about which drug will work, but rather to address the bacteria from different angles. Choice C is incorrect as it misleads the patient about the reason for using multiple drugs. Choice D is also incorrect because the primary purpose of using multiple drugs is not to speed up treatment but to ensure effectiveness and prevent resistance.
4. A child's thymus gland is fully formed and proportionately larger than an adult's. Which of the following processes that contribute to immunity takes place in the thymus gland?
- A. Differentiation of B cells
- B. Production of natural killer (NK) cells
- C. Proliferation of T cells
- D. Filtration of antigens from the blood
Correct answer: C
Rationale: The correct answer is C: Proliferation of T cells. The thymus gland is responsible for the maturation and proliferation of T cells, which play a crucial role in adaptive immunity. Option A, differentiation of B cells, is incorrect because B cell maturation primarily occurs in the bone marrow. Option B, production of natural killer (NK) cells, is incorrect as NK cells are mainly produced in the bone marrow and lymph nodes. Option D, filtration of antigens from the blood, is incorrect as antigen filtration is not a primary function of the thymus gland.
5. While in an induced coma for 3 weeks, a badly burned firefighter awakens and thanks his son for singing Happy Birthday to him a week earlier. Which part of the brain is responsible for allowing him to hear and comprehend while comatose?
- A. Cerebellum
- B. Thalamus
- C. Temporal lobe
- D. Occipital lobe
Correct answer: C
Rationale: The temporal lobe is responsible for processing auditory information, allowing the patient to hear and comprehend while in a coma. The cerebellum is primarily associated with coordination and balance, not auditory processing. The thalamus serves as a relay station for sensory information but is not specifically responsible for auditory processing. The occipital lobe is mainly involved in processing visual information, not auditory functions.
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