ATI RN
ATI Pathophysiology Quizlet
1. A group of nursing students and their professor are engaged in a service learning project and will be caring for patients in Haiti. What medication should be administered to prevent the development of malaria?
- A. Metronidazole (Flagyl)
- B. Oprelvekin (Neumega)
- C. Chloroquine phosphate (Aralen)
- D. Chloroprocaine hydrochloride (Nesacaine)
Correct answer: C
Rationale: The correct answer is Chloroquine phosphate (Aralen). Chloroquine is a medication used to prevent and treat malaria. It works by killing the malaria parasite in the red blood cells. Metronidazole (Flagyl) is an antibiotic used to treat various bacterial and parasitic infections, not malaria. Oprelvekin (Neumega) is a medication used to stimulate platelet production. Chloroprocaine hydrochloride (Nesacaine) is a local anesthetic used for epidural anesthesia. Therefore, Chloroquine phosphate is the appropriate medication for preventing malaria in this scenario.
2. An influenza outbreak has spread through a long-term care residence, affecting many of the residents with severe malaise, fever, and nausea and vomiting. In an effort to curb the outbreak, the nurse has liaised with a physician to see if residents may be candidates for treatment with what drug?
- A. Saquinavir mesylate
- B. Oseltamivir phosphate
- C. Lamivudine
- D. Ribavirin
Correct answer: B
Rationale: The correct answer is B: Oseltamivir phosphate. Oseltamivir is an antiviral medication used to treat influenza infections. It works by inhibiting the neuraminidase enzyme of the influenza virus, reducing the spread of the virus in the body. Saquinavir mesylate (choice A) is used in the treatment of HIV, not influenza. Lamivudine (choice C) is also an antiviral medication primarily used in the treatment of HIV and hepatitis B, not influenza. Ribavirin (choice D) is used to treat certain viral infections like hepatitis C, respiratory syncytial virus (RSV), and some viral hemorrhagic fevers, but it is not a first-line treatment for influenza.
3. Which of the following mediators of inflammation causes increased capillary permeability and pain?
- A. Serotonin
- B. Histamine
- C. Bradykinin
- D. Nitric oxide
Correct answer: C
Rationale: Bradykinin is the correct answer. It is a potent mediator of inflammation that causes increased capillary permeability and is responsible for the pain associated with inflammation. Serotonin and histamine are also mediators of inflammation, but they are not primarily known for increasing capillary permeability or inducing pain. Nitric oxide is involved in various physiological processes but is not a primary mediator of inflammation that causes increased capillary permeability and pain.
4. When assessing for potential signs and symptoms of cryptococcosis in a patient with HIV being treated with Amphotericin B, the nurse should prioritize what assessment?
- A. Neurological assessment
- B. Functional assessment
- C. Nutritional assessment
- D. Cardiac assessment
Correct answer: A
Rationale: In a patient with cryptococcosis and HIV, neurological assessment should be prioritized because cryptococcosis commonly affects the central nervous system, leading to symptoms such as headache, confusion, and altered mental status. This assessment is crucial in monitoring for any neurological complications and guiding appropriate interventions. Functional assessment focuses on the patient's ability to perform activities of daily living and is not directly associated with cryptococcosis. Nutritional assessment is important for overall health but is not the priority when assessing for cryptococcosis. Cardiac assessment is not a priority in cryptococcosis as the primary manifestations are related to the central nervous system.
5. During childhood, the thymus decreases in size, and this is referred to as ______ atrophy.
- A. Physiologic
- B. Pathologic
- C. Disuse
- D. Neurogenic
Correct answer: A
Rationale: The correct answer is A, 'Physiologic.' Physiologic atrophy is a normal part of development, like the reduction in thymus size during childhood. Pathologic atrophy (choice B) refers to tissue wasting due to disease, not a normal process like the reduction in thymus size. Disuse atrophy (choice C) results from a lack of physical activity or stimulation, which is not the case with thymus size reduction. Neurogenic atrophy (choice D) is caused by damage to or diseases of the nerves supplying the muscles, not related to the thymus size reduction seen in childhood.
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