ATI RN
ATI Pathophysiology Exam 2
1. After ingestion of cysts, how long does it take for the symptoms of giardiasis to develop?
- A. 12 to 24 hours
- B. 3 to 5 days
- C. 1 to 2 weeks
- D. 2 to 3 months
Correct answer: B
Rationale: Giardiasis symptoms typically develop 3 to 5 days after ingestion of the cysts. This timeframe aligns with the incubation period of the Giardia parasite. Choice A (12 to 24 hours) is too short for giardiasis to manifest. Choice C (1 to 2 weeks) and choice D (2 to 3 months) represent durations that are not consistent with the usual onset of symptoms in giardiasis.
2. Inflammatory exudates are a combination of several types. Which of the following exudates is composed of a large accumulation of leukocytes?
- A. Serous
- B. Purulent
- C. Fibrinous
- D. Hemorrhagic
Correct answer: B
Rationale: The correct answer is B: Purulent. Purulent exudates, or pus, consist primarily of leukocytes and dead cells, indicating a bacterial infection. Serous exudates contain a thin, watery fluid with few leukocytes. Fibrinous exudates are rich in fibrin and are commonly seen in severe inflammation. Hemorrhagic exudates contain red blood cells due to blood vessel damage.
3. Joseph, a 12-year-old child, complains to the school nurse about nausea and dizziness. While assessing the child, the nurse notices a black eye that looks like an injury. This is the third time in 1 month that the child has visited the nurse. Each time, the child provides vague explanations for various injuries. Which of the following is the school nurse’s priority intervention?
- A. Contact the child’s parents and ask about the child’s injuries.
- B. Encourage the child to be honest about the injuries.
- C. Question the teacher about the child's injuries.
- D. Report suspicion of abuse to the proper authorities.
Correct answer: D
Rationale: The school nurse's priority intervention in this situation is to report suspicion of abuse to the proper authorities. Given the pattern of unexplained injuries and vague explanations provided by the child, it raises significant concerns for possible abuse. Reporting to the appropriate authorities is crucial to ensure the child's safety and well-being. Contacting the child's parents (Choice A) may not be appropriate if abuse is suspected, as it could potentially put the child at further risk. Merely encouraging the child to be honest (Choice B) does not address the immediate safety concerns. Questioning the teacher (Choice C) is not the appropriate initial action when abuse is suspected; reporting to authorities should take precedence.
4. What should the nurse assess in a patient experiencing breakthrough bleeding while taking oral contraceptives?
- A. Adherence to the medication schedule
- B. The possibility of pregnancy
- C. The need for an increased dosage
- D. The effectiveness of the current oral contraceptive
Correct answer: A
Rationale: When a patient on oral contraceptives experiences breakthrough bleeding, the nurse should assess the patient's adherence to the medication schedule. Breakthrough bleeding is often a sign of non-adherence, potentially reducing the effectiveness of the contraceptives. Assessing the adherence to the schedule helps in determining if the medication is being taken correctly. The possibility of pregnancy (choice B) is less likely if the patient has been taking the contraceptives as prescribed. Increasing the dosage (choice C) without assessing adherence first can lead to unnecessary medication adjustments. Evaluating the effectiveness of the current oral contraceptive (choice D) comes after assessing adherence to the schedule.
5. Which of the following chronic inflammatory skin disorders is characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation?
- A. Psoriasis
- B. Melanoma
- C. Atopic dermatitis
- D. Urticaria
Correct answer: A
Rationale: Psoriasis is the correct answer. Psoriasis is a chronic inflammatory skin disorder characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation. Choice B, Melanoma, is a type of skin cancer involving melanocytes, not characterized by the features mentioned. Choice C, Atopic dermatitis, is a different inflammatory skin condition associated with pruritus and eczematous lesions, not primarily characterized by angiogenesis. Choice D, Urticaria, is a skin condition characterized by hives and wheals due to histamine release, not typically involving the features mentioned in the question.
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