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ATI Pathophysiology Test Bank
1. A staff member asks what leukocytosis means. How should the nurse respond? Leukocytosis can be defined as:
- A. A normal leukocyte count
- B. A high leukocyte count
- C. A low leukocyte count
- D. Another term for leukopenia
Correct answer: B
Rationale: Leukocytosis refers to an abnormally high leukocyte count. This condition is characterized by an elevated number of white blood cells in the bloodstream. Choice A is incorrect because leukocytosis does not refer to a normal leukocyte count. Choice C is incorrect as leukocytosis is not related to a low leukocyte count. Choice D is incorrect as leukopenia is the opposite of leukocytosis, indicating a low white blood cell count.
2. Thrombocytopenia is which disorder below?
- A. Increased blood coagulation
- B. Increased platelet production
- C. Increased number of infections
- D. Decreased platelet production
Correct answer: D
Rationale: Thrombocytopenia is a disorder characterized by a decreased platelet count or decreased platelet production, which affects blood clotting. Choice A, 'Increased blood coagulation,' is incorrect as thrombocytopenia is associated with decreased platelets, leading to impaired clotting. Choice B, 'Increased platelet production,' is incorrect as thrombocytopenia is characterized by a decrease in platelet production. Choice C, 'Increased number of infections,' is unrelated to thrombocytopenia, which primarily involves low platelet levels.
3. Which of the following is an example of a Type 1 hypersensitivity reaction?
- A. Anaphylaxis
- B. Indigestion
- C. Beta cell destruction
- D. ABO transfusion reaction
Correct answer: A
Rationale: Anaphylaxis is a classic example of a Type 1 hypersensitivity reaction. In Type 1 hypersensitivity, allergens trigger an immediate immune response mediated by IgE antibodies, leading to the release of histamine and other mediators. This reaction can result in symptoms ranging from mild itching and hives to severe conditions like anaphylaxis, which is a life-threatening emergency. The other options, such as indigestion (choice B), beta cell destruction (choice C), and ABO transfusion reaction (choice D), are not classified as Type 1 hypersensitivity reactions. Indigestion is typically related to gastrointestinal disturbances, beta cell destruction is associated with autoimmune conditions like type 1 diabetes, and ABO transfusion reaction involves antibodies targeting incompatible blood groups, which is a different immune mechanism compared to Type 1 hypersensitivity.
4. A nurse working in a busy orthopedic clinic is asked to perform the Tinel sign on a client having problems in her hand/wrist. In order to test Tinel sign, the nurse should give the client which direction?
- A. Stand tall, arms at your side, shut your eyes; place the tip of your index finger to your nose.
- B. Hold your wrist in complete flexion, keep it in this position for 60 seconds. How does your hand feel after placing it in a neutral position?
- C. I'm going to tap (percuss) over the median nerve in your wrist; tell me what sensation you feel while I am doing this. Does the sensation stay in the wrist or go anywhere else?
- D. I'm going to tap this tuning fork; place it on the side of your thumb, then tell me what you are feeling in your hand and wrist.
Correct answer: C
Rationale: The correct answer is C. The Tinel sign involves percussing over the median nerve in the wrist to test for carpal tunnel syndrome. Choice A is incorrect as it describes a different action unrelated to the Tinel sign. Choice B is also incorrect as it involves holding the wrist in flexion, which is not part of the Tinel sign assessment. Choice D is incorrect as it mentions using a tuning fork on the thumb, which is not the correct technique for assessing the Tinel sign.
5. 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.
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