ATI RN
Pathophysiology Practice Exam
1. A healthcare professional is assessing a client with suspected myasthenia gravis. Which symptom would the healthcare professional expect to find?
- A. Muscle atrophy
- B. Facial weakness
- C. Ptosis and diplopia
- D. Increased muscle tone
Correct answer: C
Rationale: Ptosis (drooping eyelid) and diplopia (double vision) are classic symptoms of myasthenia gravis. Muscle atrophy (Choice A) is not a typical early manifestation of myasthenia gravis. While facial weakness (Choice B) can occur, it is not as specific as ptosis and diplopia. Increased muscle tone (Choice D) is more indicative of conditions like spasticity, not myasthenia gravis.
2. What does a client's symptoms of headache, vomiting, blurred vision, and loss of consciousness following a concussion indicate?
- A. Increased intracranial pressure
- B. Lower extremity compartment syndrome
- C. Consuming too much food at once
- D. Improved kidney function
Correct answer: A
Rationale: The symptoms of headache, vomiting, blurred vision, and loss of consciousness following a concussion are indicative of increased intracranial pressure. These symptoms suggest a serious condition that can occur after head trauma, requiring immediate medical attention. Lower extremity compartment syndrome presents with symptoms related to pressure build-up in the muscles of the legs, not the head. Consuming too much food at once does not manifest with these neurological symptoms. Improved kidney function would not present with symptoms such as headache, vomiting, blurred vision, and loss of consciousness.
3. A client has been admitted to the hospital with symptoms of Guillain-Barré syndrome. Which aspect of the client's condition would require priority monitoring?
- A. Monitoring oxygen saturation levels
- B. Monitoring for signs of respiratory compromise
- C. Monitoring for changes in consciousness
- D. Monitoring blood pressure closely
Correct answer: B
Rationale: In Guillain-Barré syndrome, respiratory muscle weakness can lead to respiratory compromise, making it crucial to prioritize monitoring for signs of respiratory distress. Monitoring oxygen saturation levels is important but is secondary to assessing for respiratory compromise in this condition. Changes in consciousness and monitoring blood pressure closely are not typically the priority in Guillain-Barré syndrome.
4. A patient's anemia is described as having erythrocytes that demonstrate anisocytosis. The nurse would recognize the erythrocytes as:
- A. Pale in color
- B. Present in various sizes
- C. Able to assume various shapes
- D. Live only a few days
Correct answer: B
Rationale: The correct answer is B: 'Present in various sizes.' Anisocytosis refers to erythrocytes that are present in various sizes, indicating an abnormality in the uniformity of red blood cell size. Choice A is incorrect because anisocytosis does not refer to the color of erythrocytes. Choice C is incorrect as anisocytosis does not involve the shape of erythrocytes. Choice D is incorrect as anisocytosis does not determine the lifespan of erythrocytes.
5. Which immunoglobulin presents the first challenge to the antigen?
- A. IgA
- B. IgG
- C. IgM
- D. IgE
Correct answer: C
Rationale: IgM is the first immunoglobulin to challenge the antigen during an immune response. IgM is the primary antibody produced during the initial or primary immune response. It is efficient in agglutination and complement activation, making it crucial in the early stages of defense. IgA is mainly found in mucosal areas and secretions. IgG is the most abundant antibody in circulation and is involved in secondary immune responses. IgE is primarily associated with allergic reactions and parasitic infections. Therefore, IgM is the correct choice as it acts first during the immune response, while the other immunoglobulins have different roles and functions.
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