ATI RN
ATI Pathophysiology Exam 1
1. What property is found in clients with metastatic cancer?
- A. Tumors that are well encapsulated
- B. Tumors with slow, stable growth
- C. Cells that are genetically stable
- D. Cells invading local tissue and overrunning neighboring cells
Correct answer: D
Rationale: Metastatic cancer is characterized by cells that invade local tissue and overrun neighboring cells. Therefore, the correct answer is D. Choices A, B, and C are incorrect because metastatic cancer is associated with aggressive behavior where cells invade and spread to other parts of the body, rather than being well encapsulated, growing slowly, or being genetically stable.
2. Which pathophysiologic process causes the decreased glomerular filtration rate in a patient with acute glomerulonephritis?
- A. Decreased renal-induced constriction of the renal arteries
- B. Immune complex deposition, increased capillary permeability, and cellular proliferation
- C. Necrosis of 70% or more of the nephrons secondary to increased kidney interstitial hydrostatic pressure
- D. Scar tissue formation throughout the proximal convoluted tubule secondary to toxin-induced collagen synthesis
Correct answer: B
Rationale: The correct answer is B: Immune complex deposition, increased capillary permeability, and cellular proliferation. In acute glomerulonephritis, immune complexes deposit in the glomerulus, leading to inflammation, increased capillary permeability, and cellular proliferation. These processes collectively reduce the glomerular filtration rate. Choices A, C, and D do not accurately describe the pathophysiologic process in acute glomerulonephritis. Decreased renal-induced constriction of the renal arteries, necrosis of nephrons due to increased kidney interstitial hydrostatic pressure, and scar tissue formation in the proximal convoluted tubule are not the primary mechanisms responsible for the decreased filtration rate in this condition.
3. During surgery, the anesthesia personnel notice the client is having a steady rise in end-tidal carbon dioxide level. At this time, the nurse anesthetist begins to assess the client for malignant hyperthermia. The initial (priority) assessment for this disorder may include:
- A. measuring serum potassium levels.
- B. monitoring for muscle rigidity.
- C. evaluating renal function.
- D. checking arterial blood gases.
Correct answer: B
Rationale: The correct answer is B: monitoring for muscle rigidity. Muscle rigidity is a hallmark sign of malignant hyperthermia, a life-threatening condition triggered by certain anesthetics. Monitoring for this sign is critical in the early identification of the condition. Choices A, C, and D are not the initial priority assessments for malignant hyperthermia. Measuring serum potassium levels, evaluating renal function, and checking arterial blood gases are not specific initial assessments for malignant hyperthermia and would not aid in its early identification.
4. A patient with a history of breast cancer is prescribed tamoxifen (Nolvadex). What critical information should the nurse include in the patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. Tamoxifen may cause weight gain, so patients should monitor their diet.
- C. Tamoxifen may decrease the risk of osteoporosis, so patients should ensure adequate calcium intake.
- D. Tamoxifen may cause hot flashes and other menopausal symptoms.
Correct answer: A
Rationale: Tamoxifen increases the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots and the importance of seeking immediate medical attention if they occur.
5. What assessment is the nurse performing when a client is asked to stand with feet together, eyes open, and hands by the sides, and then asked to close the eyes while the nurse observes for a full minute?
- A. Romberg test
- B. Weber test
- C. Rinne test
- D. Babinski test
Correct answer: A
Rationale: The correct answer is A, Romberg test. The Romberg test is used to assess balance and proprioception. During the test, the client is asked to stand with feet together, eyes open, and hands by the sides to observe their balance. Then, the client is asked to close their eyes while the nurse continues to observe for a full minute. This test helps in detecting any issues with proprioception and balance, which may be compromised in conditions affecting the nervous system. Choices B, C, and D are incorrect because the Weber test is used to assess hearing in each ear, the Rinne test is used to compare air and bone conduction of sound, and the Babinski test is used to assess the integrity of the corticospinal tract.
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