ATI RN
ATI Gastrointestinal System Test
1. Hepatic encephalopathy develops when the blood level of which substance increases?
- A. Ammonia
- B. Amylase
- C. Calcium
- D. Potassium
Correct answer: A
Rationale: Hepatic encephalopathy develops when the blood level of ammonia increases.
2. What are the expected symptoms in a patient with a thrombotic stroke?
- A. Gradual loss of function on one side of the body
- B. Sudden loss of consciousness
- C. Severe headache and confusion
- D. Loss of sensation in the affected limb
Correct answer: A
Rationale: A thrombotic stroke typically presents with a gradual loss of function on one side of the body. This gradual onset distinguishes it from a hemorrhagic stroke, which often manifests with sudden and severe symptoms like loss of consciousness (choice B), severe headache and confusion (choice C), or loss of sensation in the affected limb (choice D). Therefore, choices B, C, and D are not typically associated with thrombotic strokes.
3. The child is admitted to the hospital unit newly diagnosed with retinoblastoma. Which clinical manifestation does the nurse anticipate upon assessment?
- A. A white reflex
- B. Blue-tinged sclerae
- C. A red reflex
- D. Yellow-tinged sclerae
Correct answer: A
Rationale: The correct answer is A: A white reflex. The 'white reflex' or leukocoria is a common sign of retinoblastoma. It occurs when the light reflects off the tumor in the eye, giving the pupil a white appearance instead of the normal red reflex. Blue-tinged sclerae (choice B) and yellow-tinged sclerae (choice D) are not typical manifestations of retinoblastoma. A red reflex (choice C) is the normal reflection seen in the eye when light is shone on it and is not associated with retinoblastoma.
4. A healthcare provider is reviewing the laboratory report of a client who is receiving heparin therapy for a deep vein thrombosis. Which of the following lab values indicates a therapeutic response to the therapy?
- A. PT of 12 seconds
- B. aPTT of 70 seconds
- C. Platelets of 150,000/mm3
- D. INR of 1.5
Correct answer: B
Rationale: An aPTT of 70 seconds is within the therapeutic range for a client receiving heparin therapy. The activated partial thromboplastin time (aPTT) is the most sensitive test to monitor heparin therapy. A therapeutic aPTT range for a client receiving heparin is usually 1.5 to 2.5 times the control value. Choices A, C, and D are not indicators of a therapeutic response to heparin therapy. PT measures the extrinsic pathway of coagulation and is not specific to monitoring heparin therapy. Platelet count is important to monitor for heparin-induced thrombocytopenia, but it does not indicate the therapeutic response to heparin therapy. INR is used to monitor warfarin therapy, not heparin therapy.
5. A nurse is reviewing the laboratory results of a client who is at 28 weeks of gestation. Which of the following laboratory values should the nurse report to the provider?
- A. Hgb 10 g/dL
- B. Platelets 300,000/mm³
- C. WBC count 12,000/mm³
- D. BUN 18 mg/dL
Correct answer: A
Rationale: The correct answer is A: Hgb 10 g/dL. A hemoglobin level of 10 g/dL is below the normal range for a pregnant client, indicating possible anemia, which is crucial to report during pregnancy to prevent complications for both the mother and the baby. Platelets, WBC count, and BUN levels within the listed values are generally within normal ranges for a pregnant individual at 28 weeks of gestation. Platelets play a role in blood clotting, WBC count helps in fighting infections, and BUN measures kidney function, all of which are typically expected to be within normal limits during pregnancy.
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