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ATI Learning System PN Medical Surgical Final Quizlet
1. A patient with heart failure is prescribed digoxin. What is the most important instruction the nurse should provide?
- A. Take an extra dose if you miss one.
- B. Avoid high-potassium foods.
- C. Report any visual disturbances.
- D. Stop taking the medication if your pulse is normal.
Correct answer: C
Rationale: The correct answer is C: 'Report any visual disturbances.' Patients taking digoxin should be instructed to report any visual disturbances, as this can be a sign of digoxin toxicity. Visual disturbances like changes in color vision, blurred vision, or seeing halos around lights can indicate an overdose of digoxin. Choices A, B, and D are incorrect. Instructing a patient to take an extra dose if they miss one can lead to overdose. Avoiding high-potassium foods is important for patients on potassium-sparing diuretics, not digoxin. Stopping the medication if the pulse is normal is incorrect, as the pulse rate alone is not an indicator of digoxin effectiveness or toxicity.
2. A patient with tuberculosis is started on rifampin. What advice should the nurse provide?
- A. Limit intake of green leafy vegetables.
- B. Expect orange-red discoloration of body fluids.
- C. Avoid exposure to sunlight.
- D. Take the medication with antacids.
Correct answer: B
Rationale: The correct advice for a patient starting rifampin is to expect orange-red discoloration of body fluids. Rifampin can cause harmless orange-red discoloration of body fluids, which may include urine, sweat, saliva, and tears. It is important for the patient to be aware of this side effect as it can stain clothing and contact lenses. Limiting the intake of green leafy vegetables is not necessary with rifampin. Avoiding exposure to sunlight is more commonly associated with other medications like tetracyclines, not rifampin. Taking rifampin with antacids is not recommended as antacids can reduce the absorption of rifampin, decreasing its effectiveness in treating tuberculosis.
3. A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). Heparin affects the intrinsic pathway of the coagulation cascade, which is reflected by changes in the PTT. Monitoring the PTT helps ensure that the patient's blood is within the desired therapeutic range and prevents complications related to clotting or bleeding. Prothrombin time (PT) primarily assesses the extrinsic pathway and is not as sensitive to heparin therapy. Bleeding time and platelet count are not specific tests for monitoring the effectiveness of heparin therapy in DVT.
4. Why is a low-protein diet recommended for a patient with renal failure?
- A. To prevent fluid overload
- B. To reduce nitrogenous waste
- C. To maintain electrolyte balance
- D. To prevent hyperglycemia
Correct answer: B
Rationale: A low-protein diet is crucial for patients with renal failure to reduce the generation of nitrogenous waste products like urea and creatinine, which the compromised kidneys struggle to eliminate effectively. By limiting protein intake, the production of these waste products is decreased, lessening the burden on the kidneys and helping to manage the progression of renal failure. Choices A, C, and D are incorrect because a low-protein diet primarily aims to reduce the workload on the kidneys by decreasing the production of nitrogenous waste, not to prevent fluid overload, maintain electrolyte balance, or prevent hyperglycemia.
5. A patient with gout is prescribed allopurinol. What should the nurse include in the patient teaching?
- A. Take the medication with food.
- B. Increase intake of high-purine foods.
- C. Limit fluid intake to 1 liter per day.
- D. Expect immediate pain relief.
Correct answer: A
Rationale: When educating a patient prescribed allopurinol for gout, the nurse should emphasize taking the medication with food to reduce the risk of gastrointestinal upset. It is important to instruct the patient to maintain adequate hydration by consuming plenty of fluids, preferably water, to help prevent kidney stone formation and facilitate the drug's effectiveness. Allopurinol does not provide immediate pain relief but rather works to lower uric acid levels over time, reducing the frequency of gout attacks. Choices B and C are incorrect as increasing high-purine foods can exacerbate gout symptoms, and limiting fluid intake to 1 liter per day is not recommended for gout patients who should maintain good hydration. Choice D is incorrect because allopurinol does not offer immediate pain relief.
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