ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. 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.
2. The patient has a calcium level of 12.1 mg/dL. Which nursing action should the nurse include on the care plan?
- A. Maintain the patient on bed rest.
- B. Auscultate lung sounds every 4 hours.
- C. Monitor for Trousseau's and Chvostek's signs.
- D. Encourage fluid intake up to 4000 mL every day.
Correct answer: D
Rationale: The correct action for the nurse to include on the care plan for a patient with a calcium level of 12.1 mg/dL is to encourage fluid intake up to 4000 mL every day. This is essential to decrease the risk for renal calculi associated with hypercalcemia. While bed rest is not necessary, ambulation is encouraged to help decrease the loss of calcium from the bone. Monitoring for Trousseau's and Chvostek's signs is more relevant when hypocalcemia is suspected. Auscultating lung sounds every shift is a routine assessment, not required every 4 hours unless there is a specific respiratory concern.
3. A 65-year-old female client arrives in the emergency department with shortness of breath and chest pain. The nurse accidentally administers 10 mg of morphine sulfate instead of the prescribed 4 mg. Later, the client's respiratory rate is 10 breaths/minute, oxygen saturation is 98%, and she states her pain has subsided. What is the legal status of the nurse?
- A. The nurse is guilty of negligence and will be sued.
- B. The client would not be able to prove malpractice in court.
- C. The nurse is protected by the Good Samaritan Act.
- D. The healthcare provider should have given the morphine sulfate dose.
Correct answer: B
Rationale: The correct answer is B because, in this scenario, the client would not be able to prove malpractice in court. Despite the nurse administering a higher dose of morphine than prescribed, the client's respiratory rate, oxygen saturation, and pain relief indicate that no harm resulted from the error. Therefore, the client would not have legal grounds to pursue a malpractice case against the nurse.
4. A patient with chronic pain is prescribed a fentanyl patch. What is the most important instruction for the nurse to provide?
- A. Apply the patch to a different site each time.
- B. Change the patch every 72 hours.
- C. Avoid using additional heating pads over the patch.
- D. Remove the patch before showering.
Correct answer: B
Rationale: The most important instruction for the nurse to provide to a patient prescribed a fentanyl patch is to change the patch every 72 hours. This ensures consistent pain control and prevents complications. It is crucial to rotate the application sites to prevent skin irritation or reactions. Using additional heating pads over the patch should be avoided as it can increase the absorption of the medication, leading to overdose or adverse effects. Removing the patch before showering is not necessary as long as the patch is securely in place.
5. A patient with deep vein thrombosis (DVT) is prescribed warfarin. Which dietary instruction should the nurse provide?
- A. Avoid foods high in vitamin K.
- B. Increase intake of dairy products.
- C. Limit intake of citrus fruits.
- D. Avoid high-sodium foods.
Correct answer: A
Rationale: Patients on warfarin should avoid foods high in vitamin K because vitamin K can interfere with the anticoagulant effect of the medication. Warfarin works by inhibiting vitamin K-dependent clotting factors, so consuming large amounts of vitamin K-rich foods may decrease the effectiveness of the medication. Choices B, C, and D are incorrect. Increasing intake of dairy products, limiting citrus fruits, or avoiding high-sodium foods are not directly related to the mechanism of action of warfarin or its dietary considerations.
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