ATI LPN
Medical Surgical ATI Proctored Exam
1. A client with liver failure is at an increased risk of bleeding due to the inability to synthesize prothrombin in the liver. What factor most likely contributes to this loss of function?
- A. Alterations in glucose metabolism
- B. Retention of bile salts
- C. Inadequate production of albumin by hepatocytes
- D. Inability of the liver to use vitamin K
Correct answer: D
Rationale: The correct answer is D. The liver's inability to use vitamin K is the most likely factor contributing to the loss of prothrombin synthesis in liver failure. Vitamin K is essential for the synthesis of prothrombin, a crucial clotting factor. In liver failure, impaired utilization of vitamin K leads to decreased production of prothrombin, increasing the risk of bleeding in affected individuals.
2. A client with type 1 diabetes mellitus is admitted with hyperglycemia. Which laboratory result requires the most immediate intervention?
- A. Serum glucose of 350 mg/dL.
- B. Serum potassium of 2.8 mEq/L.
- C. Serum sodium of 136 mEq/L.
- D. Serum bicarbonate of 20 mEq/L.
Correct answer: B
Rationale: A serum potassium level of 2.8 mEq/L is critically low and can cause cardiac arrhythmias, requiring immediate intervention. Hypokalemia is a life-threatening condition that needs prompt correction to prevent serious complications. High serum glucose levels (choice A) are a concern in diabetes but do not pose an immediate life-threatening risk compared to severe hypokalemia. Serum sodium (choice C) and serum bicarbonate levels (choice D) are within normal ranges and do not require immediate intervention.
3. A client with heart failure is prescribed furosemide (Lasix). Which instruction should the nurse include in the client's teaching plan?
- A. Take the medication before bedtime.
- B. Report any weight gain of more than 2 pounds in a day.
- C. Increase your intake of high-sodium foods.
- D. Limit your fluid intake to less than 1 liter per day.
Correct answer: B
Rationale: In heart failure, fluid retention is a concern. Furosemide helps manage this by promoting diuresis. Instructing the client to report weight gain exceeding 2 pounds in a day is crucial as it can indicate fluid accumulation, prompting timely intervention to prevent worsening heart failure symptoms and complications.
4. In planning the turning schedule for a bedfast client, it is most important for the nurse to consider what assessment finding?
- A. 4+ pitting edema of both lower extremities.
- B. A Braden risk assessment scale rating score of ten.
- C. Warm, dry skin with a fever of 100° F.
- D. Hypoactive bowel sounds with infrequent bowel movements.
Correct answer: B
Rationale: A low Braden score indicates a high risk for pressure ulcers, making regular turning crucial to prevent skin breakdown.
5. The client has acute kidney injury (AKI). Which assessment finding requires immediate intervention?
- A. Urine output of 50 ml in the last hour.
- B. Serum potassium of 6.2 mEq/L.
- C. Blood pressure of 150/90 mm Hg.
- D. Serum creatinine of 2.5 mg/dL.
Correct answer: B
Rationale: An elevated serum potassium level of 6.2 mEq/L in a client with AKI can lead to life-threatening cardiac arrhythmias, necessitating immediate intervention. Hyperkalemia is a serious complication in AKI as impaired kidney function can result in the accumulation of potassium in the blood, posing a risk of cardiac arrest. Prompt treatment to lower potassium levels is crucial to prevent cardiac complications in this situation.
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