the nurse is reviewing a clients electrocardiogram and determines the pr interval pri is prolonged what does this finding indicate
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Nursing Elites

HESI RN

RN HESI Exit Exam

1. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?

Correct answer: C

Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.

2. A client with cirrhosis is admitted with jaundice and ascites. Which laboratory value requires immediate intervention?

Correct answer: C

Rationale: A serum ammonia level of 80 mcg/dL is most concerning in a client with cirrhosis as it may indicate hepatic encephalopathy, requiring immediate intervention. High serum ammonia levels can lead to altered mental status, confusion, and even coma. Serum albumin (choice A) is often decreased in cirrhosis but does not require immediate intervention. Serum bilirubin (choice B) elevation is expected in cirrhosis and may not require immediate intervention unless very high. Serum sodium (choice D) within the given range is generally acceptable and does not require immediate intervention.

3. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be closely monitored before the procedure?

Correct answer: B

Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, which can lead to serious cardiac complications. Hyperkalemia can be exacerbated during hemodialysis, making it crucial to closely monitor serum potassium levels before the procedure. Monitoring serum creatinine, serum calcium, or hemoglobin levels is important in managing ESRD but is not the immediate focus before hemodialysis. Therefore, option B is the correct choice.

4. Before a dressing change to his legs, which intervention is most important for the nurse to implement?

Correct answer: C

Rationale: Maintaining strict aseptic technique is crucial before a dressing change for burn patients to prevent infection. Encouraging the patient to stay at the bedside, using distraction techniques, or placing a drape over the burn area are not as critical as ensuring asepsis in this situation.

5. A client with cirrhosis is admitted with ascites and jaundice. Which assessment finding is most concerning?

Correct answer: B

Rationale: Confusion and altered mental status are concerning signs of hepatic encephalopathy in a client with cirrhosis. Hepatic encephalopathy is a serious complication of liver disease that requires immediate intervention. Peripheral edema may be present due to fluid accumulation, increased abdominal girth can indicate ascites which is common in cirrhosis, and yellowing of the skin is a typical manifestation of jaundice in liver dysfunction, all of which are important but not as immediately concerning as signs of hepatic encephalopathy.

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