HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 5.5 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L indicates metabolic acidosis in a client with DKA, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis, which is reflected by a low serum bicarbonate level. Correcting the low serum bicarbonate is crucial to normalize the metabolic acidosis and improve the client's condition. While elevated serum glucose (choice A) and urine ketones (choice D) are characteristic of DKA, addressing the metabolic acidosis takes precedence. Serum potassium (choice B) levels may also need monitoring and management, but correcting the acidosis is the priority to prevent complications like cardiovascular collapse.
2. The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should be closely monitored?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum sodium level of 135 mEq/L
Correct answer: A
Rationale: The correct answer is A: Serum potassium level. In clients receiving erythropoietin therapy for chronic kidney disease, monitoring serum potassium levels is crucial due to the risk of developing hyperkalemia. Erythropoietin therapy can stimulate red blood cell production, leading to an increase in potassium levels. Monitoring potassium levels helps prevent complications associated with hyperkalemia, such as cardiac arrhythmias. Choices B, C, and D are incorrect because while hemoglobin levels are relevant for assessing the effectiveness of erythropoietin therapy, monitoring potassium levels is more critical due to the potential adverse effects of elevated potassium levels in CKD patients on this therapy.
3. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which diagnostic test should the nurse anticipate preparing the client for first?
- A. Chest X-ray
- B. Arterial blood gases (ABGs)
- C. Echocardiogram
- D. Electrocardiogram (ECG)
Correct answer: C
Rationale: The correct answer is C: Echocardiogram. An echocardiogram should be performed first to assess ventricular function and evaluate the cause of shortness of breath and crackles in a client with heart failure. An echocardiogram provides valuable information about the heart's structure and function, helping to identify potential issues related to heart failure. Chest X-ray (Choice A) may be done to assess for changes in heart size or fluid in the lungs but does not directly assess heart function. Arterial blood gases (Choice B) may provide information about oxygenation but do not directly evaluate heart function. An electrocardiogram (Choice D) assesses the heart's electrical activity but does not provide detailed information about ventricular function, which is crucial in heart failure management.
4. A client with liver cirrhosis is admitted with ascites and jaundice. Which assessment finding is most concerning?
- A. Serum albumin of 3.0 g/dL
- B. Bilirubin of 3.0 mg/dL
- C. Ammonia level of 80 mcg/dL
- D. Prothrombin time of 18 seconds
Correct answer: C
Rationale: An ammonia level of 80 mcg/dL is elevated and concerning in a client with liver cirrhosis, as it may indicate hepatic encephalopathy. Elevated ammonia levels can lead to cognitive impairment, altered mental status, and even coma. Serum albumin, bilirubin, and prothrombin time are also important markers in liver cirrhosis but are not as directly associated with the risk of hepatic encephalopathy as elevated ammonia levels.
5. A client with liver cirrhosis and severe ascites has a serum sodium level of 115 mEq/L and is receiving 3% saline IV. Which assessment finding indicates that the nurse should notify the healthcare provider?
- A. The client's serum sodium level is now 130 mEq/L
- B. The client reports a headache and has a BP of 140/90
- C. The client reports shortness of breath and has an O2 saturation of 92%
- D. The client has crackles in both lung bases and an increased respiratory rate.
Correct answer: D
Rationale: The presence of crackles in both lung bases and an increased respiratory rate indicates fluid overload, which can be exacerbated by hypertonic saline. This condition can worsen the client's respiratory status and lead to further complications. The other options do not directly relate to the fluid overload caused by the hypertonic saline. A serum sodium level of 130 mEq/L is within a normal range for treatment. A headache and a blood pressure of 140/90 are not specific indicators of worsening condition related to hypertonic saline. Shortness of breath and an O2 saturation of 92% could be related to other factors in a client with liver cirrhosis and ascites.
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