HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value is most concerning?
- A. Serum ammonia level of 100 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Prothrombin time of 18 seconds
- D. Serum sodium level of 135 mEq/L
Correct answer: A
Rationale: A serum ammonia level of 100 mcg/dl is most concerning in a client with hepatic encephalopathy. Elevated serum ammonia levels indicate significant liver dysfunction and an increased risk of worsening encephalopathy. Bilirubin level and prothrombin time are important in assessing liver function, but in the context of hepatic encephalopathy, elevated ammonia levels take precedence as they directly contribute to neurological symptoms. Serum sodium level, though important, is not the primary concern when managing hepatic encephalopathy.
2. Following a gunshot wound to the abdomen, a young adult male had an emergency bowel resection and received multiple blood products. His current blood pressure is 78/52 mm Hg, and he is being mechanically ventilated. His oxygen saturation is 87%. Laboratory values indicate hemoglobin of 7 g/dL, platelets of 20,000/mm³, and white blood cells of 2,000/mm³. Which intervention should the nurse implement first?
- A. Transfuse packed red blood cells.
- B. Obtain blood and sputum cultures.
- C. Infuse 1000 ml of normal saline.
- D. Titrate oxygen to keep O2 saturation above 90%.
Correct answer: A
Rationale: The correct answer is to transfuse packed red blood cells first. The client's low hemoglobin level of 7 g/dL indicates severe anemia, which requires immediate transfusion to increase oxygen-carrying capacity. While obtaining blood and sputum cultures (Choice B) is important to identify potential infections, addressing the critical issue of anemia takes precedence. Infusing normal saline (Choice C) may help with volume status but does not address the primary concern of low hemoglobin. Titration of oxygen (Choice D) is crucial, but transfusion to improve oxygen-carrying capacity should be the priority in this scenario.
3. A nurse is caring for a client with Diabetes Insipidus. Which assessment finding warrants immediate intervention by the nurse?
- A. Hypernatremia
- B. Excessive thirst
- C. Elevated heart rate
- D. Poor skin turgor
Correct answer: A
Rationale: The correct answer is A: Hypernatremia. In a client with Diabetes Insipidus, hypernatremia, an elevated sodium level in the blood, can lead to neurological symptoms such as confusion, seizures, or coma. Immediate intervention is necessary to prevent these serious complications. Excessive thirst (choice B) is a common symptom of Diabetes Insipidus but does not require immediate intervention. Elevated heart rate (choice C) and poor skin turgor (choice D) are important assessments but are not as critical as hypernatremia in this context.
4. After a third hospitalization 6 months ago, a client is admitted to the hospital with ascites and malnutrition. The client is drowsy but responding to verbal stimuli and reports recently spitting up blood. What assessment finding warrants immediate intervention by the nurse?
- A. Bruises on arms and legs
- B. Round and tight abdomen
- C. Pitting edema in lower legs
- D. Capillary refill of 8 seconds
Correct answer: D
Rationale: In this situation, the client's capillary refill of 8 seconds is the assessment finding that warrants immediate intervention by the nurse. A capillary refill greater than 3 to 5 seconds indicates poor perfusion, which could be a sign of inadequate circulation and oxygenation. Checking capillary refill is a quick and useful way to assess peripheral perfusion. Bruises on arms and legs may indicate a bleeding disorder but are not as urgent as addressing poor perfusion. A round and tight abdomen could suggest ascites, which is already known in this case. Pitting edema in lower legs is a common finding in malnutrition and ascites but does not require immediate intervention as poor capillary refill does.
5. The nurse is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should be monitored closely?
- A. Serum potassium
- B. Hemoglobin
- C. Serum sodium
- D. White blood cell count
Correct answer: A
Rationale: The correct answer is A: Serum potassium. When a client with chronic kidney disease is undergoing erythropoietin therapy, monitoring serum potassium levels is crucial. Erythropoietin can stimulate red blood cell production, which may lead to an increase in potassium levels, predisposing the client to hyperkalemia. Monitoring serum potassium levels helps in early detection of hyperkalemia and appropriate intervention. Choices B, C, and D are incorrect because although hemoglobin, serum sodium, and white blood cell count are important parameters to monitor in various clinical conditions, they are not specifically associated with erythropoietin therapy in chronic kidney disease.
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