a client with acute renal failure arf is admitted for uncontrolled type 1 diabetes mellitus and hyperkalemia the nurse administers an iv dose of regul
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Nursing Elites

HESI LPN

CAT Exam Practice

1. A client with acute renal failure (ARF) is admitted for uncontrolled type 1 diabetes mellitus and hyperkalemia. The nurse administers an IV dose of regular insulin per sliding scale. Which intervention is the most important for the nurse to include in this client’s plan of care?

Correct answer: A

Rationale: Monitoring cardiac activity is crucial in this scenario because hyperkalemia can lead to serious cardiac dysrhythmias, which can be life-threatening. Regular monitoring of the client’s cardiac activity via telemetry allows for early detection of any potential cardiac complications. Maintaining venous access with a normal saline infusion is important for hydration but does not address the immediate risk of cardiac dysrhythmias posed by hyperkalemia. Assessing glucose levels is essential in diabetes management but is not the priority when dealing with hyperkalemia-induced cardiac risks. Evaluating hourly urine output for the return of normal renal function is important in ARF but is not as urgent as monitoring the client's cardiac activity in the context of hyperkalemia.

2. A nurse working on an endocrine unit should see which client first?

Correct answer: B

Rationale: The correct answer is B. The client with Addison’s disease and a blood sugar level of 62mg/dl (3.44 mmol/l) is experiencing hypoglycemia, which can progress to adrenal crisis. This situation requires immediate attention to prevent further complications. Choices A, C, and D, although concerning, do not pose an immediate life-threatening risk compared to the client with Addison’s disease and hypoglycemia. The adolescent arguing about his insulin dose can be addressed after stabilizing the client with Addison’s disease. The adult with high blood sugar and increased urine output may have hyperglycemia but is not in immediate danger. The client taking corticosteroids who is disoriented needs evaluation but is not in an acute life-threatening condition as the client with hypoglycemia.

3. The healthcare provider is completing a head-to-toe assessment for a client admitted for observation after falling out of a tree. Which finding warrants immediate intervention by the healthcare provider?

Correct answer: B

Rationale: Clear fluid leaking from the nose is concerning for cerebrospinal fluid leakage, which is a medical emergency requiring immediate intervention. Sluggish pupillary response to light may indicate neurological issues but is not as urgent as CSF leakage. Complaint of severe headache is important but not as critical as the possibility of CSF leakage. Periorbital ecchymosis of the right eye could be indicative of trauma but does not pose an immediate threat to the patient's life.

4. The healthcare provider prescribes a fluid challenge of 0.9% sodium chloride 1,000 ml to be infused over 4 hours. The IV administration set delivers 10gtt/ml. How many gtt/minute should the nurse regulate the infusion? (Enter a numeric value only. If rounding is required, round to the nearest whole number.)

Correct answer: A

Rationale: To calculate the rate: (1000 ml / 4 hours) = 250 ml/hour; (250 ml/hour) / (60 minutes/hour) = 4.17 ml/minute; (4.17 ml/minute) * (10 gtt/ml) = 41.7 gtt/minute, rounded to 42 gtt/minute. Therefore, the nurse should regulate the infusion at 42 gtt/minute to deliver the prescribed fluid challenge accurately. The other choices are incorrect as they do not reflect the correct calculation based on the given information.

5. The nurse is calculating the one-minute Apgar score for a newborn male infant and determines that his heart rate is 150 beats/minute, he has a vigorous cry, his muscle tone is good with total flexion, he has quick reflex irritability, and his color is dusky and cyanotic. What Apgar score should the nurse assign to the infant?

Correct answer: A

Rationale: The correct answer is A: 8. The Apgar score is calculated based on five parameters: heart rate, respiratory effort, muscle tone, reflex irritability, and color. In this case, the infant has a good heart rate, vigorous cry, good muscle tone, and quick reflex irritability, which would total to 8. The only factor affecting the score is the cyanotic color, which could indicate potential respiratory or circulatory issues. Choices B, C, and D are incorrect as they do not reflect the overall assessment provided in the scenario.

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