HESI LPN
CAT Exam Practice Test
1. Following a gunshot wound, an adult client has a hemoglobin level of 4 grams/dl (40 mmol/L SI). The nurse prepares to administer a unit of blood for an emergency transfusion. The client has AB negative blood type and the blood bank sends a unit of type A Rh negative, reporting that there is not type AB negative blood currently available. Which intervention should the nurse implement?
- A. Transfuse Type A negative blood until type AB negative is available.
- B. Recheck the client’s hemoglobin, blood type, and Rh factor.
- C. Administer normal saline solution until type AB negative is available.
- D. Obtain additional consent for the administration of type A negative blood.
Correct answer: A
Rationale: In emergency situations where AB negative blood is unavailable, type A negative blood can be transfused to a patient with AB negative blood type. Type A negative blood is compatible with AB negative blood, making it a suitable option until the correct blood type becomes available. Transfusion of Type A negative blood is crucial to address the severe anemia promptly. Rechecking the client’s hemoglobin, blood type, and Rh factor (Choice B) may delay necessary treatment. Administering normal saline solution (Choice C) is not a substitute for blood transfusion in cases of severe anemia. Obtaining additional consent for the administration of type A negative blood (Choice D) is unnecessary as the situation is emergent and the blood type is compatible.
2. A 13-year-old girl, diagnosed with diabetes mellitus Type 1 at the age of 9, is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of the ketoacidosis?
- A. Ate an extra peanut butter sandwich before gym class
- B. Incorrectly drew up and administered too much insulin
- C. Was not hungry, so she skipped eating lunch
- D. Has had a cold and ear infection for the past two days
Correct answer: B
Rationale: The correct answer is B. Incorrect insulin administration is a common cause of diabetic ketoacidosis. Administering too much insulin can lead to uncontrolled hyperglycemia, where the body starts breaking down fat for energy, resulting in the production of ketones. Choices A, C, and D are less likely to directly cause diabetic ketoacidosis. Eating an extra peanut butter sandwich, skipping lunch, or having a cold and ear infection would not directly lead to the metabolic derangements seen in diabetic ketoacidosis.
3. A client has a blood glucose level of 70 mg/dl and reports feeling shaky and weak. What is the best initial action by the nurse?
- A. Obtain a fingerstick glucose reading
- B. Administer 15 grams of a fast-acting carbohydrate
- C. Perform a quick assessment of the client’s neuro status
- D. Provide a glass of milk and monitor the client’s symptoms
Correct answer: B
Rationale: Administering 15 grams of a fast-acting carbohydrate is the best initial action to address hypoglycemia symptoms promptly by raising blood glucose levels. This intervention is crucial to prevent further deterioration in the client's condition. Obtaining a fingerstick glucose reading is important but may delay treatment. Performing a quick assessment of the client's neuro status is secondary to addressing the immediate low blood glucose levels. Providing a glass of milk is not the recommended first-line treatment for hypoglycemia; fast-acting carbohydrates are preferred to rapidly increase blood sugar levels.
4. The nurse is performing a peritoneal dialysis exchange on a client with chronic kidney disease (CKD). Which assessment finding should the nurse report to the healthcare provider?
- A. The appearance of the returning dialysate fluid is cloudy
- B. The client complains of slight shortness of breath during installation
- C. The amount of the returning dialysate fluid is greater than the amount instilled
- D. The client complains of abdominal fullness and cramping during instillation
Correct answer: A
Rationale: Cloudy dialysate fluid can indicate peritonitis, a serious complication of peritoneal dialysis. Peritonitis is an urgent condition that requires immediate evaluation and treatment. Reporting this finding promptly is crucial to prevent further complications. Choices B, C, and D are not indicative of peritonitis and do not require immediate reporting to the healthcare provider. Complaining of slight shortness of breath, having a greater return volume, and experiencing abdominal fullness and cramping are common occurrences during peritoneal dialysis and do not necessarily indicate an emergent issue.
5. A client with type 2 diabetes mellitus is admitted for frequent hyperglycemic episodes and a glycosylated hemoglobin (HbA1c) of 10%. Insulin glargine 10 units subcutaneously once a day at bedtime and a sliding scale with insulin aspart q6h are prescribed. What action should the nurse include in this client’s plan of care?
- A. Perform fingerstick glucose assessment q6h with meals
- B. Mix bedtime dose of insulin glargine with insulin aspart sliding scale dose
- C. Review proper foot care and prevention of injury with the client
- D. Avoid contaminating the insulin aspart for IV use
Correct answer: A
Rationale: Performing fingerstick glucose assessments q6h with meals is essential in monitoring the client's blood glucose levels closely, especially when managing hyperglycemic episodes and adjusting insulin doses with a sliding scale. This action helps in determining the effectiveness of the prescribed insulin regimen. Reviewing proper foot care and preventing injury is important for long-term diabetic management but not the immediate priority in this scenario. Mixing insulin glargine with insulin aspart is not recommended, as they are different types of insulin with distinct mechanisms of action. Ensuring the availability of insulin aspart for IV use is not relevant to the client's current care plan.
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