HESI LPN
HESI Fundamentals Test Bank
1. A healthcare professional in a provider's office is reviewing the laboratory findings of a client who reports chills and aching joints. Which of the following findings should the healthcare professional identify as an indication that the client has an infection?
- A. WBC 15,000/mm³
- B. Hemoglobin 12 g/dL
- C. Platelet count 300,000/mm³
- D. Sodium 140 mEq/L
Correct answer: A
Rationale: An elevated white blood cell count (WBC 15,000/mm³) is a common indicator of infection as the body increases WBC production to fight off pathogens. In conditions like infections, inflammation, or stress, the WBC count can rise. The other options, hemoglobin, platelet count, and sodium levels, are not typically specific indicators of infection. Hemoglobin measures the oxygen-carrying capacity of red blood cells, platelet count assesses clotting ability, and sodium levels indicate electrolyte balance.
2. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
3. A client is experiencing dehydration, and the nurse is planning care. Which of the following actions should the nurse include?
- A. Administer antihypertensives as prescribed.
- B. Check the client’s weight daily.
- C. Notify the provider if the urine output is less than 30 mL/hr.
- D. Encourage the client to ambulate independently four times a day.
Correct answer: B
Rationale: Checking the client's weight daily is essential for monitoring fluid status in dehydration. Administering antihypertensives, notifying the provider of insufficient urine output, and encouraging ambulation are not primary interventions for managing dehydration. Administering antihypertensives may affect blood pressure, but it is not a direct intervention for dehydration. Notifying the provider of a urine output less than 30 mL/hr indicates oliguria, which is a sign of reduced kidney function rather than dehydration. Encouraging ambulation is a general nursing intervention and does not directly address the fluid imbalance associated with dehydration.
4. A healthcare professional is planning care for a female client who has an indwelling urinary catheter. Which of the following actions should the healthcare professional include in the plan?
- A. Empty the drainage bag at least every 8 hours
- B. Keep the drainage bag below the level of the bladder
- C. Use sterile technique to collect a specimen from the drainage system
- D. Secure the catheter to the lower abdomen with a securement device
Correct answer: B
Rationale: The correct action to include in the plan is to keep the drainage bag below the level of the bladder. This positioning helps ensure proper drainage and prevents backflow of urine into the bladder, reducing the risk of urinary tract infections. Emptying the drainage bag regularly is important, typically every 4-8 hours or when it is half-full, to maintain adequate flow and prevent infection (Choice A is incorrect). Using a sterile technique to collect specimens from the drainage system is crucial to prevent introducing pathogens into the urinary tract, so clean technique should not be used (Choice C is incorrect). Taping the catheter to the lower abdomen is not recommended as it can cause tension on the catheter, leading to discomfort and potential trauma to the urethra (Choice D is incorrect).
5. A nurse is caring for a client who has a surgical wound. Which of the following laboratory values places the client at risk for poor wound healing?
- A. Serum albumin 3 g/dL
- B. Total lymphocyte count 2400/mm3
- C. HCT 42%
- D. HGB 16 g/dL
Correct answer: A
Rationale: The correct answer is A: Serum albumin 3 g/dL. Low levels of serum albumin indicate poor nutritional status and can impair wound healing. Total lymphocyte count, HCT, and HGB levels are not directly related to wound healing and do not pose a significant risk for poor wound healing in this context. Total lymphocyte count reflects the immune status, HCT measures the percentage of red blood cells in blood, and HGB measures the amount of hemoglobin in blood.
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