HESI LPN
Practice HESI Fundamentals Exam
1. When initiating cardiopulmonary resuscitation (CPR), what assessment finding must the healthcare provider confirm before beginning chest compressions?
- A. Absence of a pulse
- B. Presence of a pulse
- C. Respiratory rate
- D. Blood pressure
Correct answer: A
Rationale: The correct answer is A: Absence of a pulse. Prior to initiating chest compressions during CPR, it is essential to confirm the absence of a pulse. Chest compressions are indicated when there is no detectable pulse as it signifies cardiac arrest. Checking for a pulse is a critical step to ensure that CPR is performed on individuals who truly require it. Choices B, C, and D are incorrect because focusing on the presence of a pulse, respiratory rate, or blood pressure before starting chest compressions can delay life-saving interventions in a person experiencing cardiac arrest.
2. A client with acute hemorrhagic anemia is to receive four units of packed RBCs (red blood cells) as rapidly as possible. Which intervention is most important for the LPN/LVN to implement?
- A. Obtain the pre-transfusion hemoglobin level.
- B. Prime the tubing and set up the blood pump.
- C. Monitor vital signs every 15 minutes for the first hour.
- D. Ensure the accuracy of the blood type match.
Correct answer: D
Rationale: Ensuring the accuracy of the blood type match is crucial to prevent transfusion reactions. The LPN/LVN must prioritize this step to avoid adverse outcomes. Obtaining the pre-transfusion hemoglobin level (Option A) is important but not as critical as ensuring blood type compatibility. Priming the tubing and setting up the blood pump (Option B) and monitoring vital signs every 15 minutes (Option C) are essential steps in the transfusion process, but the primary concern should be preventing transfusion reactions by verifying blood type compatibility.
3. A client has a sodium level of 125 mEq/L. Which of the following findings should the nurse expect?
- A. Abdominal cramping
- B. Increased thirst
- C. Elevated blood pressure
- D. Elevated heart rate
Correct answer: A
Rationale: Abdominal cramping is a common manifestation of hyponatremia (low sodium levels). When sodium levels drop, it can lead to changes in the body's water balance, affecting cell function and causing symptoms like abdominal cramping. Increased thirst (choice B) is more commonly associated with hypernatremia (high sodium levels) due to the body's attempt to dilute the excess sodium. Elevated blood pressure (choice C) and elevated heart rate (choice D) are not typically direct manifestations of low sodium levels and are more commonly seen in conditions like dehydration or shock.
4. A client with diabetes mellitus is admitted with a blood glucose level of 600 mg/dL. What is the priority nursing action for the LPN/LVN?
- A. Administer insulin as prescribed.
- B. Administer oral hypoglycemic agents.
- C. Monitor blood glucose levels frequently.
- D. Provide a high-calorie diet.
Correct answer: A
Rationale: The correct answer is to administer insulin as prescribed. When a client with diabetes mellitus presents with a critically high blood glucose level like 600 mg/dL, the priority action is to lower the blood glucose level promptly to prevent complications. Insulin is the appropriate medication to rapidly reduce high blood glucose levels. Administering oral hypoglycemic agents may not act quickly enough in this critical situation. While monitoring blood glucose levels frequently is important, immediate intervention to lower the high blood glucose level takes precedence. Providing a high-calorie diet is contraindicated in this scenario as it would further elevate the blood glucose level.
5. After abdominal surgery, a client has not urinated since the urinary catheter was removed 8 hours ago. What action should the LPN take first?
- A. Perform a bladder scan to assess for urinary retention.
- B. Encourage the client to drink fluids.
- C. Insert a straight catheter to drain the bladder.
- D. Administer a diuretic as prescribed.
Correct answer: A
Rationale: Performing a bladder scan is the initial step to assess for urinary retention in a postoperative client. This non-invasive technique helps determine the volume of urine in the bladder, guiding further interventions. Encouraging the client to drink fluids (Choice B) may be beneficial but is not the priority when assessing for urinary retention. Inserting a straight catheter (Choice C) should not be the initial action without first assessing for retention. Administering a diuretic (Choice D) should not be done without confirming the need through assessment.
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