HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is reviewing a plan of care for a client who was admitted with dehydration as a result of prolonged watery diarrhea. Which prescription should the healthcare professional question?
- A. Oral psyllium (Metamucil)
- B. Oral potassium supplement
- C. Parenteral half normal saline
- D. Parenteral albumin (Albuminar)
Correct answer: D
Rationale: The correct answer is D, Parenteral albumin (Albuminar). Parenteral albumin is not typically indicated for dehydration resulting from diarrhea. In this case, fluid replacement therapy with intravenous fluids such as parenteral half normal saline would be more appropriate. Oral psyllium and oral potassium supplement are not the primary interventions for managing dehydration due to watery diarrhea. Oral psyllium is a fiber supplement used for constipation rather than diarrhea. Oral potassium supplements may be necessary if potassium levels are low due to dehydration, but the priority is fluid replacement. Therefore, choices A and B are less relevant in this scenario.
2. During a physical assessment, a nurse is assessing 4 adult clients. Which of the following physical assessment techniques should the nurse use?
- A. Ensure the bladder of the BP cuff surrounds 80% of their arm.
- B. Use the BP cuff on the forearm if the upper arm is not accessible.
- C. Apply the BP cuff loosely around the arm.
- D. Use a pediatric cuff for adults with small arms.
Correct answer: A
Rationale: The correct answer is to ensure the bladder of the BP cuff surrounds 80% of the arm. This technique is crucial for obtaining accurate blood pressure readings. Choice B is incorrect because using the BP cuff on the forearm may lead to inaccurate readings. Choice C is incorrect as applying the BP cuff loosely can also result in inaccurate measurements. Choice D is incorrect because using a pediatric cuff for adults with small arms would not provide accurate blood pressure readings.
3. A client is scheduled for an intravenous pyelogram. Which of the following actions is appropriate for the nurse to include?
- A. Monitor the client for pain in the suprapubic region.
- B. Ensure the client is free of metal objects.
- C. Administer 240 mL (8 oz) of oral contrast before the procedure.
- D. Assist the client with a bowel cleansing.
Correct answer: B
Rationale: The correct action for the nurse to include before an intravenous pyelogram is ensuring the client is free of metal objects. Metal objects can interfere with the imaging procedure and may need to be removed to prevent artifacts. Monitoring for pain in the suprapubic region (choice A) is not directly related to the procedure and is not a standard pre-procedure action. Administering oral contrast (choice C) is more common for other imaging studies like a CT scan, not an intravenous pyelogram. Assisting with a bowel cleansing (choice D) is not typically required before an intravenous pyelogram.
4. 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.
5. A nurse is preparing to administer methylprednisolone 10 mg by IV bolus. The amount available is methylprednisolone injection 40-mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Do not use a trailing zero.)
- A. 0.3 mL
- B. 0.25 mL
- C. 0.4 mL
- D. 0.5 mL
Correct answer: A
Rationale: To calculate the mL to administer, use the formula: Dose required (mg) ÷ Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg ÷ 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.
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