HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. A client is being taught how to self-administer daily low-dose heparin injections. Which of the following factors is most likely to increase the client’s motivation to learn?
- A. The client’s belief that his needs will be met through education
- B. The nurse’s empathy regarding the client's self-injection
- C. The client seeking family approval by agreeing to a teaching plan
- D. The nurse explaining the need for education to the client
Correct answer: A
Rationale: The client's belief that his needs will be met through education is the most likely factor to increase motivation to learn. When individuals perceive that their educational efforts will directly benefit them, they are more motivated to engage in the learning process. Empathy from the nurse, seeking family approval, or the nurse explaining the need for education may not be as directly tied to the client's personal benefit and may not necessarily increase motivation to learn.
3. During an assessment, a healthcare professional observes significant tenting of the skin over an older adult client's forearm. What factor should the healthcare professional primarily consider as a cause for this finding?
- A. Thin, parchment-like skin
- B. Loss of adipose tissue
- C. Dehydration
- D. Diminished skin elasticity
Correct answer: C
Rationale: Dehydration is the primary factor to consider in this scenario. Dehydration leads to decreased skin turgor and tenting, where the skin does not return to its normal position when pinched. While thin, parchment-like skin, loss of adipose tissue, and diminished skin elasticity can contribute to skin changes, they are not the primary cause of the significant tenting observed.
4. A staff nurse is teaching a newly hired nurse about alternatives to the use of restraints on clients who are confused. Which of the following instructions should the staff nurse include?
- A. Remove clocks from the client’s room
- B. Use full-length side rails on the client’s bed
- C. Check on the client frequently while they are in the restroom
- D. Encourage physical activity throughout the day to expend energy
Correct answer: D
Rationale: Encouraging physical activity throughout the day is an effective way to manage confusion in clients and reduce the need for restraints. Physical activity helps in expending energy, promoting circulation, and improving overall well-being. Removing clocks from the client’s room (choice A) may not directly address the issue of confusion or reduce the need for restraints. Using full-length side rails on the client’s bed (choice B) can actually increase the risk of entrapment and should be avoided. Checking on the client frequently while they are in the restroom (choice C) is important for monitoring safety but may not directly address the underlying issue of confusion and the need for restraints.
5. In a client with liver cirrhosis, which symptom would be most concerning during assessment?
- A. Jaundice
- B. Ascites
- C. Hepatomegaly
- D. Altered mental status
Correct answer: D
Rationale: Altered mental status would be the most concerning symptom in a client with liver cirrhosis. It may indicate hepatic encephalopathy, a serious complication requiring immediate intervention. While jaundice, ascites, and hepatomegaly are common in liver cirrhosis, they do not directly correlate with the urgency and severity of hepatic encephalopathy as altered mental status does. Therefore, altered mental status takes priority for immediate attention and intervention.
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