HESI RN
HESI Fundamentals Practice Test
1. Why is it most important to start intravenous infusions in the upper extremities rather than the lower extremities of adults?
- A. Superficial veins are more easily found in the feet and ankles.
- B. A decreased flow rate could lead to thrombosis formation.
- C. It is more challenging to move a cannulated extremity when using the leg or foot.
- D. Veins in the feet and ankles are located deep, making the procedure more painful.
Correct answer: B
Rationale: The most critical reason for initiating intravenous infusions in the upper extremities of adults is to reduce the risk of thrombosis (B). Venous return is typically better in the upper extremities, decreasing the likelihood of thrombus formation, which could be life-threatening if dislodged. Although superficial veins are easily found in the feet and ankles (A), this is not the primary reason for choosing the upper extremities. Handling a leg or foot with an IV (C) is not significantly more challenging than handling an arm or hand. The depth of veins in the feet and ankles (D) does not primarily determine the site for IV placement.
2. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
3. The healthcare provider identifies a potential for infection in a client with partial-thickness (second-degree) and full-thickness (third-degree) burns. What intervention has the highest priority in decreasing the client's risk of infection?
- A. Administration of plasma expanders
- B. Use of careful handwashing technique
- C. Application of a topical antibacterial cream
- D. Limiting visitors to the client with burns
Correct answer: B
Rationale: Proper handwashing technique is crucial in preventing the transmission of infections, especially in clients with burns where the risk of infection is high. It is the most effective intervention to reduce the risk of contamination and promote healing in these clients. While plasma expanders, topical antibacterial creams, and visitor restrictions are important considerations in burn care, meticulous hand hygiene takes precedence in preventing infections. Handwashing helps remove pathogens that could lead to infections, making it essential in the care of clients with burns.
4. After surgery, a patient has decreased cardiac output. What is a likely observation by the nurse?
- A. Decreased urine output
- B. Increased urine output
- C. Flushing of the skin
- D. Hyperventilation
Correct answer: A
Rationale: A decrease in cardiac output can lead to decreased blood flow to the kidneys, resulting in decreased urine output. The kidneys rely on adequate blood supply to filter waste and produce urine. Therefore, a decreased urine output is a common observation when cardiac output is reduced. Choices B, C, and D are incorrect. Increased urine output is not typically associated with decreased cardiac output; flushing of the skin is more related to vasodilation, and hyperventilation is not directly linked to decreased cardiac output.
5. When a student nurse is caught taking a copy of a client's medication administration record to help a friend prepare for the next day's clinical, what should the nurse respond first?
- A. Ask the nursing supervisor to meet with the student.
- B. Notify the student's clinical instructor of the situation.
- C. Ask the student if permission was obtained from the client.
- D. Explain that the records are hospital property and may not be removed.
Correct answer: D
Rationale: The correct response when a student nurse is caught taking a copy of a client's medication administration record is to explain that the records are hospital property and cannot be removed. It is essential to educate the student about the confidentiality and security of patient information, emphasizing that even with the client's consent, such actions are unacceptable. Option A is not the immediate action needed, as addressing the student directly should come first. Option B involves notifying another party before addressing the student directly. Option C is incorrect because even if the client gave permission, patient records are confidential and cannot be shared without authorization.
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