HESI RN
HESI Fundamentals Practice Test
1. During a 30-second interval, the nurse counts six respirations, and the client coughs three times. In repeating the count for a second 30-second interval, the nurse counts eight respirations. What respiratory rate should the nurse document?
- A. 14
- B. 16
- C. 17
- D. 28
Correct answer: B
Rationale: The nurse should document a respiratory rate of 16. The second count of eight respirations in a 30-second interval is the most accurate as it was not interrupted by the client coughing. Therefore, this rate reflects the client's typical respiratory pattern and should be documented. Choices A, C, and D are incorrect as they do not consider the interruption caused by the client coughing during the first count, which could have affected the accuracy of the result. The second count of eight respirations provides a more reliable indication of the client's respiratory rate.
2. The health care provider has changed a client's prescription from the PO to the IV route of administration. The nurse should anticipate which change in the pharmacokinetic properties of the medication?
- A. The client will experience increased tolerance to the drug's effects and may need a higher dose.
- B. The onset of action of the drug will occur more rapidly, resulting in a more rapid effect.
- C. The medication will be more highly protein-bound, increasing the duration of action.
- D. The therapeutic index will be increased, placing the client at greater risk for toxicity.
Correct answer: B
Rationale: When a medication is administered via the IV route, the absorptive process is bypassed, leading to a more rapid onset of action. This results in a faster effect of the drug. Choice A is incorrect because changing the route of administration does not necessarily lead to increased tolerance or the need for a higher dose. Choice C is incorrect as changing the route of administration does not directly affect the protein binding of a medication. Choice D is incorrect because increasing the therapeutic index would actually reduce the risk of toxicity, not increase it.
3. The nurse observes an unlicensed assistive personnel (UAP) taking a client's blood pressure with a cuff that is too small, but the blood pressure reading obtained is within the client's usual range. What action is most important for the nurse to implement?
- A. Tell the UAP to use a larger cuff at the next scheduled assessment.
- B. Reassess the client's blood pressure using a larger cuff.
- C. Have the unit educator review this procedure with the UAPs.
- D. Teach the UAP the correct technique for assessing blood pressure.
Correct answer: B
Rationale: The most important action is to ensure that an accurate BP reading is obtained. The nurse should reassess the blood pressure with the correct size cuff (B) to obtain an accurate reading. Postponing reassessment (A) could lead to inaccurate results. While (C and D) are important actions for education and quality improvement, they are not as critical as obtaining an accurate blood pressure reading in this situation.
4. The caregiver learns the use of a gait belt from the nurse for a woman with right-sided weakness. The caregiver demonstrates the skill. Which observation indicates that the caregiver has learned how to perform this procedure correctly?
- A. Standing on the woman's strong side, the caregiver is ready to hold the gait belt if any evidence of weakness is observed.
- B. Standing on the woman's weak side, the caregiver provides security by holding the gait belt from the back.
- C. Standing behind the woman, the caregiver provides balance by holding both sides of the gait belt.
- D. Standing slightly in front and to the right of the woman, the caregiver guides her forward by gently pulling on the gait belt.
Correct answer: B
Rationale: The correct answer is B. Standing on the weak side of the client and holding the gait belt from the back provides better security and support during ambulation, reducing the risk of falls. This positioning allows the caregiver to offer stability and assistance without interfering with the client's movement, ensuring safe ambulation for the client with right-sided weakness. Choices A, C, and D are incorrect because they do not provide the optimal support and security needed for a client with right-sided weakness. Standing on the weak side and holding the gait belt from the back is the most effective way to assist the client while minimizing the risk of falls.
5. What intervention should the healthcare provider include in the plan of care for a client receiving treatment with an Unna's paste boot for leg ulcers due to chronic venous insufficiency?
- A. Check capillary refill of toes on the lower extremity with the Unna's paste boot.
- B. Apply dressing to the wound area before applying the Unna's paste boot.
- C. Wrap the leg from the knee down towards the foot.
- D. Remove the Unna's paste boot every 8 hours to assess wound healing.
Correct answer: A
Rationale: When an Unna's paste boot is applied for leg ulcers due to chronic venous insufficiency, it is crucial to check the capillary refill of the toes on the lower extremity to ensure adequate circulation. The Unna's paste boot can become rigid after drying, potentially affecting circulation distally. Monitoring capillary refill helps assess the perfusion status of the distal extremity and ensures that the treatment is not compromising circulation to the toes.
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