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. Twenty minutes after beginning a heat application, the client states that the heating pad no longer feels warm enough. What is the best response by the nurse?
- A. That means you have derived the maximum benefit, and the heat can be removed.
- B. Your blood vessels are becoming dilated and removing the heat from the site.
- C. We will increase the temperature by 5 degrees when the pad no longer feels warm.
- D. The body's receptors adapt over time as they are exposed to heat.
Correct answer: D
Rationale: Choice (D) describes thermal adaptation, which occurs 20 to 30 minutes after heat application. The body's receptors adjust to the constant heat exposure, leading to a decreased sensation of warmth. Choices (A) and (B) provide inaccurate information regarding the situation, while choice (C) is not physiologically sound and could potentially harm the client by increasing the temperature unnecessarily.
3. A client is admitted to the hospital with a diagnosis of pneumonia. Which laboratory test result should the nurse monitor to evaluate the client’s respiratory function?
- A. Arterial blood gases (ABGs)
- B. Complete blood count (CBC)
- C. Blood glucose levels
- D. Serum electrolyte levels
Correct answer: A
Rationale: Arterial blood gases (ABGs) are the most appropriate laboratory test to monitor respiratory function in a client with pneumonia. ABGs provide valuable information on oxygenation status, acid-base balance, and how well the lungs are exchanging gases. This information helps in assessing the effectiveness of ventilation and oxygenation, guiding treatment decisions, and evaluating the overall respiratory status of the client.
4. An older adult who recently began self-administration of insulin calls the nurse daily to review the steps that should be taken when giving an injection. The nurse has assessed the client's skills during two previous office visits and knows that the client is capable of giving the daily injection. Which response by the nurse is likely to be most helpful in encouraging the client to assume total responsibility for the daily injections?
- A. I know you are capable of giving yourself the insulin.
- B. Giving yourself the injection seems to make you nervous.
- C. When I watched you give yourself the injection, you did it correctly.
- D. Tell me what you want me to do to help you give yourself the injection at home.
Correct answer: C
Rationale: Choice C is the correct answer because focusing on the client's demonstrated ability to self-administer the injection is likely to reinforce his level of competence without sounding punitive. By acknowledging the client's correct performance during the self-injection, the nurse can boost the client's confidence, encouraging him to assume total responsibility for the daily injections. Choices A, B, and D do not directly highlight the client's competence in self-administration, which may not be as effective in promoting independent self-care.
5. When culturing a wound, the nurse should obtain the sample from which part of the wound?
- A. The outer edges of the wound.
- B. All necrotic sections of the wound.
- C. Areas containing purulent or pooled exudates.
- D. Any particularly painful area of the wound.
Correct answer: C
Rationale: To collect a wound culture, the nurse should first clean the wound to remove skin flora and then insert a sterile swab from a culturette tube into the wound secretions.
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