HESI RN
HESI RN Medical Surgical Practice Exam
1. A CD4+ lymphocyte count is performed on a client infected with HIV. The results of the test indicate a CD4+ count of 450 cells/L. The nurse interprets this test result as indicating:
- A. Improvement in the client
- B. The need for antiretroviral therapy
- C. The need to discontinue antiretroviral therapy
- D. An effective response to the treatment for HIV
Correct answer: B
Rationale: A CD4+ count of 450 cells/L is below the normal range (500-1600 cells/mcL), indicating a decline in immune function in the client. Antiretroviral therapy is recommended when the CD4+ count falls below 500 cells/mcL or below 25%, or when the client displays symptoms of HIV. Therefore, the interpretation of this test result suggests that the client requires antiretroviral therapy to manage the HIV infection. Choices A, C, and D are incorrect because a CD4+ count of 450 cells/L does not signify improvement, discontinuation of therapy, or an effective response to treatment for HIV.
2. Blood is drawn from a client with suspected uric acid calculi for a serum uric acid determination. Which value does the nurse recognize as a normal uric acid level?
- A. 1.7 mg/dL
- B. 5.8 mg/dL
- C. 8.9 mg/dL
- D. 12.8 mg/dL
Correct answer: B
Rationale: The normal range for uric acid is 4.5 to 8 mg/dL for males and 2.5 to 6.2 mg/dL for females. A uric acid level of 5.8 mg/dL falls within the normal range. Choices A, C, and D are outside the normal reference range, making them incorrect. Choice B is the correct answer as it aligns with the typical uric acid levels in the blood.
3. The client is receiving teletherapy radiation for a malignant tumor. Which instruction regarding skin care of the portal site should the nurse provide?
- A. Protect the skin of the radiation portal site from sunlight exposure
- B. Apply moisturizing lotions daily to the radiation portal site
- C. Avoid washing the skin inside the radiation portal site
- D. Remove the ink marks of the portal after each radiation treatment
Correct answer: A
Rationale: Protecting the skin from sunlight exposure is crucial to prevent radiation burns and additional skin damage at the treatment site. Sun exposure can exacerbate skin reactions caused by radiation therapy. Applying moisturizing lotions daily may introduce foreign substances or irritants to the treated area, leading to potential complications. Washing the skin inside the radiation portal site is important for maintaining cleanliness and preventing infections. Removing the ink marks after each treatment is unnecessary and may cause unnecessary skin irritation and trauma.
4. A nursing assistant is measuring the blood pressure (BP) of a hypertensive client while a nurse observes. Which action on the part of the assistant would interfere with accurate measurement and prompt the nurse to intervene? Select all that apply.
- A. Measuring the BP after the client has sat quietly for 5 minutes
- B. Having the client sit with the arm bared and supported at heart level
- C. Using a cuff with a rubber bladder that encircles less than 80% of the limb
- D. Measuring the BP after the client reports that he just drank a cup of coffee
Correct answer: C
Rationale: To ensure accurate blood pressure (BP) measurement, the cuff used should have a rubber bladder that encircles at least 80% of the limb being measured. This ensures proper compression and accurate readings. Choices A and B are correct practices as it is recommended to measure BP after the client has sat quietly for 5 minutes and to have the client sit with the arm bared and supported at heart level. Choice D is also a correct reason for intervention as the client should not have consumed caffeine or smoked tobacco within 30 minutes before BP measurement, as it can affect the accuracy of the reading.
5. A client tells the clinic nurse about experiencing burning on urination, and assessment reveals that the client had sexual intercourse four days ago with a person who was casually met. Which action should the nurse implement?
- A. Observe the perineal area for a chancroid-like lesion
- B. Obtain a specimen of urethral drainage for culture
- C. Assess for perineal itching, erythema, and excoriation
- D. Identify all sexual partners in the last four days
Correct answer: B
Rationale: Obtaining a urethral drainage specimen for culture is crucial in diagnosing a potential sexually transmitted infection (STI) in this client. While assessing for perineal symptoms like itching, erythema, and excoriation (Choice C) may provide additional information, obtaining a culture is more definitive. Observing for a chancroid-like lesion (Choice A) is not as pertinent as obtaining a culture for a broader diagnostic approach. Identifying all sexual partners in the last four days (Choice D) is important for contact tracing but obtaining a specimen for culture takes priority in this scenario.
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