HESI RN
HESI Medical Surgical Exam
1. In the staging process of Hodgkin's disease, what does Stage I indicate?
- A. Involvement of a single lymph node.
- B. Involvement of two or more lymph nodes on the same side of the diaphragm.
- C. Involvement of lymph node regions on both sides of the diaphragm.
- D. Involvement of diffuse disease of one or more extralymphatic organs.
Correct answer: A
Rationale: In the staging process of Hodgkin's disease, Stage I signifies the involvement of a single lymph node. This stage indicates localized disease with the disease being limited to a single lymph node or a group of adjacent nodes. Choices B, C, and D are incorrect because they describe more extensive involvement of lymph nodes, both sides of the diaphragm, or extralymphatic organs, which would correspond to higher stages in the staging system.
2. A female patient who is allergic to penicillin will begin taking an antibiotic to treat a lower respiratory tract infection. The patient tells the nurse that she almost always develops a vaginal yeast infection when she takes antibiotics and that she will take fluconazole (Diflucan) with the antibiotic being prescribed. Which macrolide should the nurse question for this patient?
- A. Azithromycin (Zithromax)
- B. Clarithromycin (Biaxin)
- C. Erythromycin (E-Mycin)
- D. Fidaxomicin (Dificid)
Correct answer: C
Rationale: The nurse should question the prescription of erythromycin for this patient. When erythromycin is given concurrently with fluconazole, erythromycin blood concentration and the risk of sudden cardiac death increase. Therefore, it is not recommended to use erythromycin in combination with fluconazole for this patient. Azithromycin, clarithromycin, and fidaxomicin are alternative macrolide antibiotics that can be considered for this patient without the same risk of interactions when used with fluconazole.
3. The healthcare professional assesses a client with petechiae and ecchymosis scattered across the arms and legs. Which laboratory results should the healthcare professional review?
- A. Red blood cell count
- B. Platelet count
- C. Hemoglobin levels
- D. White blood cell count
Correct answer: B
Rationale: The platelet count is the most appropriate laboratory result to review in a client presenting with petechiae and ecchymosis. Petechiae and ecchymosis are indicative of potential bleeding issues, which can be caused by low platelet count or impaired platelet function. Platelets are essential for clotting, and a low platelet count can lead to bleeding disorders. Reviewing the platelet count will provide valuable information about the client's clotting ability. Choice A, red blood cell count, is not typically associated with petechiae and ecchymosis. Hemoglobin levels (Choice C) are more related to anemia than bleeding disorders like thrombocytopenia. White blood cell count (Choice D) is not directly linked to the presence of petechiae and ecchymosis, which are more specific to platelet-related issues.
4. 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.
5. The nurse is preparing to administer the first dose of intravenous ceftriaxone (Rocephin) to a patient. When reviewing the patient’s chart, the nurse notes that the patient previously experienced a rash when taking amoxicillin. What is the nurse’s next action?
- A. Administer the drug and observe closely for hypersensitivity reactions.
- B. Ask the provider whether a cephalosporin from a different generation may be used.
- C. Contact the provider to report drug hypersensitivity.
- D. Notify the provider and suggest an oral cephalosporin.
Correct answer: A
Rationale: When a patient has a history of a rash with amoxicillin, a beta-lactam antibiotic like ceftriaxone should be administered cautiously due to a possible cross-reactivity. The nurse should still administer the drug but closely monitor the patient for any signs of hypersensitivity reactions. Asking for a different generation of cephalosporin or suggesting an oral form does not address the potential cross-reactivity issue. Contacting the provider to report drug hypersensitivity would delay care when the patient needs immediate treatment.
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