HESI RN
Evolve HESI Medical Surgical Practice Exam Quizlet
1. What is a priority intervention for a patient experiencing a thyroid storm?
- A. Administering antipyretics.
- B. Cooling the patient.
- C. Administering beta-blockers.
- D. Administering antithyroid medications.
Correct answer: D
Rationale: During a thyroid storm, the priority intervention is to administer antithyroid medications to reduce thyroid hormone levels quickly. These medications, such as propylthiouracil or methimazole, help inhibit the production of thyroid hormones. Administering antipyretics (choice A) may help reduce fever, but it does not address the underlying cause of the thyroid storm. Cooling the patient (choice B) may provide symptomatic relief but does not address the thyroid hormone dysregulation. Administering beta-blockers (choice C) can help manage symptoms like tachycardia and hypertension, but it does not target the root cause of the thyroid storm.
2. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?
- A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
- B. A serum drug level greater than the MEC broadens the spectrum of the drug.
- C. A serum drug level greater than the MEC helps eradicate bacterial infections.
- D. A serum drug level greater than the MEC increases the therapeutic index.
Correct answer: C
Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.
3. 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.
4. A middle-aged female client with diabetes mellitus is being treated for the third episode of acute pyelonephritis in the past year. The client asks, 'What can I do to help prevent these infections?' How should the nurse respond?
- A. Test your urine daily for the presence of ketone bodies and proteins.
- B. Use tampons rather than sanitary napkins during your menstrual period.
- C. Drink more water and empty your bladder more frequently during the day.
- D. Keep your hemoglobin A1c under 9% by controlling your blood sugar levels.
Correct answer: C
Rationale: The correct answer is C. Clients with long-standing diabetes mellitus are at risk for pyelonephritis due to various reasons. Elevated blood glucose levels in diabetes can lead to glucose spilling into the urine, altering the pH and creating a conducive environment for bacterial growth. Neuropathy associated with diabetes can reduce bladder tone and diminish the sensation of bladder fullness, resulting in less frequent voiding and increased risk of stasis and bacterial overgrowth. Increasing fluid intake, particularly water, and voiding regularly can help prevent stasis and microbial overgrowth. Testing urine for ketones and proteins or using tampons instead of sanitary napkins are not effective strategies for preventing pyelonephritis. Keeping the hemoglobin A1c levels below 9% is crucial for managing diabetes, but it alone does not directly prevent pyelonephritis.
5. A female client taking oral contraceptives reports to the nurse that she is experiencing calf pain. What action should the nurse implement?
- A. Determine if the client has also experienced breast tenderness and weight gain.
- B. Encourage the client to begin a regular, daily program of walking and exercise.
- C. Advise the client to notify the healthcare provider for immediate medical attention.
- D. Tell the client to stop taking the medication for a week to see if symptoms subside.
Correct answer: C
Rationale: Calf pain is indicative of thrombophlebitis, a serious, life-threatening complication associated with the use of oral contraceptives which requires further assessment and possibly immediate medical intervention.
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