HESI RN
Evolve HESI Medical Surgical Practice Exam Quizlet
1. A young adult client, admitted to the Emergency Department following a motor vehicle collision, is transfused with 4 units of PRBCs (packed red blood cells). The client's pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all the PRBCs have been transfused?
- A. 0.19
- B. 0.09
- C. 0.39
- D. 0.29
Correct answer: D
Rationale: The expected increase in hematocrit after transfusion is approximately 3% per unit of PRBCs. Since the client received 4 units, the expected increase would be 4 x 3% = 12%. Therefore, adding this to the pretransfusion hematocrit of 17% would result in an expected post-transfusion hematocrit of 29%. Choice A (0.19) is incorrect as it doesn't consider the incremental increase per unit of PRBCs. Choices B (0.09) and C (0.39) are also incorrect as they do not align with the expected increase in hematocrit following the transfusion of 4 units of PRBCs.
2. A nursing student is suctioning a client through a tracheostomy tube while a nurse observes. Which action by the student would prompt the nurse to intervene and demonstrate the correct procedure? Select all that apply.
- A. Setting the suction pressure to 60 mm Hg
- B. Applying suction throughout the procedure
- C. Assessing breath sounds before suctioning
- D. Placing the client in a supine position before the procedure
Correct answer: A
Rationale: The correct suction pressure for an adult client with a tracheostomy tube is typically between 80 to 120 mm Hg. Suction should be applied intermittently during catheter withdrawal to avoid damaging the airway. Assessing breath sounds before suctioning is important to ensure the procedure is necessary. Placing the client in a supine position before suctioning can compromise their airway; instead, the head of the bed should be elevated to facilitate proper drainage and reduce the risk of aspiration. Therefore, setting the suction pressure to 60 mm Hg is incorrect and would prompt the nurse to intervene and correct the procedure.
3. A patient is admitted to the hospital for treatment of pneumonia after complaining of high fever and shortness of breath. The patient was not able to produce sputum for a culture. The nurse will expect the patient’s provider to order
- A. a broad-spectrum antibiotic.
- B. a narrow-spectrum antibiotic.
- C. multiple antibiotics.
- D. the pneumococcal vaccine.
Correct answer: A
Rationale: In this scenario where the offending organism causing pneumonia is unknown due to the inability to produce sputum for culture, the appropriate choice is a broad-spectrum antibiotic. Broad-spectrum antibiotics are effective against a wide range of bacteria and are commonly used when the specific pathogen is unidentified. Narrow-spectrum antibiotics target specific types of bacteria and are chosen based on culture and sensitivity results. Using multiple antibiotics without a clear indication from culture and sensitivity testing can lead to antibiotic resistance and is not recommended in this situation. Additionally, the pneumococcal vaccine is preventive and does not treat an ongoing infection like pneumonia.
4. The nurse is preparing to begin a medication regimen for a patient who will receive intravenous ampicillin and gentamicin. Which is an important nursing action?
- A. Administer each antibiotic to infuse over 15 to 20 minutes.
- B. Order serum peak and trough levels of ampicillin.
- C. Prepare the schedule so that the drugs are given at the same time.
- D. Set up separate tubing sets for each drug labeled with the drug name and date.
Correct answer: D
Rationale: When administering intravenous aminoglycosides like gentamicin with penicillins such as ampicillin, it is crucial to avoid mixing them in the same container. Separate tubing sets labeled with the drug name and date should be used to prevent interactions between the medications. Administering each antibiotic over 15 to 20 minutes (Choice A) may not be appropriate for all medications and does not address the issue of compatibility. Ordering serum peak and trough levels of ampicillin (Choice B) is important for monitoring drug levels but does not directly address the administration process. Preparing a schedule to give drugs simultaneously (Choice C) may increase the risk of drug interactions and is not recommended when administering incompatible medications.
5. The nurse is administering intravenous fluids to a dehydrated patient. On the second day of care, the patient's weight has increased by 2.25 pounds. The nurse would expect that the patient's fluid intake has
- A. equaled urine output.
- B. exceeded urine output by 1 L.
- C. exceeded urine output by 2.5 L.
- D. exceeded urine output by 3 L.
Correct answer: B
Rationale: A weight gain of 1 kg, or approximately 2.2 to 2.5 lb, is generally equivalent to 1 liter (L) of fluid retained by the body. In this case, the patient's weight gain of 2.25 pounds suggests an excess fluid retention of approximately 1 liter, indicating that the patient's fluid intake has exceeded urine output by 1 liter. Choices C and D are incorrect as they overestimate the fluid excess based on the patient's weight gain. Choice A is incorrect as it implies an exact balance between fluid intake and urine output, which is not reflected in the given weight increase.
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