HESI RN
HESI Medical Surgical Exam
1. Which of the following is a priority intervention for a patient with suspected sepsis?
- A. Administering antibiotics.
- B. Administering IV fluids.
- C. Administering antipyretics.
- D. Monitoring blood cultures.
Correct answer: D
Rationale: Monitoring blood cultures is a crucial intervention in suspected sepsis because it helps identify the causative organism, which is essential for guiding appropriate antibiotic therapy. Administering antibiotics (Choice A) is important but should be guided by blood culture results. Administering IV fluids (Choice B) is also essential to support hemodynamic stability in sepsis. Administering antipyretics (Choice C) may help reduce fever but is not a priority compared to identifying the causative organism through blood cultures.
2. 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.
3. A client with chronic renal failure is being treated with sodium polystyrene sulfonate (Kayexalate). The nurse should monitor the client for which of the following?
- A. Hyponatremia.
- B. Hypokalemia.
- C. Hyperkalemia.
- D. Hypocalcemia.
Correct answer: C
Rationale: The correct answer is C: Hyperkalemia. Sodium polystyrene sulfonate (Kayexalate) is used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the large intestine, which is then eliminated through the feces. Therefore, the nurse should monitor the client for changes in potassium levels to ensure the effectiveness of the treatment. Choices A, B, and D are incorrect because sodium polystyrene sulfonate (Kayexalate) is not associated with causing hyponatremia, hypokalemia, or hypocalcemia.
4. The healthcare professional is preparing to give a dose of trimethoprim-sulfamethoxazole (TMP-SMX) and learns that the patient takes warfarin (Coumadin). The healthcare professional will request an order for
- A. a decreased dose of TMP-SMX.
- B. a different antibiotic.
- C. an increased dose of warfarin.
- D. coagulation studies.
Correct answer: D
Rationale: Sulfonamides, like trimethoprim-sulfamethoxazole (TMP-SMX), can potentiate the anticoagulant effects of warfarin (Coumadin). To monitor the patient's response and prevent adverse effects, the healthcare professional should request coagulation studies, such as International Normalized Ratio (INR) levels. Choosing a decreased dose of TMP-SMX would not address the potential drug interaction between TMP-SMX and warfarin. Opting for a different antibiotic is not necessary if the interaction can be managed by monitoring. Increasing the dose of warfarin without monitoring could lead to excessive anticoagulation and adverse events, so it's not the appropriate action in this scenario.
5. A nurse is preparing for intershift report when a nurse’s aide pulls an emergency call light in a client’s room. Upon answering the light, the nurse finds a client who returned from surgery earlier in the day experiencing tachycardia and tachypnea. The client’s blood pressure is 88/60 mm Hg. Which action should the nurse take first?
- A. Calling the physician
- B. Checking the hourly urine output
- C. Checking the IV site for infiltration
- D. Placing the client in a modified Trendelenburg position
Correct answer: D
Rationale: The client is exhibiting signs of shock, indicated by tachycardia, tachypnea, and hypotension. Placing the client in a modified Trendelenburg position is the initial action to improve venous return, cardiac output, and subsequently increase blood pressure. This position helps redistribute blood flow to vital organs. Calling the physician should follow once immediate intervention has been initiated. Checking the hourly urine output and IV site are important assessments but are secondary to addressing the client's hemodynamic instability and potential for shock.
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