HESI RN
HESI 799 RN Exit Exam
1. The nurse needs to add a medication to a liter of 5% Dextrose in Water (D5W) that is already infusing into a client. At what location should the nurse inject the medication?
- A. Medication port
- B. IV drip chamber
- C. Y-site connector
- D. At the hub of the IV catheter
Correct answer: A
Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.
2. While auscultating a client's heart sounds, which description should the nurse use to document a swishing sound related to blood turbulence or valvular defect?
- A. S1 S2
- B. S1 S2 S3
- C. Murmur
- D. Pericardial friction rub
Correct answer: C
Rationale: The correct answer is 'C: Murmur.' A murmur is auscultated as a swishing sound associated with blood turbulence caused by the heart or a valvular defect. Choices 'A: S1 S2' and 'B: S1 S2 S3' refer to normal heart sounds, specifically the closure of heart valves. 'D: Pericardial friction rub' is a dry, rubbing or grating sound caused by inflammation of the pericardial sac and is not associated with blood flow or valvular issues.
3. Following a gunshot wound to the abdomen, a young adult male had an emergency bowel resection and received multiple blood products while in the operating room. His current blood pressure is 78/52 mm Hg, he is being mechanically ventilated, and his oxygen saturation is 87%. His laboratory values include hemoglobin 7.0 g/dL, platelets 20,000/mm³, and white blood cells 1,500/mm³. Based on these assessment findings, which intervention should the nurse implement first?
- A. Transfuse packed red blood cells.
- B. Obtain blood and sputum cultures.
- C. Infuse 1000 ml of normal saline.
- D. Titrate oxygen to keep O2 saturation at 90%.
Correct answer: A
Rationale: The client is exhibiting signs of severe anemia and hypovolemic shock, indicated by low hemoglobin levels and hypotension. The first priority is to address the low hemoglobin by transfusing packed red blood cells to improve oxygen-carrying capacity and perfusion to vital organs. While obtaining blood and sputum cultures is important for identifying potential infections, infusing normal saline can help with volume expansion but does not address the primary issue of severe anemia. Titrating oxygen to maintain an oxygen saturation of 90% is crucial but should follow the administration of packed red blood cells to optimize oxygen delivery.
4. The nurse enters a client's room and observes the unlicensed assistive personnel (UAP) making an occupied bed as seen in the picture. What action should the nurse take first?
- A. Place the side rails in an up position.
- B. Assist the UAP in turning the client.
- C. Provide instructions on proper bed-making techniques.
- D. Ask the client if they are comfortable.
Correct answer: A
Rationale: Correct Answer: The nurse should first place the side rails in an up position. This action is crucial to prevent the client from falling while the bed is being made. Choice B is incorrect as moving or turning the client is not necessary at this point. Choice C is not a priority when immediate safety concerns are present. Choice D, asking the client if they are comfortable, though important, should come after ensuring the client's safety by raising the side rails.
5. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?
- A. Serum creatine kinase (CK)
- B. Serum troponin
- C. Serum myoglobin
- D. C-reactive protein (CRP)
Correct answer: B
Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.
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