HESI RN
HESI 799 RN Exit Exam Quizlet
1. The nurse is caring for a client who is postoperative following a thyroidectomy. Which finding requires immediate intervention?
- A. Hoarse voice
- B. Slight difficulty swallowing
- C. Positive Chvostek's sign
- D. Pain at the incision site
Correct answer: C
Rationale: A positive Chvostek's sign indicates hypocalcemia, a common complication following thyroidectomy due to inadvertent parathyroid gland injury. Immediate intervention is needed to prevent severe hypocalcemia symptoms like tetany, seizures, and laryngospasm. Hoarse voice and slight difficulty swallowing are expected post-thyroidectomy and do not require immediate intervention. Pain at the incision site is common postoperatively and can be managed with appropriate pain relief measures.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
3. Before preparing a client for the first surgical case of the day, a part-time scrub nurse asks the circulating nurse if a 3-minute surgical hand scrub is adequate preparation for this client. Which response should the circulating nurse provide?
- A. Ask a more experienced nurse to perform that scrub since it is the first time of the day
- B. Validate the nurse is implementing the OR policy for surgical hand scrub
- C. Inform the nurse that hand scrubs should be 3 minutes between cases.
- D. Direct the nurse to continue the surgical hand scrub for a 5-minute duration.
Correct answer: D
Rationale: The correct answer is to direct the nurse to continue the surgical hand scrub for a 5-minute duration. Surgical hand scrubs should last for 5 to 10 minutes, ensuring thorough cleaning and disinfection. Choice A is incorrect because the nurse should be guided to complete the scrub properly rather than having someone else do it. Choice B is incorrect as it does not address the duration of the hand scrub. Choice C is incorrect as it suggests a 3-minute hand scrub is sufficient, which is inadequate for proper preparation before surgery.
4. The healthcare provider prescribes an IV solution of isoproterenol (Isuprel) 1 mg in 250 ml of D5W at 300 mcg/hour. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 50 ml/hour
- B. 25 ml/hour
- C. 75 ml/hour
- D. 100 ml/hour
Correct answer: C
Rationale: To calculate the infusion rate, convert 1 mg to 1,000 mcg (1 mg = 1,000 mcg) and then use the formula D/H x Q, where D is the desired dose, H is the dose on hand, and Q is the quantity of solution. In this case, it would be 300 mcg/hour / 1,000 mcg x 250 ml = 75 ml/hour. Therefore, the nurse should program the infusion pump to deliver 75 ml/hour. Choice A (50 ml/hour), Choice B (25 ml/hour), and Choice D (100 ml/hour) are incorrect as they do not correspond to the calculated rate of 75 ml/hour.
5. Following a gunshot wound to the abdomen, a young adult male had an emergency bowel resection and received multiple blood products. His current blood pressure is 78/52 mm Hg, and he is being mechanically ventilated. His oxygen saturation is 87%. Laboratory values indicate hemoglobin of 7 g/dL, platelets of 20,000/mm³, and white blood cells of 2,000/mm³. 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 above 90%.
Correct answer: A
Rationale: The correct answer is to transfuse packed red blood cells first. The client's low hemoglobin level of 7 g/dL indicates severe anemia, which requires immediate transfusion to increase oxygen-carrying capacity. While obtaining blood and sputum cultures (Choice B) is important to identify potential infections, addressing the critical issue of anemia takes precedence. Infusing normal saline (Choice C) may help with volume status but does not address the primary concern of low hemoglobin. Titration of oxygen (Choice D) is crucial, but transfusion to improve oxygen-carrying capacity should be the priority in this scenario.
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