HESI RN
HESI Medical Surgical Specialty Exam
1. The nurse is preparing to administer the first dose of intravenous ceftriaxone (Rocephin) to a patient. When reviewing the patient’s chart, the nurse notes that the patient previously experienced a rash when taking amoxicillin. What is the nurse’s next action?
- A. Administer the drug and observe closely for hypersensitivity reactions.
- B. Ask the provider whether a cephalosporin from a different generation may be used.
- C. Contact the provider to report drug hypersensitivity.
- D. Notify the provider and suggest an oral cephalosporin.
Correct answer: A
Rationale: When a patient has a history of a rash with amoxicillin, a beta-lactam antibiotic like ceftriaxone should be administered cautiously due to a possible cross-reactivity. The nurse should still administer the drug but closely monitor the patient for any signs of hypersensitivity reactions. Asking for a different generation of cephalosporin or suggesting an oral form does not address the potential cross-reactivity issue. Contacting the provider to report drug hypersensitivity would delay care when the patient needs immediate treatment.
2. A nurse cares for a client with diabetes mellitus who is prescribed metformin (Glucophage) and is scheduled for an intravenous urography. Which action should the nurse take first?
- A. Contact the provider and recommend discontinuing the metformin.
- B. Keep the client NPO for at least 6 hours prior to the examination.
- C. Check the client’s capillary artery blood glucose and administer prescribed insulin.
- D. Administer intravenous fluids to dilute and increase the excretion of dye.
Correct answer: A
Rationale: Metformin can cause lactic acidosis and renal impairment as the result of an interaction with the dye. This drug must be discontinued for 48 hours before the procedure and not started again after the procedure until urine output is well established. The client’s health care provider needs to provide alternative therapy for the client until the metformin can be resumed. Keeping the client NPO, checking the client’s blood glucose, and administering intravenous fluids should be part of the client’s plan of care, but are not the priority, as the examination should not occur while the client is still taking metformin.
3. Which of the following lab results is most indicative of dehydration?
- A. Low sodium levels.
- B. Elevated creatinine levels.
- C. Low potassium levels.
- D. High blood glucose levels.
Correct answer: B
Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.
4. Laboratory findings indicate that a client's serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Inform the healthcare provider of the need for potassium replacement.
- B. Prepare to administer a glucose-insulin-potassium replacement.
- C. Change the plan of care to include hourly urinary output measurement.
- D. Instruct the client to increase daily intake of potassium-rich foods.
Correct answer: A
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. The immediate action the nurse should take is to inform the healthcare provider of the need for potassium replacement. Option B, preparing to administer glucose-insulin-potassium replacement, is not the first-line intervention; it may be considered in specific situations but requires a healthcare provider's prescription. Option C, changing the plan of care to include hourly urinary output measurement, is not the priority when managing critically low potassium levels. Option D, instructing the client to increase daily intake of potassium-rich foods, is not appropriate in this acute situation where immediate intervention is needed to address the dangerously low potassium level.
5. When working with a large population of African-American clients at a community health center, which priority assessment should a nurse include?
- A. Measure height and weight.
- B. Assess blood pressure.
- C. Observe for any signs of abuse.
- D. Ask about medications.
Correct answer: B
Rationale: Assessing blood pressure is the priority assessment when working with a population of African-American clients due to the high prevalence of hypertension in this group. African Americans have a higher risk of hypertension, which can lead to complications like end-stage renal disease. Monitoring blood pressure allows for the early detection and management of hypertension. While measuring height and weight, observing for signs of abuse, and asking about medications are important assessments, assessing blood pressure is crucial in this context to address the specific health needs of African-American clients.
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