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. Why is lactated Ringer’s solution given to a patient experiencing vomiting and diarrhea?
- A. To increase interstitial and intracellular hydration
- B. To maintain plasma volume over time
- C. To pull water from the interstitial space into the extracellular fluid
- D. To replace water and electrolytes
Correct answer: D
Rationale: Lactated Ringer’s solution is an isotonic solution commonly used to replace water and electrolytes lost due to conditions like vomiting and diarrhea. It helps to restore fluid balance by replacing the lost volume and electrolytes. Option A is incorrect because hypotonic fluids, not lactated Ringer’s solution, increase interstitial and intracellular hydration. Option B is incorrect as colloidal solutions, not lactated Ringer’s solution, are used to maintain plasma volume over time. Option C is incorrect as hypertonic solutions, not lactated Ringer’s solution, pull water from the interstitial space into the extracellular fluid.
3. An adult female client has undergone a routine health screening in the clinic. Which of the following values indicates to the nurse who receives the report of the client’s laboratory work that the client’s hematocrit is normal?
- A. 10%
- B. 22%
- C. 30%
- D. 43%
Correct answer: D
Rationale: The normal hematocrit for an adult female client ranges from 35% to 47%. A hematocrit value of 43% falls within this normal range, indicating normal levels of red blood cells. Choices A, B, and C are low hematocrit values and are considered below the normal range for adult females, signifying potential anemia or other health issues.
4. A healthcare professional is monitoring the respiratory status of a client who has just undergone surgery and is wearing a pulse oximeter. Which of the following coexisting problems is cause for the healthcare professional to suspect that the oxygen saturation readings are not entirely accurate?
- A. Infection
- B. Hypertension
- C. Low blood pressure
- D. Loss of cough reflex
Correct answer: C
Rationale: Low blood pressure (hypotension), shock, and the use of peripheral vasoconstricting medications can lead to inaccurate pulse oximetry readings due to impaired peripheral perfusion. Hypertension and infection are not typically associated with inaccurate pulse oximetry readings, while the loss of cough reflex does not directly affect oxygen saturation readings.
5. A client who has had two episodes of bacterial cystitis in the last 6 months is being assessed by a nurse. Which questions should the nurse ask? (Select all that apply.)
- A. How much water do you drink every day?
- B. Do you take estrogen replacement therapy?
- C. Does anyone in your family have a history of cystitis?
- D. All of the Above
Correct answer: D
Rationale: The correct answers are all of the above (D). Asking about fluid intake (choice A) is important as it can affect the risk of cystitis. Estrogen levels (choice B) can also impact the likelihood of recurrent cystitis. Family history (choice C) is relevant as certain genetic factors can predispose individuals to cystitis. Cranberry juice, not grapefruit or orange juice, has been found to reduce the risk of bacterial cystitis by increasing the acidic pH. Therefore, choices A, B, and C are all pertinent questions to ask during the assessment of a client with recurrent bacterial cystitis.
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