HESI RN
HESI Medical Surgical Specialty Exam
1. The nurse is caring for a patient who will receive 10% calcium gluconate to treat a serum potassium level of 5.9 mEq/L. The nurse performs a drug history prior to beginning the infusion. Which drug taken by the patient would cause concern?
- A. Digitalis
- B. Hydrochlorothiazide
- C. Hydrocortisone
- D. Vitamin D
Correct answer: A
Rationale: Calcium gluconate is administered to treat hyperkalemia by reducing myocardial irritability. When given to a patient taking digitalis, it can lead to digitalis toxicity. Digitalis and calcium gluconate both affect cardiac function, and their concomitant use can potentiate adverse effects. Hydrochlorothiazide, Hydrocortisone, and Vitamin D may impact potassium levels, but they do not interact with calcium gluconate in a way that would cause concern for toxicity.
2. While changing a client's post-operative dressing, the nurse observes a red and swollen wound with a moderate amount of yellow and green drainage and a foul odor. Given there is a positive MRSA, which is the most important action for the nurse to take?
- A. Force oral fluids
- B. Request a nutrition consult
- C. Initiate contact precautions
- D. Limit visitors to immediate family only
Correct answer: C
Rationale: The most important action for the nurse to take when a client has a positive MRSA and presents with a wound showing signs of infection is to initiate contact precautions. MRSA is highly contagious and placing the patient on contact precautions helps prevent the spread of the bacteria to others in the healthcare setting. (A) Forcing oral fluids will not directly address the MRSA infection. (B) Requesting a nutrition consult is not the priority in this situation. (D) Limiting visitors to immediate family only is not necessary as MRSA precautions are primarily focused on healthcare workers and close contacts who provide direct care.
3. The patient has a heart rate of 98 beats per minute and a blood pressure of 82/58 mm Hg, is lethargic, complaining of muscle weakness, and has had gastroenteritis for several days. Based on these findings, which sodium value would the nurse expect?
- A. 126 mEq/L
- B. 140 mEq/L
- C. 145 mEq/L
- D. 158 mEq/L
Correct answer: A
Rationale: The patient's presentation of tachycardia, hypotension, lethargy, muscle weakness, and gastroenteritis suggests hyponatremia. Hyponatremia is characterized by a serum sodium level below the normal range of 135-145 mEq/L. A serum sodium level of 126 mEq/L falls significantly below this range, indicating hyponatremia. Choice B (140 mEq/L) and Choice C (145 mEq/L) are within the normal range for serum sodium levels and would not explain the patient's symptoms. Choice D (158 mEq/L) is above the normal range and would indicate hypernatremia, which is not consistent with the patient's presentation.
4. The client with ovarian cancer is being treated with vincristine (Oncovin). The nurse monitors the client, knowing that which of the following indicates a side effect specific to this medication?
- A. Diarrhea
- B. Hair loss
- C. Chest pain
- D. Numbness and tingling in the fingers and toes
Correct answer: D
Rationale: The correct answer is D: Numbness and tingling in the fingers and toes. Vincristine is known to cause peripheral neuropathy as a side effect, resulting in numbness and tingling in the fingers and toes. Diarrhea, hair loss, and chest pain are not typically associated with vincristine use.
5. The infant scheduled for reduction of intussusception passes a soft-formed brown stool the day before the scheduled procedure. Which intervention should the nurse implement?
- A. Instruct the parents that the infant needs to be NPO.
- B. Notify the healthcare provider of the passage of brown stool.
- C. Obtain a stool specimen for laboratory analysis.
- D. Ask the parents about recent changes in the infant's diet.
Correct answer: B
Rationale: Notifying the healthcare provider is crucial in this situation because the passage of a brown stool may indicate the resolution of intussusception. It is important to keep the healthcare provider informed about any changes in the infant's condition to ensure appropriate care and management. Instructing the parents that the infant needs to be NPO (nothing by mouth) is not necessary based on the passage of brown stool. Obtaining a stool specimen for laboratory analysis is not indicated in this scenario since the brown stool is likely a positive sign. Asking about recent changes in the infant's diet is not the priority at this moment as notifying the healthcare provider takes precedence.