HESI RN
HESI Medical Surgical Specialty Exam
1. A patient who is being treated for dehydration is receiving 5% dextrose and 0.45% normal saline with 20 mEq/L potassium chloride at a rate of 125 mL/hour. The nurse assuming care for the patient reviews the patient’s serum electrolytes and notes a serum sodium level of 140 mEq/L and a serum potassium level of 3.6 mEq/L. The patient had a urine output of 250 mL during the last 12-hour shift. Which action will the nurse take?
- A. Contact the patient’s provider to discuss increasing the potassium chloride to 40 mEq/L.
- B. Continue the intravenous fluids as ordered and reassess the patient frequently.
- C. Notify the provider and discuss increasing the rate of fluids to 200 mL/hour.
- D. Stop the intravenous fluids and notify the provider of the assessment findings.
Correct answer: D
Rationale: The patient’s potassium level is within normal limits, but the decreased urine output indicates the patient should not receive additional IV potassium. Increasing potassium chloride to 40 mEq/L is not needed as the level is normal. Stopping the IV fluids is appropriate due to the decreased urine output, which suggests potential fluid overload. The nurse should notify the provider of the assessment findings for further management. Increasing the rate of fluids to 200 mL/hour is not recommended without addressing the decreased urine output first.
2. An emergency department nurse assesses a client with kidney trauma and notes that the client’s abdomen is tender and distended, and blood is visible at the urinary meatus. Which prescription should the nurse consult the provider about before implementation?
- A. Assessing vital signs every 15 minutes
- B. Inserting an indwelling urinary catheter
- C. Administering intravenous fluids at 125 mL/hr
- D. Typing and crossmatching for blood products
Correct answer: B
Rationale: In a client with kidney trauma and blood visible at the urinary meatus, inserting a urinary catheter via the urethra should be avoided until further diagnostic studies are completed to prevent potential urethral tears. The nurse should consult the provider about the need for a catheter; if necessary, a suprapubic catheter can be used instead. Assessing vital signs every 15 minutes is important for continuous monitoring of the client's condition. Administering intravenous fluids at 125 mL/hr is crucial to maintain hydration and support kidney function. Typing and crossmatching for blood products is necessary in case the client requires blood transfusion due to potential blood loss from the trauma.
3. The nurse is preparing to administer clarithromycin to a patient. When performing a medication history, the nurse learns that the patient takes warfarin to treat atrial fibrillation. The nurse will perform which action?
- A. Ask the provider if azithromycin may be used instead of clarithromycin.
- B. Obtain an order for continuous cardiovascular monitoring.
- C. Request an order for periodic serum warfarin levels.
- D. Withhold the clarithromycin and notify the provider.
Correct answer: C
Rationale: When a patient taking warfarin also needs to receive clarithromycin, it is essential to monitor periodic serum warfarin levels. Macrolides, including clarithromycin, can increase serum levels of drugs like warfarin. Monitoring serum drug levels helps ensure that the patient's warfarin dose can be adjusted, if necessary, to maintain therapeutic levels. Asking about using azithromycin instead is not the most appropriate action in this situation, as all macrolides can interact with warfarin. Continuous cardiovascular monitoring is not indicated solely based on the use of clarithromycin. Withholding the clarithromycin without proper assessment could delay necessary treatment and is not the best initial action.
4. A middle-aged female client with diabetes mellitus is being treated for the third episode of acute pyelonephritis in the past year. The client asks, 'What can I do to help prevent these infections?' How should the nurse respond?
- A. Test your urine daily for the presence of ketone bodies and proteins.
- B. Use tampons rather than sanitary napkins during your menstrual period.
- C. Drink more water and empty your bladder more frequently during the day.
- D. Keep your hemoglobin A1c under 9% by controlling your blood sugar levels.
Correct answer: C
Rationale: The correct answer is C. Clients with long-standing diabetes mellitus are at risk for pyelonephritis due to various reasons. Elevated blood glucose levels in diabetes can lead to glucose spilling into the urine, altering the pH and creating a conducive environment for bacterial growth. Neuropathy associated with diabetes can reduce bladder tone and diminish the sensation of bladder fullness, resulting in less frequent voiding and increased risk of stasis and bacterial overgrowth. Increasing fluid intake, particularly water, and voiding regularly can help prevent stasis and microbial overgrowth. Testing urine for ketones and proteins or using tampons instead of sanitary napkins are not effective strategies for preventing pyelonephritis. Keeping the hemoglobin A1c levels below 9% is crucial for managing diabetes, but it alone does not directly prevent pyelonephritis.
5. A client is to have a transsphenoidal hypophysectomy to remove a large, invasive pituitary tumor. The nurse should instruct the client that the surgery will be performed through an incision in the:
- A. Back of the mouth.
- B. Nose.
- C. Sinus channel below the right eye.
- D. Upper gingival mucosa in the space between the upper gums and lip.
Correct answer: D
Rationale: The correct answer is D: Upper gingival mucosa in the space between the upper gums and lip. A transsphenoidal hypophysectomy involves accessing the pituitary gland through an incision in the upper gingival mucosa, providing direct access to the pituitary gland without external scars. Choices A, B, and C are incorrect because the surgery is not performed through the back of the mouth, the nose, or the sinus channel below the right eye. It is crucial for the client to understand the specific location of the incision to ensure accurate preoperative education and expectations.
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