HESI RN
HESI Medical Surgical Exam
1. A client with Diabetes Insipidus (DI) is being cared for by a nurse. Which data warrants the most immediate intervention by the nurse?
- A. Serum sodium of 185 mEq/L (185 mmol/L)
- B. Dry skin with poor skin turgor
- C. Apical rate of 110 beats per minute
- D. Polyuria and excessive thirst
Correct answer: A
Rationale: A serum sodium level of 185 mEq/L (185 mmol/L) is dangerously high and indicates severe dehydration, requiring immediate intervention to prevent neurological damage. The other options are not as critical as high serum sodium levels, which can lead to serious complications such as seizures, coma, and death if not promptly addressed. Dry skin with poor skin turgor and polyuria with excessive thirst are common findings in clients with Diabetes Insipidus and should be managed but do not pose an immediate threat to the client's life. An apical heart rate of 110 beats per minute may indicate tachycardia, which could be related to dehydration but is not as urgent as addressing the severe hypernatremia.
2. To evaluate the positive effect of furosemide (Lasix) 40 mg/day in a client with chronic kidney disease (CKD), what is the best action for the nurse to take?
- A. Obtain daily weights of the client.
- B. Auscultate heart and breath sounds.
- C. Palpate the client’s abdomen.
- D. Assess the client’s diet history.
Correct answer: A
Rationale: The correct answer is A. Furosemide (Lasix) is a loop diuretic used to manage fluid overload and hypertension in clients with CKD. Monitoring daily weights is crucial as weight changes reflect fluid status. Each kilogram of weight change approximately corresponds to 1 liter of fluid retention or loss, making it essential for evaluating the medication's effectiveness. Auscultating heart and breath sounds is more relevant for heart failure cases with fluid retention, not specifically for assessing the effect of furosemide in CKD. Palpating the abdomen is not a direct indicator of furosemide's effectiveness; instead, assessing for edema would be appropriate. While assessing the client's diet history is important to monitor electrolyte balance due to potassium loss with furosemide, it does not directly evaluate the medication's efficacy.
3. An adult client who received partial thickness burns on 40% of the body in a house fire is admitted to the inpatient burn unit. Which fluid should the nurse prepare to administer during the client's burn recovery?
- A. 5% dextrose in water
- B. 5% dextrose in 0.25 normal saline
- C. Total parenteral nutrition
- D. Lactated Ringer's
Correct answer: D
Rationale: During the burn recovery phase, the nurse should prepare to administer Lactated Ringer's solution. Lactated Ringer's is the preferred fluid choice for burn patients as it helps replace lost fluids and electrolytes, maintain perfusion, and support organ function. Option A, 5% dextrose in water, is not the appropriate choice for fluid resuscitation in burn patients. Option B, 5% dextrose in 0.25 normal saline, does not provide the necessary electrolytes needed for burn recovery. Option C, Total parenteral nutrition, may be considered later in the treatment but is not the initial fluid of choice for burn recovery.
4. 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.
5. The patient will begin taking doxycycline to treat an infection. When should the nurse plan to give this medication?
- A. 1 hour before or 2 hours after a meal.
- B. with an antacid to minimize GI irritation.
- C. with food to improve absorption.
- D. with small sips of water.
Correct answer: C
Rationale: Doxycycline is a lipid-soluble tetracycline that is better absorbed when taken with milk products and food. Taking doxycycline with food helps improve its absorption. It should not be taken on an empty stomach, as this can decrease its effectiveness. Antacids can interfere with the absorption of tetracyclines, so they should not be taken together. While it is important to stay hydrated when taking medications, small sips of water are not specifically recommended for doxycycline administration.
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