HESI RN
HESI Medical Surgical Specialty Exam
1. A client was admitted for a myocardial infarction and cardiogenic shock 2 days ago. Which laboratory test result should a nurse expect to find?
- A. Blood urea nitrogen (BUN) of 52 mg/dL
- B. Creatinine of 2.3 mg/dL
- C. BUN of 10 mg/dL
- D. BUN/creatinine ratio of 8:1
Correct answer: A
Rationale: In cardiogenic shock, decreased renal perfusion leads to an elevated BUN. Choice A is correct. Creatinine remains normal in cardiogenic shock as it signifies kidney damage, which has not occurred in this case. A low BUN indicates overhydration, malnutrition, or liver damage, which are not typically seen in cardiogenic shock. A low BUN/creatinine ratio is associated with fluid volume excess or acute renal tubular acidosis, not specifically indicative of cardiogenic shock.
2. After three days of persistent epigastric pain, a female client presents to the clinic. She has been taking oral antacids without relief. Her vital signs are heart rate 122 beats/minute, respirations 16 breaths/minute, oxygen saturation 96%, and blood pressure 116/70. The nurse obtains a 12-lead electrocardiogram (ECG). Which assessment finding is most critical?
- A. Irregular pulse rhythm
- B. Bile-colored emesis
- C. ST elevation in three leads
- D. Complaint of radiating jaw pain
Correct answer: C
Rationale: ST elevation in three leads is a critical finding that suggests myocardial infarction, requiring immediate attention. This finding indicates ischemia or injury to the heart muscle. Choices A, B, and D are not as critical in this scenario. Irregular pulse rhythm may be concerning but does not indicate an immediate life-threatening condition like myocardial infarction. Bile-colored emesis and complaint of radiating jaw pain are relevant but not as indicative of a myocardial infarction as ST elevation in three leads.
3. In a patient with type 1 diabetes, which of the following is a sign of diabetic ketoacidosis (DKA)?
- A. Polyuria
- B. Bradycardia
- C. Dry skin
- D. Tachycardia
Correct answer: D
Rationale: Tachycardia is a sign of diabetic ketoacidosis (DKA) in a patient with type 1 diabetes. In DKA, the body responds to hyperglycemia and dehydration by increasing heart rate. Polyuria (increased urination) is a symptom of diabetes but not specific to DKA. Bradycardia (slow heart rate) and dry skin are not typical signs of DKA; instead, tachycardia and other signs of volume depletion are more common.
4. A pregnant client tells the nurse, “I am experiencing a burning pain when I urinate.” How should the nurse respond?
- A. This means labor will start soon. Prepare to go to the hospital.
- B. You probably have a urinary tract infection. Drink more cranberry juice.
- C. Make an appointment with your provider to have your infection treated.
- D. Your pelvic wall is weakening. Pelvic muscle exercises should help.
Correct answer: C
Rationale: Pregnant clients with a urinary tract infection require prompt and aggressive treatment because cystitis can lead to acute pyelonephritis during pregnancy. The nurse should encourage the client to make an appointment and have the infection treated. Burning pain when urinating does not indicate the start of labor or weakening of pelvic muscles. Choice A is incorrect because burning pain during urination does not signify the start of labor. Choice B is incorrect because while cranberry juice may help prevent urinary tract infections, it is not a treatment. Choice D is incorrect because burning pain when urinating is not indicative of weakening pelvic muscles.
5. A client with chronic renal failure is receiving calcium acetate (PhosLo). The nurse should monitor the client for which of the following side effects?
- A. Hypercalcemia.
- B. Hypocalcemia.
- C. Hyperglycemia.
- D. Hypoglycemia.
Correct answer: A
Rationale: Corrected Question: A client with chronic renal failure is receiving calcium acetate (PhosLo). The nurse should monitor the client for which of the following side effects? Rationale: The correct answer is A, Hypercalcemia. Calcium acetate (PhosLo) is a medication used to lower phosphate levels in patients with chronic renal failure. It works by binding with dietary phosphate and preventing its absorption. However, this can lead to an excess of calcium in the blood, causing hypercalcemia. Therefore, the nurse should closely monitor the client for signs and symptoms of elevated calcium levels, such as nausea, vomiting, confusion, and muscle weakness. Choices B, C, and D are incorrect as calcium acetate does not typically cause hypocalcemia, hyperglycemia, or hypoglycemia.
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