HESI RN
HESI 799 RN Exit Exam
1. The nurse needs to add a medication to a liter of 5% Dextrose in Water (D5W) that is already infusing into a client. At what location should the nurse inject the medication?
- A. Medication port
- B. IV drip chamber
- C. Y-site connector
- D. At the hub of the IV catheter
Correct answer: A
Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.
2. A client is admitted with a diagnosis of sepsis. Which assessment finding is most concerning to the nurse?
- A. Temperature of 101.5°F
- B. Heart rate of 110 beats per minute
- C. Respiratory rate of 24 breaths per minute
- D. Blood pressure of 90/60 mmHg
Correct answer: D
Rationale: A blood pressure of 90/60 mmHg in a client with sepsis is concerning for septic shock, a life-threatening condition that requires immediate intervention. Hypotension is a severe manifestation of sepsis that can lead to poor tissue perfusion and organ failure. While the other assessment findings such as an elevated temperature, increased heart rate, and respiratory rate are also common in sepsis, hypotension is particularly alarming as it indicates a critical state of shock and necessitates urgent medical attention.
3. The nurse is caring for a client with a history of myocardial infarction who is experiencing chest pain. Which diagnostic test should the nurse anticipate preparing the client for first?
- A. Electrocardiogram (ECG)
- B. Chest X-ray
- C. Arterial blood gases (ABGs)
- D. Echocardiogram
Correct answer: A
Rationale: Corrected Rationale: An electrocardiogram (ECG) should be performed first to assess for cardiac ischemia in a client with a history of myocardial infarction and chest pain. An ECG provides immediate information about the heart's electrical activity, helping to identify changes indicative of cardiac ischemia or infarction. Chest X-ray (Choice B) is not the initial diagnostic test for assessing chest pain related to myocardial infarction. Arterial blood gases (Choice C) are used to assess oxygenation and acid-base balance but are not the primary diagnostic test for myocardial infarction. An echocardiogram (Choice D) may provide valuable information about cardiac structure and function, but it is not the first-line diagnostic test for acute chest pain in a client with a history of myocardial infarction.
4. The parents of a 6-year-old recently diagnosed with asthma should be taught that symptoms of an acute episode of asthma are due to which physiological response?
- A. Inflammation of the mucous membrane and bronchospasm
- B. Increased mucus production and airway obstruction
- C. Hyperinflation of the lungs and alveolar collapse
- D. Bronchoconstriction and airway inflammation
Correct answer: D
Rationale: The correct answer is D: Bronchoconstriction and airway inflammation. During an acute asthma episode, bronchoconstriction and airway inflammation occur, leading to difficulty breathing. Choices A, B, and C are incorrect. Inflammation of the mucous membrane and bronchospasm (Choice A) are part of the pathophysiology of asthma but do not fully explain the symptoms during an acute episode. Increased mucus production and airway obstruction (Choice B) are also seen in asthma but are not the primary cause of acute symptoms. Hyperinflation of the lungs and alveolar collapse (Choice C) are not typical features of an acute asthma episode.
5. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?
- A. Administer intravenous insulin as prescribed.
- B. Monitor the client's urine output.
- C. Administer intravenous fluids.
- D. Administer 50% dextrose IV push.
Correct answer: A
Rationale: Administering intravenous insulin is the initial priority in managing diabetic ketoacidosis (DKA). Insulin helps to reduce blood glucose levels and correct metabolic acidosis, addressing the underlying cause of DKA. Monitoring urine output (choice B) is important but is not the first intervention needed. Administering intravenous fluids (choice C) is essential to correct dehydration in DKA, but insulin therapy takes precedence. Administering 50% dextrose IV push (choice D) is contraindicated in DKA as it can exacerbate hyperglycemia.
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