HESI RN
HESI Medical Surgical Exam
1. A client with type 1 diabetes mellitus has influenza. The nurse should instruct the client to:
- A. Increase the frequency of self-monitoring (blood glucose testing).
- B. Reduce food intake to alleviate nausea.
- C. Discontinue the insulin dose if unable to eat.
- D. Take the normal dose of insulin.
Correct answer: A
Rationale: During illness, individuals with type 1 diabetes mellitus may experience increased insulin requirements due to factors such as stress and the release of counterregulatory hormones. Increasing the frequency of self-monitoring, as stated in choice A, is crucial to closely monitor and adjust insulin doses as needed. Choice B, reducing food intake to alleviate nausea, is incorrect as it may lead to hypoglycemia and does not address the increased insulin needs during illness. Choice C, discontinuing the insulin dose if unable to eat, is dangerous as it can result in uncontrolled hyperglycemia. Choice D, taking the normal dose of insulin, may not be sufficient during illness when insulin requirements are likely elevated.
2. An elderly client is admitted with a diagnosis of bacterial pneumonia. The nurse's assessment of the client will most likely reveal which sign/symptom?
- A. Leukocytosis and febrile.
- B. Polycythemia and crackles.
- C. Pharyngitis and sputum production.
- D. Confusion and tachycardia.
Correct answer: D
Rationale: The onset of pneumonia in the elderly may be signaled by general deterioration, confusion, increased heart rate or increased respiratory rate due to the decreased oxygen- carbon dioxide exchange at the alveoli, known as the V-Q mismatch.
3. A client without a history of respiratory disease has a pulse oximeter in place after surgery. The nurse monitors the pulse oximeter readings to ensure that oxygen saturation remains above:
- A. 85%
- B. 89%
- C. 95%
- D. 100%
Correct answer: C
Rationale: Pulse oximetry is a noninvasive method of continuously monitoring the oxygen saturation of hemoglobin (SaO2). In the absence of underlying respiratory disease, the expected oxygen saturation level is at least 95%. Oxygen saturation levels below 95% may indicate hypoxemia, which can compromise tissue perfusion and oxygen delivery to vital organs. Therefore, maintaining oxygen saturation above 95% is crucial to ensure adequate oxygenation post-surgery. Choices A, B, and D are incorrect as they represent oxygen saturation levels that are below the expected value for a client without a history of respiratory disease, which should be at least 95%.
4. A client who has had two episodes of bacterial cystitis in the last 6 months is being assessed by a nurse. Which questions should the nurse ask? (Select all that apply.)
- A. How much water do you drink every day?
- B. Do you take estrogen replacement therapy?
- C. Does anyone in your family have a history of cystitis?
- D. All of the Above
Correct answer: D
Rationale: The correct answers are all of the above (D). Asking about fluid intake (choice A) is important as it can affect the risk of cystitis. Estrogen levels (choice B) can also impact the likelihood of recurrent cystitis. Family history (choice C) is relevant as certain genetic factors can predispose individuals to cystitis. Cranberry juice, not grapefruit or orange juice, has been found to reduce the risk of bacterial cystitis by increasing the acidic pH. Therefore, choices A, B, and C are all pertinent questions to ask during the assessment of a client with recurrent bacterial cystitis.
5. What is the primary purpose of administering IV fluids to a patient in septic shock?
- A. To reduce blood pressure.
- B. To increase cardiac output.
- C. To stabilize blood glucose levels.
- D. To maintain adequate tissue perfusion.
Correct answer: D
Rationale: The primary purpose of administering IV fluids to a patient in septic shock is to maintain adequate tissue perfusion. In septic shock, there is a significant drop in blood pressure and systemic vascular resistance leading to poor tissue perfusion. IV fluids help to restore intravascular volume, improve perfusion to vital organs, and prevent organ failure. Choice A ('To reduce blood pressure') is incorrect because IV fluids in septic shock aim to restore tissue perfusion rather than lower blood pressure. Choice B ('To increase cardiac output') is incorrect as the primary goal is to improve tissue perfusion, not specifically increase cardiac output. Choice C ('To stabilize blood glucose levels') is unrelated to the primary purpose of administering IV fluids in septic shock, which is to address the compromised tissue perfusion.
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