HESI RN
HESI 799 RN Exit Exam
1. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which diagnostic test should the nurse anticipate preparing the client for first?
- A. Chest X-ray
- B. Arterial blood gases (ABGs)
- C. Echocardiogram
- D. Electrocardiogram (ECG)
Correct answer: C
Rationale: The correct answer is C: Echocardiogram. An echocardiogram should be performed first to assess ventricular function and evaluate the cause of shortness of breath and crackles in a client with heart failure. An echocardiogram provides valuable information about the heart's structure and function, helping to identify potential issues related to heart failure. Chest X-ray (Choice A) may be done to assess for changes in heart size or fluid in the lungs but does not directly assess heart function. Arterial blood gases (Choice B) may provide information about oxygenation but do not directly evaluate heart function. An electrocardiogram (Choice D) assesses the heart's electrical activity but does not provide detailed information about ventricular function, which is crucial in heart failure management.
2. A client with chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which laboratory value is most concerning?
- A. Serum potassium of 6.5 mEq/L
- B. Serum bicarbonate of 18 mEq/L
- C. Serum glucose of 350 mg/dl
- D. Serum sodium of 135 mEq/L
Correct answer: A
Rationale: A serum potassium level of 6.5 mEq/L is concerning in a client with COPD exacerbation as it may lead to life-threatening arrhythmias, requiring immediate intervention. Hyperkalemia can cause cardiac arrhythmias, which pose a significant risk to the patient's life. Options B, C, and D are not typically associated with immediate life-threatening risks in the context of a COPD exacerbation.
3. A young adult male is admitted to the emergency department with diabetic ketoacidosis (DKA). His pH is 7.25, HCO3 is 12 mEq/L, and blood glucose is 310 mg/dl. Which action should the nurse implement?
- A. Infuse sodium chloride 0.9% (normal saline)
- B. Prepare an emergency dose of glucagon
- C. Determine the last time the client ate
- D. Check urine for ketone bodies with a dipstick
Correct answer: A
Rationale: In DKA, restoring fluid balance with sodium chloride is a priority to address the dehydration and electrolyte imbalances present in this condition. Choice B, preparing an emergency dose of glucagon, is incorrect because DKA is characterized by insulin deficiency, not glucagon deficiency. Choice C, determining the last time the client ate, is not the immediate priority in managing DKA. Choice D, checking urine for ketone bodies with a dipstick, may help confirm the diagnosis of DKA but is not the most critical intervention at this time.
4. A female client reports that she drank a liter of a solution to cleanse her intestines but vomited immediately after. How many ml of fluid intake should the nurse document?
- A. 1000 ml
- B. 800 ml
- C. 760 ml
- D. 500 ml
Correct answer: C
Rationale: The correct answer is 760 ml. One liter equals 1000 ml. As the client vomited immediately after drinking, she would have expelled approximately 240 ml (1 cup). Subtracting this from the initial intake of 1000 ml gives us 760 ml as the remaining fluid intake that should be documented. Choices A, B, and D are incorrect because they do not reflect the correct calculation of subtracting the amount vomited from the initial intake.
5. A client with a history of alcoholism is admitted with confusion, ataxia, and nystagmus. Which nursing intervention is a priority for this client?
- A. Monitor for signs of alcohol withdrawal.
- B. Administer thiamine as prescribed.
- C. Provide a quiet environment to reduce confusion.
- D. Initiate fall precautions.
Correct answer: B
Rationale: The correct answer is B: Administer thiamine as prescribed. Administering thiamine is crucial in clients with a history of alcoholism to prevent Wernicke's encephalopathy, which is characterized by confusion, ataxia, and nystagmus. Monitoring for signs of alcohol withdrawal (choice A) is important but not the priority. Providing a quiet environment (choice C) and initiating fall precautions (choice D) are important interventions, but administering thiamine takes precedence due to the risk of Wernicke's encephalopathy.
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