HESI RN
HESI 799 RN Exit Exam Quizlet
1. 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.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
3. The healthcare provider should observe most closely for drug toxicity when a client receives a medication that has which characteristic?
- A. Low bioavailability
- B. Rapid onset of action
- C. Short half-life
- D. Narrow therapeutic index
Correct answer: D
Rationale: The correct answer is D, narrow therapeutic index. Narrow therapeutic index (NTI) drugs are defined as those drugs where small differences in dose or blood concentration may lead to serious therapeutic failures or adverse drug reactions. Choices A, B, and C are not directly related to the risk of drug toxicity. Low bioavailability (Choice A) refers to the amount of drug that enters the bloodstream unchanged after administration. Rapid onset of action (Choice B) and short half-life (Choice C) are characteristics related to drug effectiveness and metabolism but do not necessarily indicate a higher risk of drug toxicity.
4. 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.
5. An adult female client is admitted to the psychiatric unit with a diagnosis of major depressive disorder. After starting medication therapy, the nurse notices the client has more energy, is giving away her belongings, and has an elevated mood. Which intervention is best for the nurse to implement?
- A. Support the client by telling her what wonderful progress she is making.
- B. Ask the client if she has had any recent thoughts of harming herself.
- C. Reassure the client that the antidepressant drugs are apparently effective.
- D. Tell the client to keep her belongings because she will need them at discharge.
Correct answer: B
Rationale: When a client with major depressive disorder shows signs of increased energy, giving away belongings, and an elevated mood, it could indicate a shift towards suicidal behavior. Therefore, the best intervention for the nurse is to ask the client if she has had any recent thoughts of harming herself. This is crucial to assess the client's risk for suicide and provide necessary interventions. Choices A, C, and D are incorrect because they do not address the potential risk of harm to the client and do not prioritize the immediate assessment required in this situation.
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