HESI RN
HESI 799 RN Exit Exam
1. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which assessment finding is most concerning?
- A. Bradycardia
- B. Muscle weakness
- C. Peaked T waves on the ECG
- D. Decreased deep tendon reflexes
Correct answer: C
Rationale: The correct answer is C: Peaked T waves on the ECG. In hyperkalemia, elevated potassium levels can affect the heart's electrical activity, leading to changes on the ECG such as peaked T waves. This finding is concerning as it can progress to serious cardiac arrhythmias, including ventricular tachycardia and fibrillation. Bradycardia (choice A) and decreased deep tendon reflexes (choice D) are not typically associated with hyperkalemia. While muscle weakness (choice B) can occur in hyperkalemia due to its effect on neuromuscular function, the most concerning assessment finding indicating the need for immediate intervention in this scenario is peaked T waves on the ECG.
2. Which instruction is most important for a client who receives a new plan of care to treat osteoporosis?
- A. Start a weight-bearing exercise plan.
- B. Increase consumption of foods rich in calcium.
- C. Arrange a bone density test every year.
- D. Stay upright after taking the medication.
Correct answer: D
Rationale: The correct answer is D: 'Stay upright after taking the medication.' This instruction is crucial for clients receiving medications like bisphosphonates to prevent esophageal irritation or erosion. While weight-bearing exercises (choice A) are important for bone health, staying upright after medication intake takes precedence. Increasing calcium-rich foods (choice B) is beneficial but not the most important immediate instruction. Scheduling bone density tests (choice C) is necessary for monitoring osteoporosis but is not as critical as staying upright after medication.
3. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?
- A. Serum creatine kinase (CK)
- B. Serum troponin
- C. Serum myoglobin
- D. C-reactive protein (CRP)
Correct answer: B
Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.
4. A nurse is preparing to administer a dose of digoxin (Lanoxin) to a client with heart failure. Which assessment finding requires immediate intervention?
- A. Apical pulse of 58 beats per minute
- B. Blood pressure of 110/70 mmHg
- C. Presence of a new murmur
- D. Respiratory rate of 18 breaths per minute
Correct answer: A
Rationale: An apical pulse of 58 beats per minute is concerning when administering digoxin because digoxin can further lower the heart rate, leading to bradycardia or heart block. Immediate intervention is required to prevent potential complications. A blood pressure of 110/70 mmHg is within normal range and does not require immediate intervention in this context. The presence of a new murmur may indicate valvular issues but does not directly relate to the administration of digoxin. A respiratory rate of 18 breaths per minute is also within normal limits and is not a priority concern when administering digoxin.
5. The healthcare provider is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which clinical finding is most concerning?
- A. Increased fatigue
- B. Elevated blood pressure
- C. Elevated hemoglobin
- D. Low urine output
Correct answer: B
Rationale: In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, elevated blood pressure is the most concerning finding. Elevated blood pressure can indicate worsening hypertension, which requires immediate intervention to prevent further damage to the kidneys and other organs. Increased fatigue (choice A) is a common symptom in CKD but may not be as acutely concerning as elevated blood pressure. Elevated hemoglobin (choice C) can be an expected outcome of erythropoietin therapy and is not necessarily concerning. Low urine output (choice D) is important to monitor in CKD but may not be as immediately concerning as elevated blood pressure in this context.
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